Attachment #114858 for bug #194734

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 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Matthew Hall - bugs 213145, 241585, 194734
 *******************************************************************************/

package org.eclipse.core.tests.internal.databinding.beans;

import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.eclipse.core.databinding.beans.BeanProperties;
import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.beans.IBeanObservable;
import org.eclipse.core.databinding.beans.IBeanProperty;
import org.eclipse.core.databinding.beans.PojoObservables;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.map.IMapChangeListener;
import org.eclipse.core.databinding.observable.map.IObservableMap;
import org.eclipse.core.databinding.observable.map.MapChangeEvent;
import org.eclipse.core.databinding.observable.map.MapDiff;
import org.eclipse.core.databinding.observable.set.WritableSet;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableMap;
import org.eclipse.core.tests.databinding.observable.ThreadRealm;
import org.eclipse.jface.databinding.conformance.util.ChangeEventTracker;
import org.eclipse.jface.databinding.conformance.util.CurrentRealm;


	private PropertyDescriptor propertyDescriptor;

	private IObservableMap map;
	private IBeanObservable beanObservable;

	protected void setUp() throws Exception {
		ThreadRealm realm = new ThreadRealm();

		set.add(model1);
		set.add(model2);

		String propertyName = "value";
		propertyDescriptor = ((IBeanProperty) BeanProperties.valueProperty(
				Bean.class, propertyName)).getPropertyDescriptor();
		map = BeansObservables.observeMap(set, Bean.class, propertyName);
		beanObservable = (IBeanObservable) map;
	}

	public void testGetValue() throws Exception {

	}
	
	public void testGetObserved() throws Exception {
		assertEquals(set, beanObservable.getObserved());
	}
	
	public void testGetPropertyDescriptor() throws Exception {
		assertEquals(propertyDescriptor, beanObservable.getPropertyDescriptor());
	}
	
	public void testConstructor_SkipRegisterListeners() throws Exception {

		Bean bean = new Bean();
		set.add(bean);
		
		IObservableMap observable = PojoObservables.observeMap(set, Bean.class,
				"value");
		assertFalse(bean.hasListeners("value"));
		ChangeEventTracker.observe(observable);

		assertFalse(bean.hasListeners("value"));

		Bean bean = new Bean();
		set.add(bean);
		
		IObservableMap observable = BeansObservables.observeMap(set,
				Bean.class, "value");
		assertFalse(bean.hasListeners("value"));
		ChangeEventTracker.observe(observable);

		assertTrue(bean.hasListeners("value"));




 *     Brad Reynolds - initial API and implementation
 *     Brad Reynolds - bug 171616
 *     Katarzyna Marszalek - test case for bug 198519
 *     Matthew Hall - bugs 213145, 194734
 ******************************************************************************/

package org.eclipse.core.tests.internal.databinding.beans;

import java.beans.IntrospectionException;
import java.beans.PropertyDescriptor;

import junit.framework.Test;
import junit.framework.TestSuite;

import org.eclipse.core.databinding.beans.BeanProperties;
import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.beans.IBeanObservable;
import org.eclipse.core.databinding.beans.IBeanProperty;
import org.eclipse.core.databinding.beans.PojoObservables;
import org.eclipse.core.databinding.observable.ChangeEvent;
import org.eclipse.core.databinding.observable.IChangeListener;
import org.eclipse.core.databinding.observable.IObservable;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.value.ComputedValue;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableValue;
import org.eclipse.jface.databinding.conformance.MutableObservableValueContractTest;
import org.eclipse.jface.databinding.conformance.delegate.AbstractObservableValueContractDelegate;
import org.eclipse.jface.databinding.conformance.util.ChangeEventTracker;

 */
public class JavaBeanObservableValueTest extends AbstractDefaultRealmTestCase {
	private Bean bean;
	private IObservableValue observableValue;
	private IBeanObservable beanObservable;
	private PropertyDescriptor propertyDescriptor;
	private String propertyName;

	/* (non-Javadoc)
	 * @see junit.framework.TestCase#setUp()
	 */
	protected void setUp() throws Exception {
		super.setUp();
		
		bean = new Bean();
		propertyName = "value";
		propertyDescriptor = ((IBeanProperty) BeanProperties.valueProperty(
				Bean.class, propertyName)).getPropertyDescriptor();
		observableValue = BeansObservables.observeValue(bean, propertyName);
		beanObservable = (IBeanObservable) observableValue;
	}

	public void testGetObserved() throws Exception {
		assertEquals(bean, beanObservable.getObserved());
	}

	public void testGetPropertyDescriptor() throws Exception {
    	assertEquals(propertyDescriptor, beanObservable.getPropertyDescriptor());
	}

	public void testSetValueThrowsExceptionThrownByBean() throws Exception {
		ThrowsSetException temp = new ThrowsSetException();
		IObservableValue observable = BeansObservables.observeValue(temp,
				"value");
				new PropertyDescriptor("value", ThrowsSetException.class));

		try {
			observable.setValue("");

	
	public void testGetValueThrowsExceptionThrownByBean() throws Exception {
		ThrowsGetException temp = new ThrowsGetException();
		IObservableValue observable = BeansObservables.observeValue(temp,
				"value");
				new PropertyDescriptor("value", ThrowsGetException.class));

		try {
			observable.getValue();

	}

	public void testConstructor_RegistersListeners() throws Exception {
		IObservableValue observable = BeansObservables.observeValue(bean,
				propertyName);
		ChangeEventTracker.observe(observable);
		
		assertTrue(bean.hasListeners(propertyName));
	}
	
	public void testConstructor_SkipRegisterListeners() throws Exception {
		IObservableValue observable = PojoObservables.observeValue(bean,
				propertyName);
		ChangeEventTracker.observe(observable);
		
		assertFalse(bean.hasListeners(propertyName));

		}
		
		public IObservableValue createObservableValue(Realm realm) {
			return BeansObservables.observeValue(realm, bean, "value");
				PropertyDescriptor propertyDescriptor = new PropertyDescriptor("value", Bean.class);
				return new JavaBeanObservableValue(realm, bean,
						propertyDescriptor);					
			} catch (IntrospectionException e) {
				throw new RuntimeException(e);
			}
		}
		
		public void change(IObservable observable) {




 *
 * Contributors:
 *     Brad Reynolds - initial API and implementation
 *     Matthew Hall - bugs 221351, 213145, 194734
 ******************************************************************************/

package org.eclipse.core.tests.internal.databinding.beans;

import java.beans.IntrospectionException;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.beans.PropertyDescriptor;

import junit.framework.Test;
import junit.framework.TestSuite;

import org.eclipse.core.databinding.beans.BeanProperties;
import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.beans.IBeanObservable;
import org.eclipse.core.databinding.beans.IBeanProperty;
import org.eclipse.core.databinding.observable.IObservable;
import org.eclipse.core.databinding.observable.IObservableCollection;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.list.IObservableList;
import org.eclipse.core.databinding.observable.list.ListChangeEvent;
import org.eclipse.core.databinding.observable.list.ListDiffEntry;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableList;
import org.eclipse.jface.databinding.conformance.MutableObservableListContractTest;
import org.eclipse.jface.databinding.conformance.delegate.AbstractObservableCollectionContractDelegate;
import org.eclipse.jface.databinding.conformance.util.ListChangeEventTracker;

 */
public class JavaBeanObservableArrayBasedListTest extends
		AbstractDefaultRealmTestCase {
	private IObservableList list;
	private IBeanObservable beanObservable;

	private PropertyDescriptor propertyDescriptor;


		super.setUp();

		propertyName = "array";
		propertyDescriptor = ((IBeanProperty) BeanProperties.listProperty(
				Bean.class, propertyName)).getPropertyDescriptor();
		bean = new Bean(new Object[0]);

		list = BeansObservables.observeList(SWTObservables.getRealm(Display
				.getDefault()), bean, propertyName);
		beanObservable = (IBeanObservable) list;
	}

	public void testGetObserved() throws Exception {
		assertSame(bean, beanObservable.getObserved());
	}

	public void testGetPropertyDescriptor() throws Exception {
		assertEquals(propertyDescriptor, beanObservable.getPropertyDescriptor());
	}

	public void testRegistersListenerAfterFirstListenerIsAdded()

	}

	public void testRemoveAll() throws Exception {
		list.addAll(Arrays.asList(new String[] { "1", "2", "3", "4" }));
		list.addAll(elements);
		list.addAll(elements);

		assertEquals(4, bean.getArray().length);

		list.removeAll(Arrays.asList(new String[] { "2", "4" }));

		assertEquals(2, bean.getArray().length);
		assertEquals("1", bean.getArray()[0]);
		assertEquals("3", bean.getArray()[1]);
	}

	public void testRemoveAllListChangeEvent() throws Exception {

		PropertyChangeEvent event = listener.evt;
		assertEquals("event did not fire", 1, listener.count);
		assertEquals("array", event.getPropertyName());
		assertTrue("old value", Arrays.equals(old, (Object[]) event
				.getOldValue()));
		assertTrue("new value", Arrays.equals(bean.getArray(), (Object[]) event
				.getNewValue()));
		assertFalse("lists are equal", Arrays.equals(bean.getArray(), old));
	}



		PropertyChangeEvent evt;

		/*
		 * (non-Javadoc)
		 * 
		 * @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent)
		 */
		public void propertyChange(PropertyChangeEvent evt) {
			count++;
			this.evt = evt;

		public IObservableCollection createObservableCollection(Realm realm,
				int elementCount) {
			String propertyName = "array";
			PropertyDescriptor propertyDescriptor;
			try {
				propertyDescriptor = new PropertyDescriptor(propertyName,
						Bean.class);
			} catch (IntrospectionException e) {
				throw new RuntimeException(e);
			}
			Object bean = new Bean(new Object[0]);

			IObservableList list = BeansObservables.observeList(realm, bean,
					propertyName, String.class);
			for (int i = 0; i < elementCount; i++)
				list.add(createElement(list));
			return list;




 *
 * Contributors:
 *     Brad Reynolds - initial API and implementation
 *     Matthew Hall - bugs 221351, 213145, 194734
 ******************************************************************************/

package org.eclipse.core.tests.internal.databinding.beans;

import java.beans.IntrospectionException;
import java.beans.PropertyDescriptor;
import java.util.Arrays;
import java.util.HashSet;

import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.eclipse.core.databinding.beans.BeanProperties;
import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.beans.IBeanObservable;
import org.eclipse.core.databinding.beans.IBeanProperty;
import org.eclipse.core.databinding.beans.PojoObservables;
import org.eclipse.core.databinding.observable.IObservable;
import org.eclipse.core.databinding.observable.IObservableCollection;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.set.IObservableSet;
import org.eclipse.core.databinding.observable.set.ISetChangeListener;
import org.eclipse.core.databinding.observable.set.SetChangeEvent;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableSet;
import org.eclipse.jface.databinding.conformance.MutableObservableSetContractTest;
import org.eclipse.jface.databinding.conformance.delegate.AbstractObservableCollectionContractDelegate;
import org.eclipse.jface.databinding.conformance.util.ChangeEventTracker;

 * @since 3.3
 */
public class JavaBeanObservableSetTest extends TestCase {
	private IObservableSet observableSet;
	private IBeanObservable beanObservable;
	private Bean bean;
	private PropertyDescriptor propertyDescriptor;
	private String propertyName;
	private SetChangeListener listener;

	/*
	 * (non-Javadoc)
	 * 
	 * @see junit.framework.TestCase#setUp()
	 */
	protected void setUp() throws Exception {
		bean = new Bean();
		propertyName = "set";
		propertyDescriptor = ((IBeanProperty) BeanProperties.setProperty(
				Bean.class, propertyName)).getPropertyDescriptor();

		observableSet = BeansObservables
				.observeSet(SWTObservables.getRealm(Display.getDefault()),
						bean, propertyName, Bean.class);
		beanObservable = (IBeanObservable) observableSet;
		listener = new SetChangeListener();
	}

	public void testGetObserved() throws Exception {
		assertEquals(bean, beanObservable.getObserved());
	}

	public void testGetPropertyDescriptor() throws Exception {
		assertEquals(propertyDescriptor, beanObservable.getPropertyDescriptor());
	}
	
	public void testGetElementType() throws Exception {

	public void testConstructor_RegisterListeners() throws Exception {
		bean = new Bean();

		observableSet = BeansObservables.observeSet(new CurrentRealm(true),
				bean, propertyName);
		assertFalse(bean.hasListeners(propertyName));
		ChangeEventTracker.observe(observableSet);
		assertTrue(bean.hasListeners(propertyName));

	public void testConstructor_SkipsRegisterListeners() throws Exception {
		bean = new Bean();

		observableSet = PojoObservables.observeSet(new CurrentRealm(true),
				bean, propertyName);
		assertFalse(bean.hasListeners(propertyName));
		ChangeEventTracker.observe(observableSet);
		assertFalse(bean.hasListeners(propertyName));

				int elementCount) {
			Bean bean = new Bean();
			String propertyName = "set";
			PropertyDescriptor propertyDescriptor;
			try {
				propertyDescriptor = new PropertyDescriptor(propertyName,
						Bean.class);
			} catch (IntrospectionException e) {
				throw new RuntimeException(e);
			}

			IObservableSet set = BeansObservables.observeSet(realm, bean,
					propertyName, String.class);
			for (int i = 0; i < elementCount; i++)
				set.add(createElement(set));
			return set;





import java.beans.PropertyDescriptor;

import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.core.internal.databinding.beans.BeanObservableValueDecorator;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableValue;
import org.eclipse.jface.databinding.swt.SWTObservables;
import org.eclipse.jface.tests.databinding.AbstractDefaultRealmTestCase;
import org.eclipse.swt.widgets.Display;

/**
 * @since 3.3
 */
public class BeanObservableValueDecoratorTest extends
		AbstractDefaultRealmTestCase {
	private Bean bean;
	private IObservableValue observableValue;
	private BeanObservableValueDecorator decorator;
	private PropertyDescriptor propertyDescriptor;

	/*
	 * (non-Javadoc)
	 * 
	 * @see junit.framework.TestCase#setUp()
	 */
	protected void setUp() throws Exception {
		super.setUp();

		bean = new Bean();
		propertyDescriptor = new PropertyDescriptor("value", Bean.class);
		observableValue = BeansObservables.observeValue(SWTObservables
				.getRealm(Display.getDefault()), bean, "value");
		decorator = new BeanObservableValueDecorator(observableValue,
				propertyDescriptor);
		decorator = new BeanObservableValueDecorator(
				observableValue, observableValue
						.getPropertyDescriptor());
	}

	public void testGetDelegate() throws Exception {
		assertSame(observableValue, decorator.getDecorated());
	}

	public void testGetObserved() throws Exception {
		assertSame(bean, decorator.getObserved());
	}

	public void testGetPropertyDescriptor() throws Exception {
		assertSame(propertyDescriptor, decorator.getPropertyDescriptor());
	}
}




 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 221351)
 *     Brad Reynolds - through JavaBeanObservableArrayBasedListTest.java
 *     Matthew Hall - bugs 213145, 194734
 ******************************************************************************/

package org.eclipse.core.tests.internal.databinding.beans;

import java.beans.IntrospectionException;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.beans.PropertyDescriptor;

import junit.framework.Test;
import junit.framework.TestSuite;

import org.eclipse.core.databinding.beans.BeanProperties;
import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.beans.IBeanObservable;
import org.eclipse.core.databinding.beans.IBeanProperty;
import org.eclipse.core.databinding.observable.IObservable;
import org.eclipse.core.databinding.observable.IObservableCollection;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.set.IObservableSet;
import org.eclipse.core.databinding.observable.set.SetChangeEvent;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableSet;
import org.eclipse.jface.databinding.conformance.MutableObservableSetContractTest;
import org.eclipse.jface.databinding.conformance.delegate.AbstractObservableCollectionContractDelegate;
import org.eclipse.jface.databinding.conformance.util.SetChangeEventTracker;

 */
public class JavaBeanObservableArrayBasedSetTest extends
		AbstractDefaultRealmTestCase {
	private IObservableSet set;
	private IBeanObservable beanObservable;

	private PropertyDescriptor propertyDescriptor;


		super.setUp();

		propertyName = "array";
		propertyDescriptor = ((IBeanProperty) BeanProperties.setProperty(
				Bean.class, propertyName)).getPropertyDescriptor();
		bean = new Bean(new HashSet());

		set = BeansObservables.observeSet(SWTObservables.getRealm(Display
				.getDefault()), bean, propertyName);
		beanObservable = (IBeanObservable) set;
	}

	public void testGetObserved() throws Exception {
		assertEquals(bean, beanObservable.getObserved());
	}

	public void testGetPropertyDescriptor() throws Exception {
		assertEquals(propertyDescriptor, beanObservable.getPropertyDescriptor());
	}

	public void testRegistersListenerAfterFirstListenerIsAdded()

		assertEquals("array", event.getPropertyName());
		assertTrue("old value", Arrays.equals(old, (Object[]) event
				.getOldValue()));
		assertTrue("new value", Arrays.equals(bean.getArray(), (Object[]) event
				.getNewValue()));
		assertFalse("lists are equal", Arrays.equals(bean.getArray(), old));
	}



		PropertyChangeEvent evt;

		/*
		 * (non-Javadoc)
		 * 
		 * @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent)
		 */
		public void propertyChange(PropertyChangeEvent evt) {
			count++;
			this.evt = evt;

		public IObservableCollection createObservableCollection(Realm realm,
				int elementCount) {
			String propertyName = "array";
			PropertyDescriptor propertyDescriptor;
			try {
				propertyDescriptor = new PropertyDescriptor(propertyName,
						Bean.class);
			} catch (IntrospectionException e) {
				throw new RuntimeException(e);
			}
			Object bean = new Bean(new Object[0]);

			IObservableSet list = BeansObservables.observeSet(realm, bean,
					propertyName, String.class);
			for (int i = 0; i < elementCount; i++)
				list.add(createElement(list));
			return list;





import junit.framework.TestCase;

import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.observable.set.IObservableSet;
import org.eclipse.core.internal.databinding.beans.BeanObservableSetDecorator;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableSet;
import org.eclipse.jface.databinding.swt.SWTObservables;
import org.eclipse.swt.widgets.Display;


 */
public class BeanObservableSetDecoratorTest extends TestCase {
	private PropertyDescriptor propertyDescriptor;
	private IObservableSet observableSet;
	private BeanObservableSetDecorator decorator;
	private Bean bean;

	/*
	 * (non-Javadoc)
	 * 
	 * @see junit.framework.TestCase#setUp()
	 */
	protected void setUp() throws Exception {
		super.setUp();

		bean = new Bean();
		propertyDescriptor = new PropertyDescriptor("set", Bean.class);
		observableSet = BeansObservables.observeSet(SWTObservables
				.getRealm(Display.getDefault()), bean, "set");
		decorator = new BeanObservableSetDecorator(observableSet,
				propertyDescriptor);
		decorator = new BeanObservableSetDecorator(
				observableSet, propertyDescriptor);
	}

	public void testGetDecorated() throws Exception {
		assertSame(observableSet, decorator.getDecorated());
	}

	public void testGetObserved() throws Exception {
		assertSame(bean, decorator.getObserved());
	}

	public void testGetPropertyDescriptor() throws Exception {
		assertSame(propertyDescriptor, decorator.getPropertyDescriptor());
	}
}




import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.observable.IObservable;
import org.eclipse.core.databinding.observable.IObservableCollection;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.list.IObservableList;
import org.eclipse.core.databinding.observable.list.WritableList;
import org.eclipse.core.internal.databinding.beans.BeanObservableListDecorator;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableList;
import org.eclipse.jface.databinding.conformance.MutableObservableListContractTest;
import org.eclipse.jface.databinding.conformance.delegate.AbstractObservableCollectionContractDelegate;
import org.eclipse.jface.databinding.swt.SWTObservables;

public class BeanObservableListDecoratorTest extends TestCase {
	private Bean bean;
	private PropertyDescriptor propertyDescriptor;
	private IObservableList observableList;
	private BeanObservableListDecorator decorator;

	/*
	 * (non-Javadoc)
	 * 
	 * @see junit.framework.TestCase#setUp()
	 */
	protected void setUp() throws Exception {
		super.setUp();
		
		bean = new Bean();
		propertyDescriptor = new PropertyDescriptor(
				"list", Bean.class,"getList","setList");
		observableList = BeansObservables.observeList(
				SWTObservables.getRealm(Display.getDefault()), bean, "list");
				propertyDescriptor, Bean.class);
		decorator = new BeanObservableListDecorator(observableList, propertyDescriptor);
	}

	public void testGetDelegate() throws Exception {
		assertSame(observableList, decorator.getDecorated());
	}

	public void testGetObserved() throws Exception {
		assertSame(bean, decorator.getObserved());
	}

	public void testGetPropertyDescriptor() throws Exception {
		assertSame(propertyDescriptor, decorator.getPropertyDescriptor());
	}

	public static Test suite() {




 *
 * Contributors:
 *     Brad Reynolds - initial API and implementation
 *     Matthew Hall - bugs 221351, 213145, 194734
 ******************************************************************************/

package org.eclipse.core.tests.internal.databinding.beans;

import java.beans.IntrospectionException;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.beans.PropertyDescriptor;

import junit.framework.Test;
import junit.framework.TestSuite;

import org.eclipse.core.databinding.beans.BeanProperties;
import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.beans.IBeanObservable;
import org.eclipse.core.databinding.beans.IBeanProperty;
import org.eclipse.core.databinding.beans.PojoObservables;
import org.eclipse.core.databinding.observable.IObservable;
import org.eclipse.core.databinding.observable.IObservableCollection;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.list.IObservableList;
import org.eclipse.core.databinding.observable.list.ListChangeEvent;
import org.eclipse.core.databinding.observable.list.ListDiffEntry;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableList;
import org.eclipse.jface.databinding.conformance.MutableObservableListContractTest;
import org.eclipse.jface.databinding.conformance.delegate.AbstractObservableCollectionContractDelegate;
import org.eclipse.jface.databinding.conformance.util.ChangeEventTracker;

 * @since 1.1
 */
public class JavaBeanObservableListTest extends AbstractDefaultRealmTestCase {
	private IObservableList list;
	private IBeanObservable beanObservable;

	private PropertyDescriptor propertyDescriptor;


		super.setUp();

		propertyName = "list";
		propertyDescriptor = ((IBeanProperty) BeanProperties.listProperty(
				Bean.class, propertyName)).getPropertyDescriptor();
		bean = new Bean(new ArrayList());

		list = BeansObservables.observeList(SWTObservables.getRealm(Display
				.getDefault()), bean, propertyName);
		beanObservable = (IBeanObservable) list;
	}

	public void testGetObserved() throws Exception {
		assertEquals(bean, beanObservable.getObserved());
	}

	public void testGetPropertyDescriptor() throws Exception {
		assertEquals(propertyDescriptor, beanObservable.getPropertyDescriptor());
	}

	public void testRegistersListenerAfterFirstListenerIsAdded()

	}

	public void testRemoveAll() throws Exception {
		list.addAll(Arrays.asList(new String[] { "1", "2", "3", "4" }));
		list.addAll(elements);
		list.addAll(elements);

		assertEquals(4, bean.getList().size());

		list.removeAll(Arrays.asList(new String[] { "2", "4" }));

		assertEquals(2, bean.getList().size());
		assertEquals("1", bean.getList().get(0));
		assertEquals("3", bean.getList().get(1));
	}

	public void testRemoveAllListChangeEvent() throws Exception {


	public void testConstructor_RegistersListener() throws Exception {
		Bean bean = new Bean();
		IObservableList observable = BeansObservables.observeList(Realm
				.getDefault(), bean, "list");
				new PropertyDescriptor("list", Bean.class), Bean.class);

		assertFalse(bean.hasListeners("list"));
		ChangeEventTracker.observe(observable);


	public void testConstructor_SkipsRegisterListener() throws Exception {
		Bean bean = new Bean();
		IObservableList observable = PojoObservables.observeList(Realm
				.getDefault(), bean, "list");
				new PropertyDescriptor("list", Bean.class), Bean.class, false);

		assertFalse(bean.hasListeners("list"));
		ChangeEventTracker.observe(observable);


		PropertyChangeEvent evt;

		/*
		 * (non-Javadoc)
		 * 
		 * @see java.beans.PropertyChangeListener#propertyChange(java.beans.PropertyChangeEvent)
		 */
		public void propertyChange(PropertyChangeEvent evt) {
			count++;
			this.evt = evt;

		public IObservableCollection createObservableCollection(Realm realm,
				int elementCount) {
			String propertyName = "list";
			PropertyDescriptor propertyDescriptor;
			try {
				propertyDescriptor = new PropertyDescriptor(propertyName,
						Bean.class);
			} catch (IntrospectionException e) {
				throw new RuntimeException(e);
			}
			Object bean = new Bean(new ArrayList());

			IObservableList list = BeansObservables.observeList(realm, bean,
					propertyName, String.class);
			for (int i = 0; i < elementCount; i++)
				list.add(createElement(list));
			return list;




 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Matthew Hall - bug 194734
 *******************************************************************************/

package org.eclipse.core.tests.databinding.beans;

import org.eclipse.core.databinding.beans.IBeanObservable;
import org.eclipse.core.databinding.beans.PojoObservables;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.list.IObservableList;

import org.eclipse.core.databinding.observable.set.IObservableSet;
import org.eclipse.core.databinding.observable.set.WritableSet;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableList;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableMap;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableSet;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableValue;
import org.eclipse.core.tests.internal.databinding.beans.Bean;
import org.eclipse.jface.databinding.conformance.util.ChangeEventTracker;
import org.eclipse.jface.databinding.conformance.util.CurrentRealm;

		propertyName = "value";
	}

	public void testObserveValue_ReturnsIBeanObservable()
			throws Exception {
		IObservableValue value = PojoObservables.observeValue(pojo, propertyName);

		assertNotNull(value);
		assertTrue(value instanceof IBeanObservable);
	}

	public void testObserveValue_DoesNotAttachListeners() throws Exception {

		assertFalse(pojo.hasListeners(propertyName));
	}

	public void testObservableValueWithRealm_ReturnsIBeanObservable()
			throws Exception {
		CurrentRealm realm = new CurrentRealm(true);
		IObservableValue value = PojoObservables.observeValue(realm, pojo,
				propertyName);

		assertNotNull(value);
		assertTrue(value instanceof IBeanObservable);
	}

	public void testObservableMap_ReturnsIBeanObservable()
			throws Exception {
		IObservableSet set = new WritableSet();
		set.add(new Bean());

		IObservableMap map = PojoObservables.observeMap(set, Bean.class,
				propertyName);
		assertNotNull(map);
		assertTrue(map instanceof IBeanObservable);
	}
	
	public void testObservableMap_DoesNotAttachListeners() throws Exception {

		assertEquals(2, maps.length);
	}
	
	public void testObserveListWithElementType_ReturnsIBeanObservable() throws Exception {
		IObservableList list = PojoObservables.observeList(Realm.getDefault(), pojo, "list", String.class);
		assertTrue(list instanceof IBeanObservable);
	}
	
	public void testObserveListWithElementType_DoesNotAttachListeners() throws Exception {

		assertFalse(pojo.hasListeners("list"));
	}
	
	public void testObserveList_ReturnsIBeanObservable() throws Exception {
		IObservableList observable = PojoObservables.observeList(Realm.getDefault(), pojo, "list");
		assertTrue(observable instanceof IBeanObservable);
	}
	
	public void testObserveList_DoesNotAttachListeners() throws Exception {

		assertFalse(pojo.hasListeners("list"));
	}
	
	public void testObserveSetWithElementType_ReturnsIBeanObservable() throws Exception {
		IObservableSet list = PojoObservables.observeSet(Realm.getDefault(), pojo, "set", String.class);
		assertTrue(list instanceof IBeanObservable);
	}
	
	public void testObserveSetWithElementType_DoesNotAttachListeners() throws Exception {

		assertFalse(pojo.hasListeners("set"));
	}
	
	public void testObserveSet_ReturnsIBeanObservable() throws Exception {
		IObservableSet list = PojoObservables.observeSet(Realm.getDefault(), pojo, "set");
		assertTrue(list instanceof IBeanObservable);
	}
	
	public void testObserveSet_DoesNotAttachListeners() throws Exception {




/*******************************************************************************
 * Copyright (c) 2006, 2008 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Brad Reynolds - bug 171616
 *     Matthew hall - bugs 223164, 241585
 *******************************************************************************/

package org.eclipse.core.internal.databinding.beans;

import java.beans.PropertyChangeListener;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Method;

import org.eclipse.core.databinding.beans.IBeanObservable;
import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.map.ComputedObservableMap;
import org.eclipse.core.databinding.observable.set.IObservableSet;
import org.eclipse.core.databinding.util.Policy;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;

/**
 * @since 1.0
 * 
 */
public class JavaBeanObservableMap extends ComputedObservableMap implements
		IBeanObservable {

	private PropertyDescriptor propertyDescriptor;
	
	private PropertyChangeListener elementListener = new PropertyChangeListener() {
		public void propertyChange(final java.beans.PropertyChangeEvent event) {
			if (!updating) {
				getRealm().exec(new Runnable() {
					public void run() {
						fireMapChange(Diffs.createMapDiffSingleChange(
								event.getSource(), event.getOldValue(), event
								.getNewValue()));
					}
				});
			}
		}
	};

	private ListenerSupport listenerSupport;

	private boolean updating = false;

	private boolean attachListeners;

	/**
	 * @param domain
	 * @param propertyDescriptor
	 */
	public JavaBeanObservableMap(IObservableSet domain,
			PropertyDescriptor propertyDescriptor) {
		this(domain, propertyDescriptor, true);
	}

	/**
	 * @param domain
	 * @param propertyDescriptor
	 * @param attachListeners
	 */
	public JavaBeanObservableMap(IObservableSet domain,
			PropertyDescriptor propertyDescriptor, boolean attachListeners) {
		super(domain);

		this.propertyDescriptor = propertyDescriptor;
		this.attachListeners = attachListeners;
		if (attachListeners) {
			this.listenerSupport = new ListenerSupport(elementListener,
					propertyDescriptor.getName());
		}
		init();
	}

	protected void hookListener(Object domainElement) {
		if (attachListeners && domainElement != null) {
			listenerSupport.hookListener(domainElement);
		}
	}

	protected void unhookListener(Object domainElement) {
		if (attachListeners && domainElement != null) {
			listenerSupport.unhookListener(domainElement);
		}
	}

	protected Object doGet(Object key) {
		if (key == null) {
			return null;
		}
		try {
			Method readMethod = propertyDescriptor.getReadMethod();
			if (!readMethod.isAccessible()) {
				readMethod.setAccessible(true);
			}
			return readMethod.invoke(key, new Object[0]);
		} catch (Exception e) {
			Policy.getLog().log(
					new Status(IStatus.ERROR, Policy.JFACE_DATABINDING,
							IStatus.ERROR, "cannot get value", e)); //$NON-NLS-1$
			throw new RuntimeException(e);
		}
	}

	protected Object doPut(Object key, Object value) {
		try {
			Object oldValue = get(key);
			propertyDescriptor.getWriteMethod().invoke(key,
					new Object[] { value });
			keySet().add(key);
			return oldValue;
		} catch (Exception e) {
			Policy.getLog().log(
					new Status(IStatus.ERROR, Policy.JFACE_DATABINDING,
							IStatus.ERROR, "cannot set value", e)); //$NON-NLS-1$
			throw new RuntimeException(e);
		}
	}

	/* (non-Javadoc)
	 * @see org.eclipse.core.databinding.beans.IBeanObservable#getObserved()
	 */
	public Object getObserved() {
		return keySet();
	}

	/* (non-Javadoc)
	 * @see org.eclipse.core.databinding.beans.IBeanObservable#getPropertyDescriptor()
	 */
	public PropertyDescriptor getPropertyDescriptor() {
		return propertyDescriptor;
	}
}




/*******************************************************************************
 * Copyright (c) 2006-2008 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Brad Reynolds - bug 171616
 *     Matthew Hall - bugs 208858, 221351, 213145, 223164
 *     Mike Evans - bug 217558
 *******************************************************************************/

package org.eclipse.core.internal.databinding.beans;

import java.beans.PropertyChangeListener;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Array;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

import org.eclipse.core.databinding.BindingException;
import org.eclipse.core.databinding.beans.IBeanObservable;
import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.list.ListDiffEntry;
import org.eclipse.core.databinding.observable.list.ObservableList;

/**
 * @since 1.0
 * 
 */
public class JavaBeanObservableList extends ObservableList implements
		IBeanObservable {

	private final Object object;

	private PropertyChangeListener collectionListener = new PropertyChangeListener() {
		public void propertyChange(java.beans.PropertyChangeEvent event) {
			if (!updating) {
				getRealm().exec(new Runnable() {
					public void run() {
						updateWrappedList( new ArrayList( Arrays.asList(getValues() ) ) );
					}
				});
			}
		}
	};

	private boolean updating = false;

	private PropertyDescriptor descriptor;

	private ListenerSupport collectionListenSupport;

	private boolean attachListeners;

	/**
	 * @param realm
	 * @param object
	 * @param descriptor
	 * @param elementType
	 */
	public JavaBeanObservableList(Realm realm, Object object,
			PropertyDescriptor descriptor, Class elementType) {
		this(realm, object, descriptor, elementType, true);
	}

	/**
	 * @param realm
	 * @param object
	 * @param descriptor
	 * @param elementType
	 * @param attachListeners
	 */
	public JavaBeanObservableList(Realm realm, Object object,
			PropertyDescriptor descriptor, Class elementType,
			boolean attachListeners) {

		super(realm, new ArrayList(), elementType);
		this.object = object;
		this.descriptor = descriptor;
		this.attachListeners = attachListeners;

		if (attachListeners) {
			this.collectionListenSupport = new ListenerSupport(
					collectionListener, descriptor.getName());
		}

		// initialize list without firing events
		wrappedList.addAll(Arrays.asList(getValues()));
	}

	protected void firstListenerAdded() {
		if (attachListeners) {
			collectionListenSupport.hookListener(this.object);
		}
	}

	protected void lastListenerRemoved() {
		if (collectionListenSupport != null) {
			collectionListenSupport.dispose();
		}
	}

	public synchronized void dispose() {
		super.dispose();
		lastListenerRemoved();
	}

	private Object primGetValues() {
		Exception ex = null;
		try {
			Method readMethod = descriptor.getReadMethod();
			if (!readMethod.isAccessible()) {
				readMethod.setAccessible(true);
			}
			return readMethod.invoke(object, new Object[0]);
		} catch (IllegalArgumentException e) {
			ex = e;
		} catch (IllegalAccessException e) {
			ex = e;
		} catch (InvocationTargetException e) {
			ex = e;
		}
		throw new BindingException("Could not read collection values", ex); //$NON-NLS-1$
	}

	private Object[] getValues() {
		Object[] values = null;

		Object result = primGetValues();
		if (descriptor.getPropertyType().isArray())
			values = (Object[]) result;
		else {
			// TODO add jUnit for POJO (var. SettableValue) collections
			Collection list = (Collection) result;
			if (list != null) {
				values = list.toArray();
			}
		}
		if (values == null)
			values = new Object[0];
		return values;
	}

	public Object getObserved() {
		return object;
	}

	public PropertyDescriptor getPropertyDescriptor() {
		return descriptor;
	}

	private void setValues() {
		if (descriptor.getPropertyType().isArray()) {
			Class componentType = descriptor.getPropertyType()
					.getComponentType();
			Object[] newArray = (Object[]) Array.newInstance(componentType,
					wrappedList.size());
			wrappedList.toArray(newArray);
			primSetValues(newArray);
		} else {
			// assume that it is a java.util.List
			primSetValues(new ArrayList(wrappedList));
		}
	}

	private void primSetValues(Object newValue) {
		Exception ex = null;
		try {
			Method writeMethod = descriptor.getWriteMethod();
			if (!writeMethod.isAccessible()) {
				writeMethod.setAccessible(true);
			}
			writeMethod.invoke(object, new Object[] { newValue });
			return;
		} catch (IllegalArgumentException e) {
			ex = e;
		} catch (IllegalAccessException e) {
			ex = e;
		} catch (InvocationTargetException e) {
			ex = e;
		}
		throw new BindingException("Could not write collection values", ex); //$NON-NLS-1$
	}

	public Object set(int index, Object element) {
		getterCalled();
		updating = true;
		try {
			Object oldElement = wrappedList.set(index, element);
			setValues();
			fireListChange(Diffs.createListDiff(Diffs.createListDiffEntry(
					index, false, oldElement), Diffs.createListDiffEntry(index,
					true, element)));
			return oldElement;
		} finally {
			updating = false;
		}
	}

	public Object move(int oldIndex, int newIndex) {
		getterCalled();
		updating = true;
		try {
			int size = wrappedList.size();
			if (oldIndex < 0 || oldIndex >= size)
				throw new IndexOutOfBoundsException(
						"oldIndex: " + oldIndex + ", size:" + size); //$NON-NLS-1$ //$NON-NLS-2$
			if (newIndex < 0 || newIndex >= size)
				throw new IndexOutOfBoundsException(
						"newIndex: " + newIndex + ", size:" + size); //$NON-NLS-1$ //$NON-NLS-2$
			if (oldIndex == newIndex)
				return wrappedList.get(oldIndex);
			Object element = wrappedList.remove(oldIndex);
			wrappedList.add(newIndex, element);
			setValues();
			fireListChange(Diffs.createListDiff(Diffs.createListDiffEntry(
					oldIndex, false, element), Diffs.createListDiffEntry(
					newIndex, true, element)));
			return element;
		} finally {
			updating = false;
		}
	}

	public Object remove(int index) {
		getterCalled();
		updating = true;
		try {
			Object oldElement = wrappedList.remove(index);
			setValues();
			fireListChange(Diffs.createListDiff(Diffs.createListDiffEntry(
					index, false, oldElement)));
			return oldElement;
		} finally {
			updating = false;
		}
	}

	public boolean add(Object element) {
		updating = true;
		try {
			int index = wrappedList.size();
			boolean result = wrappedList.add(element);
			setValues();
			fireListChange(Diffs.createListDiff(Diffs.createListDiffEntry(
					index, true, element)));
			return result;
		} finally {
			updating = false;
		}
	}

	public void add(int index, Object element) {
		updating = true;
		try {
			wrappedList.add(index, element);
			setValues();
			fireListChange(Diffs.createListDiff(Diffs.createListDiffEntry(
					index, true, element)));
		} finally {
			updating = false;
		}
	}

	public boolean addAll(Collection c) {
		if (c.isEmpty()) {
			return false;
		}
		updating = true;
		try {
			int index = wrappedList.size();
			boolean result = wrappedList.addAll(c);
			setValues();
			ListDiffEntry[] entries = new ListDiffEntry[c.size()];
			int i = 0;
			for (Iterator it = c.iterator(); it.hasNext();) {
				Object o = it.next();
				entries[i++] = Diffs.createListDiffEntry(index++, true, o);
			}
			fireListChange(Diffs.createListDiff(entries));
			return result;
		} finally {
			updating = false;
		}
	}

	public boolean addAll(int index, Collection c) {
		if (c.isEmpty()) {
			return false;
		}
		updating = true;
		try {
			boolean result = wrappedList.addAll(index, c);
			setValues();
			ListDiffEntry[] entries = new ListDiffEntry[c.size()];
			int i = 0;
			for (Iterator it = c.iterator(); it.hasNext();) {
				Object o = it.next();
				entries[i++] = Diffs.createListDiffEntry(index++, true, o);
			}
			fireListChange(Diffs.createListDiff(entries));
			return result;
		} finally {
			updating = false;
		}
	}

	public boolean remove(Object o) {
		getterCalled();
		int index = wrappedList.indexOf(o);
		if (index == -1) {
			return false;
		}
		updating = true;
		try {
			Object oldElement = wrappedList.remove(index);
			setValues();
			fireListChange(Diffs.createListDiff(Diffs.createListDiffEntry(
					index, false, oldElement)));
			return true;
		} finally {
			updating = false;
		}
	}

	public boolean removeAll(Collection c) {
		getterCalled();
		boolean changed = false;
		updating = true;
		try {
			List diffEntries = new ArrayList();
			for (Iterator it = c.iterator(); it.hasNext();) {
				Object o = it.next();
				int index = wrappedList.indexOf(o);
				if (index != -1) {
					changed = true;
					Object oldElement = wrappedList.remove(index);
					diffEntries.add(Diffs.createListDiffEntry(index, false,
							oldElement));
				}
			}
			if (changed) {
				setValues();
				fireListChange(Diffs
						.createListDiff((ListDiffEntry[]) diffEntries
								.toArray(new ListDiffEntry[diffEntries.size()])));
			}
			return changed;
		} finally {
			updating = false;
		}
	}

	public boolean retainAll(Collection c) {
		getterCalled();
		boolean changed = false;
		updating = true;
		try {
			List diffEntries = new ArrayList();
			int index = 0;
			for (Iterator it = wrappedList.iterator(); it.hasNext();) {
				Object o = it.next();
				boolean retain = c.contains(o);
				if (retain) {
					index++;
				} else {
					changed = true;
					it.remove();
					diffEntries.add(Diffs.createListDiffEntry(index, false, o));
				}
			}
			if (changed) {
				setValues();
				fireListChange(Diffs
						.createListDiff((ListDiffEntry[]) diffEntries
								.toArray(new ListDiffEntry[diffEntries.size()])));
			}
			return changed;
		} finally {
			updating = false;
		}
	}

	public void clear() {
		updating = true;
		try {
			List diffEntries = new ArrayList();
			for (Iterator it = wrappedList.iterator(); it.hasNext();) {
				Object o = it.next();
				diffEntries.add(Diffs.createListDiffEntry(0, false, o));
			}
			wrappedList.clear();
			setValues();
			fireListChange(Diffs.createListDiff((ListDiffEntry[]) diffEntries
					.toArray(new ListDiffEntry[diffEntries.size()])));
		} finally {
			updating = false;
		}
	}

}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 221704)
 *     Matthew Hall - bug 223164
 *******************************************************************************/

package org.eclipse.core.internal.databinding.beans;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.beans.PropertyDescriptor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import org.eclipse.core.databinding.BindingException;
import org.eclipse.core.databinding.beans.IBeanObservable;
import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.map.ObservableMap;
import org.eclipse.core.internal.databinding.Util;
import org.eclipse.core.runtime.Assert;

/**
 * @since 1.0
 * 
 */
public class JavaBeanPropertyObservableMap extends ObservableMap implements
		IBeanObservable {

	private final Object object;

	private PropertyChangeListener mapListener = new PropertyChangeListener() {
		public void propertyChange(final PropertyChangeEvent event) {
			if (!updating) {
				getRealm().exec(new Runnable() {
					public void run() {
						Map oldValue = wrappedMap;
						Map newValue = (Map) event.getNewValue();
						wrappedMap = new HashMap(newValue);
						
						fireMapChange(Diffs.computeMapDiff(oldValue, newValue));
					}
				});
			}
		}
	};

	private boolean updating = false;

	private PropertyDescriptor descriptor;

	private ListenerSupport collectionListenSupport;

	private boolean attachListeners;

	/**
	 * @param realm
	 * @param object
	 * @param descriptor
	 */
	public JavaBeanPropertyObservableMap(Realm realm, Object object,
			PropertyDescriptor descriptor) {
		this(realm, object, descriptor, true);
	}

	/**
	 * @param realm
	 * @param object
	 * @param descriptor
	 * @param attachListeners
	 */
	public JavaBeanPropertyObservableMap(Realm realm, Object object,
			PropertyDescriptor descriptor, boolean attachListeners) {
		super(realm, new HashMap());
		this.object = object;
		this.descriptor = descriptor;
		this.attachListeners = attachListeners;
		if (attachListeners) {
			this.collectionListenSupport = new ListenerSupport(mapListener,
					descriptor.getName());
		}

		wrappedMap.putAll(getMap());
	}

	protected void firstListenerAdded() {
		if (attachListeners) {
			collectionListenSupport.hookListener(this.object);
		}
	}

	protected void lastListenerRemoved() {
		if (collectionListenSupport != null) {
			collectionListenSupport.dispose();
		}
	}

	private Object primGetMap() {
		try {
			Method readMethod = descriptor.getReadMethod();
			if (!readMethod.isAccessible()) {
				readMethod.setAccessible(true);
			}
			return readMethod.invoke(object, new Object[0]);
		} catch (IllegalArgumentException e) {
		} catch (IllegalAccessException e) {
		} catch (InvocationTargetException e) {
		}
		Assert.isTrue(false, "Could not read collection values"); //$NON-NLS-1$
		return null;
	}

	private void primSetMap(Object newValue) {
		Exception ex = null;
		try {
			Method writeMethod = descriptor.getWriteMethod();
			if (!writeMethod.isAccessible()) {
				writeMethod.setAccessible(true);
			}
			writeMethod.invoke(object, new Object[] { newValue });
			return;
		} catch (IllegalArgumentException e) {
			ex = e;
		} catch (IllegalAccessException e) {
			ex = e;
		} catch (InvocationTargetException e) {
			ex = e;
		}
		throw new BindingException("Could not write collection values", ex); //$NON-NLS-1$
	}

	private Map getMap() {
		Map result = (Map) primGetMap();

		if (result == null)
			result = new HashMap();
		return result;
	}

	private void setMap() {
		primSetMap(new HashMap(wrappedMap));
	}

	public Object put(Object key, Object value) {
		checkRealm();
		updating = true;
		try {
			Object result = wrappedMap.put(key, value);
			if (!Util.equals(result, value)) {
				setMap();
				if (result == null) {
					fireMapChange(Diffs.createMapDiffSingleAdd(key, value));
				} else {
					fireMapChange(Diffs.createMapDiffSingleChange(key, result,
							value));
				}
			}
			return result;
		} finally {
			updating = false;
		}
	}

	public void putAll(Map map) {
		checkRealm();
		updating = true;
		try {
			Set addedKeys = new HashSet(map.size());
			Map changes = new HashMap(map.size());
			for (Iterator it = map.entrySet().iterator(); it.hasNext();) {
				Map.Entry entry = (Entry) it.next();
				Object key = entry.getKey();
				Object newValue = entry.getValue();
				Object oldValue = wrappedMap.put(key, newValue);
				if (oldValue == null) {
					addedKeys.add(key);
				} else if (!Util.equals(oldValue, newValue)) {
					changes.put(key, oldValue);
				}
			}
			if (!addedKeys.isEmpty() || !changes.isEmpty()) {
				setMap();
				fireMapChange(Diffs.createMapDiff(addedKeys,
						Collections.EMPTY_SET, changes.keySet(), changes,
						wrappedMap));
			}
		} finally {
			updating = false;
		}
	}

	public Object remove(Object key) {
		checkRealm();
		updating = true;
		try {
			Object result = wrappedMap.remove(key);
			if (result!=null) {
				setMap();
				fireMapChange(Diffs.createMapDiffSingleRemove(key, result));
			}
			return result;
		} finally {
			updating = false;
		}
	}

	public void clear() {
		checkRealm();
		if (wrappedMap.isEmpty())
			return;
		updating = true;
		try {
			Map oldMap = wrappedMap;
			wrappedMap = new HashMap();
			setMap();
			fireMapChange(Diffs.computeMapDiff(oldMap, Collections.EMPTY_MAP));
		} finally {
			updating = false;
		}
	}

	public Object getObserved() {
		return object;
	}

	public PropertyDescriptor getPropertyDescriptor() {
		return descriptor;
	}
}




/*******************************************************************************
 * Copyright (c) 2006-2008 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Brad Reynolds - bug 171616
 *     Matthew Hall - bug 221351, 223164
 *******************************************************************************/

package org.eclipse.core.internal.databinding.beans;

import java.beans.PropertyChangeListener;
import java.beans.PropertyDescriptor;
import java.lang.reflect.Array;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

import org.eclipse.core.databinding.BindingException;
import org.eclipse.core.databinding.beans.IBeanObservable;
import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.set.ObservableSet;
import org.eclipse.core.runtime.Assert;

/**
 * @since 1.0
 * 
 */
public class JavaBeanObservableSet extends ObservableSet implements IBeanObservable {

	private final Object object;

	private PropertyChangeListener collectionListener = new PropertyChangeListener() {
		public void propertyChange(java.beans.PropertyChangeEvent event) {
			if (!updating) {
				getRealm().exec(new Runnable() {
					public void run() {
						Set newElements = new HashSet(Arrays
								.asList(getValues()));
						Set addedElements = new HashSet(newElements);
						Set removedElements = new HashSet(wrappedSet);
						// remove all new elements from old elements to compute
						// the removed elements
						removedElements.removeAll(newElements);
						addedElements.removeAll(wrappedSet);
						wrappedSet = newElements;
						fireSetChange(Diffs.createSetDiff(addedElements,
								removedElements));
					}
				});
			}
		}
	};

	private boolean updating = false;

	private PropertyDescriptor descriptor;

	private ListenerSupport collectionListenSupport;

	private boolean attachListeners;

	/**
	 * @param realm
	 * @param object
	 * @param descriptor
	 * @param elementType
	 */
	public JavaBeanObservableSet(Realm realm, Object object,
			PropertyDescriptor descriptor, Class elementType) {
		this(realm, object, descriptor, elementType, true);
	}

	/**
	 * @param realm
	 * @param object
	 * @param descriptor
	 * @param elementType
	 * @param attachListeners
	 */
	public JavaBeanObservableSet(Realm realm, Object object,
			PropertyDescriptor descriptor, Class elementType,
			boolean attachListeners) {
		super(realm, new HashSet(), elementType);
		this.object = object;
		this.descriptor = descriptor;
		this.attachListeners = attachListeners;
		if (attachListeners) {
			this.collectionListenSupport = new ListenerSupport(
					collectionListener, descriptor.getName());
		}

		wrappedSet.addAll(Arrays.asList(getValues()));
	}

	protected void firstListenerAdded() {
		if (attachListeners) {
			collectionListenSupport.hookListener(this.object);
		}
	}

	protected void lastListenerRemoved() {
		if (collectionListenSupport != null) {
			collectionListenSupport.dispose();
		}
	}

	private Object primGetValues() {
		try {
			Method readMethod = descriptor.getReadMethod();
			if (!readMethod.isAccessible()) {
				readMethod.setAccessible(true);
			}
			return readMethod.invoke(object, new Object[0]);
		} catch (IllegalArgumentException e) {
		} catch (IllegalAccessException e) {
		} catch (InvocationTargetException e) {
		}
		Assert.isTrue(false, "Could not read collection values"); //$NON-NLS-1$
		return null;
	}

	private Object[] getValues() {
		Object[] values = null;

		Object result = primGetValues();
		if (descriptor.getPropertyType().isArray())
			values = (Object[]) result;
		else {
			// TODO add jUnit for POJO (var. SettableValue) collections
			Collection list = (Collection) result;
			if (list != null)
				values = list.toArray();
		}
		if (values == null)
			values = new Object[0];
		return values;
	}

	private void setValues() {
		if (descriptor.getPropertyType().isArray()) {
			Class componentType = descriptor.getPropertyType()
					.getComponentType();
			Object[] newArray = (Object[]) Array.newInstance(componentType,
					wrappedSet.size());
			wrappedSet.toArray(newArray);
			primSetValues(newArray);
		} else {
			// assume that it is a java.util.Set
			primSetValues(new HashSet(wrappedSet));
		}
	}

	public boolean add(Object o) {
		getterCalled();
		updating = true;
		try {
			boolean added = wrappedSet.add(o);
			if (added) {
				setValues();
				fireSetChange(Diffs.createSetDiff(Collections.singleton(o),
						Collections.EMPTY_SET));
			}
			return added;
		} finally {
			updating = false;
		}
	}

	public boolean remove(Object o) {
		getterCalled();
		updating = true;
		try {
			boolean removed = wrappedSet.remove(o);
			if (removed) {
				setValues();
				fireSetChange(Diffs.createSetDiff(Collections.EMPTY_SET,
						Collections.singleton(o)));
			}
			return removed;
		} finally {
			updating = false;
		}
	}

	public boolean addAll(Collection c) {
		getterCalled();
		updating = true;
		try {
			Set additions = new HashSet();
			for (Iterator iterator = c.iterator(); iterator.hasNext();) {
				Object element = iterator.next();
				if (wrappedSet.add(element))
					additions.add(element);
			}
			boolean changed = !additions.isEmpty();
			if (changed) {
				setValues();
				fireSetChange(Diffs.createSetDiff(additions,
						Collections.EMPTY_SET));
			}
			return changed;
		} finally {
			updating = false;
		}
	}

	public boolean removeAll(Collection c) {
		getterCalled();
		updating = true;
		try {
			Set removals = new HashSet();
			for (Iterator iterator = c.iterator(); iterator.hasNext();) {
				Object element = iterator.next();
				if (wrappedSet.remove(element))
					removals.add(element);
			}
			boolean changed = !removals.isEmpty();
			if (changed) {
				setValues();
				fireSetChange(Diffs.createSetDiff(Collections.EMPTY_SET,
						removals));
			}
			return changed;
		} finally {
			updating = false;
		}
	}

	public boolean retainAll(Collection c) {
		getterCalled();
		updating = true;
		try {
			Set removals = new HashSet();
			for (Iterator iterator = wrappedSet.iterator(); iterator.hasNext();) {
				Object element = iterator.next();
				if (!c.contains(element)) {
					iterator.remove();
					removals.add(element);
				}
			}
			boolean changed = !removals.isEmpty();
			if (changed) {
				setValues();
				fireSetChange(Diffs.createSetDiff(Collections.EMPTY_SET,
						removals));
			}
			return changed;
		} finally {
			updating = false;
		}
	}

	public void clear() {
		getterCalled();
		if (wrappedSet.isEmpty())
			return;

		updating = true;
		try {
			Set removals = new HashSet(wrappedSet);
			wrappedSet.clear();
			setValues();
			fireSetChange(Diffs.createSetDiff(Collections.EMPTY_SET, removals));
		} finally {
			updating = false;
		}
	}

	private void primSetValues(Object newValue) {
		Exception ex = null;
		try {
			Method writeMethod = descriptor.getWriteMethod();
			if (!writeMethod.isAccessible()) {
				writeMethod.setAccessible(true);
			}
			writeMethod.invoke(object, new Object[] { newValue });
			return;
		} catch (IllegalArgumentException e) {
			ex = e;
		} catch (IllegalAccessException e) {
			ex = e;
		} catch (InvocationTargetException e) {
			ex = e;
		}
		throw new BindingException("Could not write collection values", ex); //$NON-NLS-1$
	}

	public Object getObserved() {
		return object;
	}

	public PropertyDescriptor getPropertyDescriptor() {
		return descriptor;
	}
}




/*******************************************************************************
 * Copyright (c) 2005, 2008 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Brad Reynolds - bug 164653
 *     Brad Reynolds - bug 164134, 171616
 *******************************************************************************/
package org.eclipse.core.internal.databinding.beans;

import java.beans.PropertyChangeListener;
import java.beans.PropertyDescriptor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import org.eclipse.core.databinding.BindingException;
import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.beans.IBeanObservable;
import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.value.AbstractObservableValue;
import org.eclipse.core.databinding.observable.value.ValueDiff;
import org.eclipse.core.databinding.util.Policy;
import org.eclipse.core.internal.databinding.Util;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;

/**
 * @since 1.0
 * 
 */
public class JavaBeanObservableValue extends AbstractObservableValue implements IBeanObservable {
	private final Object object;
	private boolean updating = false;

	private final PropertyDescriptor propertyDescriptor;
	private ListenerSupport listenerSupport;

	private boolean attachListeners;

	/**
	 * @param realm
	 * @param object
	 * @param descriptor
	 */
	public JavaBeanObservableValue(Realm realm, Object object,
			PropertyDescriptor descriptor) {
		this(realm, object, descriptor, true);
	}

	/**
	 * @param realm
	 * @param object
	 * @param descriptor
	 * @param attachListeners
	 */
	public JavaBeanObservableValue(Realm realm, Object object,
			PropertyDescriptor descriptor, boolean attachListeners) {
		super(realm);
		this.object = object;
		this.propertyDescriptor = descriptor;
		this.attachListeners = attachListeners;
	}

	protected void firstListenerAdded() {
		if (!attachListeners) {
			return;
		}
			
		PropertyChangeListener listener = new PropertyChangeListener() {
			public void propertyChange(java.beans.PropertyChangeEvent event) {
				if (!updating) {
					final ValueDiff diff = Diffs.createValueDiff(event.getOldValue(),
											event.getNewValue());
					getRealm().exec(new Runnable(){
						public void run() {
							fireValueChange(diff);
						}});
				}
			}
		};
		
		if (listenerSupport == null) {
			listenerSupport = new ListenerSupport(listener, propertyDescriptor.getName());
		}
		
		listenerSupport.hookListener(object);
	}

	public void doSetValue(Object value) {
		updating = true;
		try {
			Object oldValue = doGetValue();
			
			if (Util.equals(oldValue, value)) {
				return;
			}
			
			Method writeMethod = propertyDescriptor.getWriteMethod();
			if (!writeMethod.isAccessible()) {
				writeMethod.setAccessible(true);
			}
			writeMethod.invoke(object, new Object[] { value });
			fireValueChange(Diffs.createValueDiff(oldValue, doGetValue()));
		} catch (InvocationTargetException e) {
			/*
			 * InvocationTargetException wraps any exception thrown by the
			 * invoked method.
			 */
			throw new RuntimeException(e.getCause());
		} catch (Exception e) {
			if (BeansObservables.DEBUG) {
				Policy
						.getLog()
						.log(
								new Status(
										IStatus.WARNING,
										Policy.JFACE_DATABINDING,
										IStatus.OK,
										"Could not change value of " + object + "." + propertyDescriptor.getName(), e)); //$NON-NLS-1$ //$NON-NLS-2$
			}
		} finally {
			updating = false;
		}
	}

	public Object doGetValue() {
		try {
			Method readMethod = propertyDescriptor.getReadMethod();
			if (readMethod == null) {
				throw new BindingException(propertyDescriptor.getName()
						+ " property does not have a read method."); //$NON-NLS-1$
			}
			if (!readMethod.isAccessible()) {
				readMethod.setAccessible(true);
			}
			return readMethod.invoke(object, null);
		} catch (InvocationTargetException e) {
			/*
			 * InvocationTargetException wraps any exception thrown by the
			 * invoked method.
			 */
			throw new RuntimeException(e.getCause());
		} catch (Exception e) {
			if (BeansObservables.DEBUG) {
				Policy
						.getLog()
						.log(
								new Status(
										IStatus.WARNING,
										Policy.JFACE_DATABINDING,
										IStatus.OK,
										"Could not read value of " + object + "." + propertyDescriptor.getName(), e)); //$NON-NLS-1$ //$NON-NLS-2$
			}
			return null;
		}
	}

	protected void lastListenerRemoved() {
		unhookListener();
	}

	private void unhookListener() {
		if (listenerSupport != null) {
			listenerSupport.dispose();
			listenerSupport = null;
		}
	}

	public Object getValueType() {
		return propertyDescriptor.getPropertyType();
	}

	public Object getObserved() {
		return object;
	}

	public PropertyDescriptor getPropertyDescriptor() {
		return propertyDescriptor;
	}

	public synchronized void dispose() {
		unhookListener();
		super.dispose();
	}
}




 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Brad Reynolds - bugs 164268, 171616, 147515
 *     Matthew Hall - bug 221704, 234686, 246625, 194734
 *     Thomas Kratz - bug 213787
 *******************************************************************************/
package org.eclipse.core.databinding.beans;

import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;

import org.eclipse.core.databinding.BindingException;
import org.eclipse.core.databinding.observable.IObservable;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.list.IObservableList;

import org.eclipse.core.databinding.observable.masterdetail.MasterDetailObservables;
import org.eclipse.core.databinding.observable.set.IObservableSet;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.core.databinding.property.IListProperty;
import org.eclipse.core.databinding.property.IMapProperty;
import org.eclipse.core.databinding.property.ISetProperty;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.databinding.property.PropertyObservables;
import org.eclipse.core.internal.databinding.beans.BeanObservableListDecorator;
import org.eclipse.core.internal.databinding.beans.BeanObservableMapDecorator;
import org.eclipse.core.internal.databinding.beans.BeanObservableSetDecorator;
import org.eclipse.core.internal.databinding.beans.BeanObservableValueDecorator;
import org.eclipse.core.internal.databinding.beans.BeanPropertyHelper;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableMap;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableSet;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableValue;
import org.eclipse.core.internal.databinding.beans.JavaBeanPropertyObservableMap;
import org.eclipse.core.runtime.Assert;

/**

	 */
	public static IObservableValue observeValue(Realm realm, Object bean,
			String propertyName) {
		IValueProperty property = BeanProperties.valueProperty(bean.getClass(),
				propertyName);
		PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
				.getPropertyDescriptor();
		return new BeanObservableValueDecorator(PropertyObservables
				.observeValue(realm, bean, property), propertyDescriptor);
	}

	/**

	 */
	public static IObservableMap observeMap(IObservableSet domain,
			Class beanClass, String propertyName) {
		IValueProperty property = BeanProperties.valueProperty(beanClass,
				propertyName);
		PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
				.getPropertyDescriptor();
		return new BeanObservableMapDecorator(PropertyObservables.observeDetailValues(
				domain, property), propertyDescriptor);
	}

	/**

	 */
	public static IObservableMap observeMap(Realm realm, Object bean,
			String propertyName) {
		IMapProperty property = BeanProperties.mapProperty(bean.getClass(),
				propertyName);
		PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
				.getPropertyDescriptor();
		return new BeanObservableMapDecorator(PropertyObservables.observeMap(
				bean, property), propertyDescriptor);
	}

	/**

		return observeMap(Realm.getDefault(), bean, propertyName);
	}

	/*package*/ static PropertyDescriptor getPropertyDescriptor(Class beanClass,
			String propertyName) {
		BeanInfo beanInfo;
		try {
			beanInfo = Introspector.getBeanInfo(beanClass);
		} catch (IntrospectionException e) {
			// cannot introspect, give up
			return null;
		}
		PropertyDescriptor[] propertyDescriptors = beanInfo
				.getPropertyDescriptors();
		for (int i = 0; i < propertyDescriptors.length; i++) {
			PropertyDescriptor descriptor = propertyDescriptors[i];
			if (descriptor.getName().equals(propertyName)) {
				return descriptor;
			}
		}
		throw new BindingException(
				"Could not find property with name " + propertyName + " in class " + beanClass); //$NON-NLS-1$ //$NON-NLS-2$
	}

	/**
	 * Returns an array of observable maps in the default realm tracking the
	 * current values of the named propertys for the beans in the given set.

	 */
	public static IObservableList observeList(Realm realm, Object bean,
			String propertyName, Class elementType) {
		IListProperty property = BeanProperties.listProperty(bean.getClass(),
				propertyName, elementType);
		PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
				.getPropertyDescriptor();
		return new BeanObservableListDecorator(PropertyObservables.observeList(
				realm, bean, property), propertyDescriptor);
	}

	/**


		IObservableValue value = MasterDetailObservables.detailValue(master,
				valueFactory(realm, propertyName), propertyType);
		return new BeanObservableValueDecorator(value, BeanPropertyHelper
				.getValueTypePropertyDescriptor(master, propertyName));

		return decorator;
	}

	/**

		Assert.isNotNull(masterType, "masterType cannot be null"); //$NON-NLS-1$
		IObservableValue value = MasterDetailObservables.detailValue(master,
				valueFactory(realm, propertyName), propertyType);
		return new BeanObservableValueDecorator(value, BeanPropertyHelper
				.getPropertyDescriptor(masterType, propertyName));

		return decorator;
	}

	/**

		IObservableList observableList = MasterDetailObservables.detailList(
				master, listFactory(realm, propertyName, propertyType),
				propertyType);
		return new BeanObservableListDecorator(observableList,
				BeanPropertyHelper.getValueTypePropertyDescriptor(master,
						propertyName));

		return decorator;
	}

	/**

		IObservableSet observableSet = MasterDetailObservables.detailSet(
				master, setFactory(realm, propertyName, propertyType),
				propertyType);
		return new BeanObservableSetDecorator(observableSet, BeanPropertyHelper
				.getValueTypePropertyDescriptor(master, propertyName));
						propertyName));

		return decorator;
	}

	/**

			IObservableValue master, String propertyName) {
		IObservableMap observableMap = MasterDetailObservables.detailMap(
				master, mapPropertyFactory(realm, propertyName));
		return new BeanObservableMapDecorator(observableMap, BeanPropertyHelper
				.getValueTypePropertyDescriptor(master, propertyName));
						propertyName));
		return decorator;
	}

	/**

	 */
	public static IObservableSet observeSet(Realm realm, Object bean,
			String propertyName, Class elementType) {
		ISetProperty property = BeanProperties.setProperty(bean.getClass(),
				propertyName, elementType);
		PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
				.getPropertyDescriptor();
		return new BeanObservableSetDecorator(PropertyObservables.observeSet(
				realm, bean, property), propertyDescriptor);
	}

	/**

	public static IObservableFactory mapPropertyFactory(String propertyName) {
		return mapPropertyFactory(Realm.getDefault(), propertyName);
	}

	/**
	 * @param elementType
	 *            can be <code>null</code>
	 * @param propertyDescriptor
	 * @return type of the items in a collection/array property
	 */
	/*package*/ static Class getCollectionElementType(Class elementType,
			PropertyDescriptor propertyDescriptor) {
		if (elementType == null) {
			Class propertyType = propertyDescriptor.getPropertyType();
			elementType = propertyType.isArray() ? propertyType
					.getComponentType() : Object.class;
		}

		return elementType;
	}

	/**
	 * @param observable
	 * @param propertyName
	 * @return property descriptor or <code>null</code>
	 */
	/* package*/ static PropertyDescriptor getValueTypePropertyDescriptor(
			IObservableValue observable, String propertyName) {
		return (observable.getValueType() != null) ? getPropertyDescriptor(
				(Class) observable.getValueType(), propertyName) : null;
	}
}




 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     Matthew Hall - bugs 221704, 234686, 246625, 194734
 *******************************************************************************/

package org.eclipse.core.databinding.beans;

import org.eclipse.core.databinding.observable.masterdetail.MasterDetailObservables;
import org.eclipse.core.databinding.observable.set.IObservableSet;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.core.databinding.property.IListProperty;
import org.eclipse.core.databinding.property.IMapProperty;
import org.eclipse.core.databinding.property.ISetProperty;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.databinding.property.PropertyObservables;
import org.eclipse.core.internal.databinding.beans.BeanObservableListDecorator;
import org.eclipse.core.internal.databinding.beans.BeanObservableMapDecorator;
import org.eclipse.core.internal.databinding.beans.BeanObservableSetDecorator;
import org.eclipse.core.internal.databinding.beans.BeanObservableValueDecorator;
import org.eclipse.core.internal.databinding.beans.BeanPropertyHelper;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableMap;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableSet;
import org.eclipse.core.internal.databinding.beans.JavaBeanObservableValue;
import org.eclipse.core.internal.databinding.beans.JavaBeanPropertyObservableMap;

/**
 * A factory for creating observable objects for POJOs (plain old java objects)

	 */
	public static IObservableValue observeValue(Realm realm, Object pojo,
			String propertyName) {
		IValueProperty property = PojoProperties.valueProperty(pojo.getClass(),
				propertyName);
		PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
				.getPropertyDescriptor();
		return new BeanObservableValueDecorator(PropertyObservables
				.observeValue(realm, pojo, property), propertyDescriptor);
	}

	/**

	 */
	public static IObservableMap observeMap(IObservableSet domain,
			Class pojoClass, String propertyName) {
		IValueProperty property = PojoProperties.valueProperty(pojoClass,
				propertyName);
		PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
				.getPropertyDescriptor();
		return new BeanObservableMapDecorator(PropertyObservables.observeDetailValues(
				domain, property), propertyDescriptor);
	}

	/**

	 */
	public static IObservableMap observeMap(Realm realm, Object pojo,
			String propertyName) {
		IMapProperty property = PojoProperties.mapProperty(pojo.getClass(),
				propertyName);
		PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
				.getPropertyDescriptor();
		return new BeanObservableMapDecorator(PropertyObservables.observeMap(
				pojo, property), propertyDescriptor);
	}

	/**

	 */
	public static IObservableList observeList(Realm realm, Object pojo,
			String propertyName, Class elementType) {
		IListProperty property = PojoProperties.listProperty(pojo.getClass(),
				propertyName, elementType);
		PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
				.getPropertyDescriptor();
		return new BeanObservableListDecorator(PropertyObservables.observeList(
				realm, pojo, property), propertyDescriptor);
				elementType, false);
	}

	/**

	 */
	public static IObservableSet observeSet(Realm realm, Object pojo,
			String propertyName, Class elementType) {
		ISetProperty property = PojoProperties.setProperty(pojo.getClass(),
				propertyName, elementType);
		PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
				.getPropertyDescriptor();
		return new BeanObservableSetDecorator(PropertyObservables.observeSet(
				realm, pojo, property), propertyDescriptor);
				elementType, false);
	}

	/**


		IObservableValue value = MasterDetailObservables.detailValue(master,
				valueFactory(realm, propertyName), propertyType);
		return new BeanObservableValueDecorator(value, BeanPropertyHelper
				.getValueTypePropertyDescriptor(master, propertyName));
						propertyName));

		return decorator;
	}

	/**

		IObservableList observableList = MasterDetailObservables.detailList(
				master, listFactory(realm, propertyName, propertyType),
				propertyType);
		return new BeanObservableListDecorator(observableList,
				BeanPropertyHelper.getValueTypePropertyDescriptor(master,
						propertyName));

		return decorator;
	}

	/**

		IObservableSet observableSet = MasterDetailObservables.detailSet(
				master, setFactory(realm, propertyName, propertyType),
				propertyType);
		return new BeanObservableSetDecorator(observableSet, BeanPropertyHelper
				.getValueTypePropertyDescriptor(master, propertyName));
						master, propertyName));

		return decorator;
	}

	/**

			IObservableValue master, String propertyName) {
		IObservableMap observableMap = MasterDetailObservables.detailMap(
				master, mapPropertyFactory(realm, propertyName));
		return new BeanObservableMapDecorator(observableMap, BeanPropertyHelper
				.getValueTypePropertyDescriptor(master, propertyName));
						master, propertyName));
		return decorator;
	}

	/**




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.beans;

import java.beans.PropertyDescriptor;

import org.eclipse.core.databinding.property.IProperty;

/**
 * Provides access to details of bean properties.
 * 
 * @since 1.2
 */
public interface IBeanProperty extends IProperty {
	/**
	 * Returns the property descriptor of the bean property being observed
	 * 
	 * @return the property descriptor of the bean property being observed
	 */
	public PropertyDescriptor getPropertyDescriptor();
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.beans;

import java.beans.PropertyDescriptor;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import org.eclipse.core.databinding.beans.IBeanProperty;
import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.property.BasicMapProperty;
import org.eclipse.core.databinding.property.IMapPropertyChangeListener;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.MapPropertyChangeEvent;

/**
 * @since 3.3
 * 
 */
public class BeanMapProperty extends BasicMapProperty implements IBeanProperty {
	private final PropertyDescriptor propertyDescriptor;
	private final boolean attachListener;

	/**
	 * @param propertyDescriptor
	 * @param attachListener
	 */
	public BeanMapProperty(PropertyDescriptor propertyDescriptor,
			boolean attachListener) {
		this.propertyDescriptor = propertyDescriptor;
		this.attachListener = attachListener;
	}

	public PropertyDescriptor getPropertyDescriptor() {
		return propertyDescriptor;
	}

	public Map getMap(Object source) {
		return source == null ? Collections.EMPTY_MAP
				: asMap(BeanPropertyHelper.getProperty(source,
						propertyDescriptor));
	}

	private static Map asMap(Object propertyValue) {
		if (propertyValue == null)
			return new HashMap();
		return (Map) propertyValue;
	}

	protected void setMap(Object source, Map map) {
		if (source != null) {
			BeanPropertyHelper.setProperty(source, propertyDescriptor, map);
		}
	}

	public IPropertyChangeListener adaptListener(
			IMapPropertyChangeListener listener) {
		return attachListener ? new ListenerAdaptor(listener) : null;
	}

	public void addPropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		if (attachListener && source != null) {
			((ListenerAdaptor) listener).addListenerTo(source);
		}
	}

	public void removePropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		if (attachListener && source != null) {
			((ListenerAdaptor) listener).removeListenerFrom(source);
		}
	}

	private class ListenerAdaptor extends BeanPropertyChangeListener {
		private final IMapPropertyChangeListener wrapped;

		ListenerAdaptor(IMapPropertyChangeListener wrapped) {
			super(propertyDescriptor);
			this.wrapped = wrapped;
		}

		protected void handlePropertyChange(Object source, Object oldValue,
				Object newValue) {
			wrapped.handleMapPropertyChange(new MapPropertyChangeEvent(source,
					BeanMapProperty.this, Diffs.computeMapDiff(asMap(oldValue),
							asMap(newValue))));
		}
	}
}




/*******************************************************************************
 * Copyright (c) 2008 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 ******************************************************************************/

package org.eclipse.core.internal.databinding.beans;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.beans.PropertyDescriptor;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;

import org.eclipse.core.databinding.property.IPropertyChangeListener;

/**
 * @since 3.3
 * 
 */
public abstract class BeanPropertyChangeListener implements
		IPropertyChangeListener, PropertyChangeListener {
	private final PropertyDescriptor propertyDescriptor;

	private ListenerSupport listenerSupport;
	private Map sourceToCached = Collections.synchronizedMap(new HashMap());

	protected BeanPropertyChangeListener(PropertyDescriptor propertyDescriptor) {
		this.propertyDescriptor = propertyDescriptor;
	}

	public final void propertyChange(PropertyChangeEvent evt) {
		Object source = evt.getSource();
		Object oldValue = evt.getOldValue();
		Object newValue = evt.getNewValue();
		if (oldValue == null && newValue == null) {
			// Obscure condition indicating new and old
			// values are unknown
			oldValue = sourceToCached.get(source);
			newValue = BeanPropertyHelper.getProperty(source,
					propertyDescriptor);
		}
		sourceToCached.put(source, newValue);
		handlePropertyChange(source, oldValue, newValue);
	}

	protected abstract void handlePropertyChange(Object source,
			Object oldValue, Object newValue);

	private void initListenerSupport() {
		if (listenerSupport == null) {
			synchronized (this) {
				if (listenerSupport == null) {
					listenerSupport = new ListenerSupport(this,
							propertyDescriptor.getName());
				}
			}
		}
	}

	protected void addListenerTo(Object source) {
		initListenerSupport();
		listenerSupport.hookListener(source);
		sourceToCached.put(source, BeanPropertyHelper.getProperty(source,
				propertyDescriptor));
	}

	protected void removeListenerFrom(Object source) {
		if (listenerSupport != null) {
			listenerSupport.unhookListener(source);
			sourceToCached.remove(source);
		}
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.beans;

import java.beans.PropertyDescriptor;

import org.eclipse.core.databinding.beans.IBeanProperty;
import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.IValuePropertyChangeListener;
import org.eclipse.core.databinding.property.ValueProperty;
import org.eclipse.core.databinding.property.ValuePropertyChangeEvent;

/**
 * @since 3.3
 * 
 */
public class BeanValueProperty extends ValueProperty implements IBeanProperty {
	private final PropertyDescriptor propertyDescriptor;
	private final Class valueType;
	private final boolean attachListener;

	/**
	 * @param propertyDescriptor
	 * @param valueType
	 * @param attachListener
	 */
	public BeanValueProperty(PropertyDescriptor propertyDescriptor,
			Class valueType, boolean attachListener) {
		this.propertyDescriptor = propertyDescriptor;
		this.valueType = valueType == null ? propertyDescriptor
				.getPropertyType() : valueType;
		this.attachListener = attachListener;
	}

	public PropertyDescriptor getPropertyDescriptor() {
		return propertyDescriptor;
	}

	public Object getValueType() {
		return valueType;
	}

	public Object getValue(Object source) {
		return source == null ? null : BeanPropertyHelper.getProperty(source,
				propertyDescriptor);
	}

	public void setValue(Object source, Object value) {
		if (source != null) {
			BeanPropertyHelper.setProperty(source, propertyDescriptor, value);
		}
	}

	public IPropertyChangeListener adaptListener(
			IValuePropertyChangeListener listener) {
		return attachListener ? new ListenerAdaptor(listener) : null;
	}

	public void addPropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		if (attachListener && source != null) {
			((ListenerAdaptor) listener).addListenerTo(source);
		}
	}

	public void removePropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		if (attachListener && source != null) {
			((ListenerAdaptor) listener).removeListenerFrom(source);
		}
	}

	private class ListenerAdaptor extends BeanPropertyChangeListener {
		private final IValuePropertyChangeListener wrapped;

		ListenerAdaptor(IValuePropertyChangeListener listener) {
			super(propertyDescriptor);
			this.wrapped = listener;
		}

		protected void handlePropertyChange(Object source, Object oldValue,
				Object newValue) {
			wrapped.handleValuePropertyChange(new ValuePropertyChangeEvent(
					source, BeanValueProperty.this, Diffs.createValueDiff(
							oldValue, newValue)));
		}
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.beans;

import java.beans.PropertyChangeEvent;

import org.eclipse.core.databinding.property.IListProperty;
import org.eclipse.core.databinding.property.IMapProperty;
import org.eclipse.core.databinding.property.ISetProperty;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.internal.databinding.beans.BeanListProperty;
import org.eclipse.core.internal.databinding.beans.BeanMapProperty;
import org.eclipse.core.internal.databinding.beans.BeanPropertyHelper;
import org.eclipse.core.internal.databinding.beans.BeanSetProperty;
import org.eclipse.core.internal.databinding.beans.BeanValueProperty;

/**
 * A factory for creating properties for POJOs (plain old java objects) that
 * conform to idea of an object with getters and setters but does not provide
 * {@link PropertyChangeEvent property change events} on change. This factory is
 * identical to {@link BeanProperties} except for this fact.
 * 
 * @since 1.2
 */
public class PojoProperties {
	/**
	 * Returns a value property for the given property name of the given bean
	 * class.
	 * 
	 * @param beanClass
	 *            the bean class
	 * @param propertyName
	 *            the property name
	 * @return a value property for the given property name of the given bean
	 *         class.
	 */
	public static IValueProperty valueProperty(Class beanClass,
			String propertyName) {
		return valueProperty(beanClass, propertyName, null);
	}

	/**
	 * Returns a value property for the given property name of the given bean
	 * class.
	 * 
	 * @param beanClass
	 *            the bean class
	 * @param propertyName
	 *            the property name
	 * @param valueType
	 *            the value type of the returned value property
	 * @return a value property for the given property name of the given bean
	 *         class.
	 */
	public static IValueProperty valueProperty(Class beanClass,
			String propertyName, Class valueType) {
		return new BeanValueProperty(BeanPropertyHelper.getPropertyDescriptor(
				beanClass, propertyName), valueType, false);
	}

	/**
	 * Returns a set property for the given property name of the given bean
	 * class.
	 * 
	 * @param beanClass
	 *            the bean class
	 * @param propertyName
	 *            the property name
	 * @return a set property for the given property name of the given bean
	 *         class.
	 */
	public static ISetProperty setProperty(Class beanClass, String propertyName) {
		return setProperty(beanClass, propertyName, null);
	}

	/**
	 * Returns a set property for the given property name of the given bean
	 * class.
	 * 
	 * @param beanClass
	 *            the bean class
	 * @param propertyName
	 *            the property name
	 * @param elementType
	 *            the element type of the returned set property
	 * @return a set property for the given property name of the given bean
	 *         class.
	 */
	public static ISetProperty setProperty(Class beanClass,
			String propertyName, Class elementType) {
		return new BeanSetProperty(BeanPropertyHelper.getPropertyDescriptor(
				beanClass, propertyName), elementType, false);
	}

	/**
	 * Returns a list property for the given property name of the given bean
	 * class.
	 * 
	 * @param beanClass
	 *            the bean class
	 * @param propertyName
	 *            the property name
	 * @return a list property for the given property name of the given bean
	 *         class.
	 */
	public static IListProperty listProperty(Class beanClass,
			String propertyName) {
		return listProperty(beanClass, propertyName, null);
	}

	/**
	 * Returns a list property for the given property name of the given bean
	 * class.
	 * 
	 * @param beanClass
	 *            the bean class
	 * @param propertyName
	 *            the property name
	 * @param elementType
	 *            the element type of the returned list property
	 * @return a list property for the given property name of the given bean
	 *         class.
	 */
	public static IListProperty listProperty(Class beanClass,
			String propertyName, Class elementType) {
		return new BeanListProperty(BeanPropertyHelper.getPropertyDescriptor(
				beanClass, propertyName), elementType, false);
	}

	/**
	 * Returns a map property for the given property name of the given bean
	 * class.
	 * 
	 * @param beanClass
	 *            the bean class
	 * @param propertyName
	 *            the property name
	 * @return a map property for the given property name of the given bean
	 *         class.
	 */
	public static IMapProperty mapProperty(Class beanClass, String propertyName) {
		return new BeanMapProperty(BeanPropertyHelper.getPropertyDescriptor(
				beanClass, propertyName), false);
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.beans;

import java.beans.PropertyDescriptor;
import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import org.eclipse.core.databinding.beans.IBeanProperty;
import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.property.BasicListProperty;
import org.eclipse.core.databinding.property.IListPropertyChangeListener;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.ListPropertyChangeEvent;

/**
 * @since 3.3
 * 
 */
public class BeanListProperty extends BasicListProperty implements
		IBeanProperty {
	private final PropertyDescriptor propertyDescriptor;
	private final Class elementType;
	private final boolean attachListener;

	/**
	 * @param propertyDescriptor
	 * @param elementType
	 * @param attachListener
	 */
	public BeanListProperty(PropertyDescriptor propertyDescriptor,
			Class elementType, boolean attachListener) {
		this.propertyDescriptor = propertyDescriptor;
		this.elementType = elementType == null ? BeanPropertyHelper
				.getCollectionPropertyElementType(propertyDescriptor)
				: elementType;
		this.attachListener = attachListener;
	}

	public PropertyDescriptor getPropertyDescriptor() {
		return propertyDescriptor;
	}

	public Object getElementType() {
		return elementType;
	}

	public List getList(Object source) {
		return source == null ? Collections.EMPTY_LIST
				: asList(BeanPropertyHelper.getProperty(source,
						propertyDescriptor));
	}

	private List asList(Object propertyValue) {
		if (propertyValue == null)
			return new ArrayList();
		if (propertyDescriptor.getPropertyType().isArray())
			return new ArrayList(Arrays.asList((Object[]) propertyValue));
		return (List) propertyValue;
	}

	protected void setList(Object source, List list) {
		if (source != null) {
			BeanPropertyHelper.setProperty(source, propertyDescriptor,
					convertListToBeanPropertyType(list));
		}
	}

	private Object convertListToBeanPropertyType(List list) {
		Object propertyValue = list;
		if (propertyDescriptor.getPropertyType().isArray()) {
			Class componentType = propertyDescriptor.getPropertyType()
					.getComponentType();
			Object[] array = (Object[]) Array.newInstance(componentType, list
					.size());
			list.toArray(array);
			propertyValue = array;
		}
		return propertyValue;
	}

	public IPropertyChangeListener adaptListener(
			IListPropertyChangeListener listener) {
		return attachListener ? new ListenerAdaptor(listener) : null;
	}

	public void addPropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		if (attachListener && source != null) {
			((ListenerAdaptor) listener).addListenerTo(source);
		}
	}

	public void removePropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		if (attachListener && source != null) {
			((ListenerAdaptor) listener).removeListenerFrom(source);
		}
	}

	private class ListenerAdaptor extends BeanPropertyChangeListener {
		private final IListPropertyChangeListener wrapped;

		ListenerAdaptor(IListPropertyChangeListener wrapped) {
			super(propertyDescriptor);
			this.wrapped = wrapped;
		}

		protected void handlePropertyChange(Object source, Object oldValue,
				Object newValue) {
			wrapped.handleListPropertyChange(new ListPropertyChangeEvent(
					source, BeanListProperty.this, Diffs.computeListDiff(
							asList(oldValue), asList(newValue))));
		}
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.beans;

import java.beans.PropertyDescriptor;
import java.lang.reflect.Array;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

import org.eclipse.core.databinding.beans.IBeanProperty;
import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.property.BasicSetProperty;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.ISetPropertyChangeListener;
import org.eclipse.core.databinding.property.SetPropertyChangeEvent;

/**
 * @since 3.3
 * 
 */
public class BeanSetProperty extends BasicSetProperty implements IBeanProperty {
	private final PropertyDescriptor propertyDescriptor;
	private final Class elementType;
	private final boolean attachListener;

	/**
	 * @param propertyDescriptor
	 * @param elementType
	 * @param attachListener
	 */
	public BeanSetProperty(PropertyDescriptor propertyDescriptor,
			Class elementType, boolean attachListener) {
		this.propertyDescriptor = propertyDescriptor;
		this.elementType = elementType == null ? BeanPropertyHelper
				.getCollectionPropertyElementType(propertyDescriptor)
				: elementType;
		this.attachListener = attachListener;
	}

	public PropertyDescriptor getPropertyDescriptor() {
		return propertyDescriptor;
	}

	public Object getElementType() {
		return elementType;
	}

	public Set getSet(Object source) {
		return source == null ? Collections.EMPTY_SET
				: asSet(BeanPropertyHelper.getProperty(source,
						propertyDescriptor));
	}

	private Set asSet(Object propertyValue) {
		if (propertyValue == null)
			return Collections.EMPTY_SET;
		if (propertyDescriptor.getPropertyType().isArray())
			return new HashSet(Arrays.asList((Object[]) propertyValue));
		return (Set) propertyValue;
	}

	protected void setSet(Object source, Set set) {
		if (source != null) {
			BeanPropertyHelper.setProperty(source, propertyDescriptor,
					convertSetToBeanPropertyType(set));
		}
	}

	private Object convertSetToBeanPropertyType(Set set) {
		Object propertyValue = set;
		if (propertyDescriptor.getPropertyType().isArray()) {
			Class componentType = propertyDescriptor.getPropertyType()
					.getComponentType();
			Object[] array = (Object[]) Array.newInstance(componentType, set
					.size());
			propertyValue = set.toArray(array);
		}
		return propertyValue;
	}

	public IPropertyChangeListener adaptListener(
			ISetPropertyChangeListener listener) {
		return attachListener ? new ListenerAdaptor(listener) : null;
	}

	public void addPropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		if (attachListener && source != null) {
			((ListenerAdaptor) listener).addListenerTo(source);
		}
	}

	public void removePropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		if (attachListener && source != null) {
			((ListenerAdaptor) listener).removeListenerFrom(source);
		}
	}

	private class ListenerAdaptor extends BeanPropertyChangeListener {
		private final ISetPropertyChangeListener wrapped;

		ListenerAdaptor(ISetPropertyChangeListener wrapped) {
			super(propertyDescriptor);
			this.wrapped = wrapped;
		}

		protected void handlePropertyChange(Object source, Object oldValue,
				Object newValue) {
			wrapped.handleSetPropertyChange(new SetPropertyChangeEvent(source,
					BeanSetProperty.this, Diffs.computeSetDiff(asSet(oldValue),
							asSet(newValue))));
		}
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.beans;

import org.eclipse.core.databinding.property.IListProperty;
import org.eclipse.core.databinding.property.IMapProperty;
import org.eclipse.core.databinding.property.ISetProperty;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.internal.databinding.beans.BeanListProperty;
import org.eclipse.core.internal.databinding.beans.BeanMapProperty;
import org.eclipse.core.internal.databinding.beans.BeanPropertyHelper;
import org.eclipse.core.internal.databinding.beans.BeanSetProperty;
import org.eclipse.core.internal.databinding.beans.BeanValueProperty;

/**
 * A factory for creating properties for Java objects that conform to the <a
 * href="http://java.sun.com/products/javabeans/docs/spec.html">JavaBean
 * specification</a> for bound properties.
 * 
 * @since 1.2
 */
public class BeanProperties {
	/**
	 * Returns a value property for the given property name of the given bean
	 * class.
	 * 
	 * @param beanClass
	 *            the bean class
	 * @param propertyName
	 *            the property name
	 * @return a value property for the given property name of the given bean
	 *         class.
	 */
	public static IValueProperty valueProperty(Class beanClass,
			String propertyName) {
		return valueProperty(beanClass, propertyName, null);
	}

	/**
	 * Returns a value property for the given property name of the given bean
	 * class.
	 * 
	 * @param beanClass
	 *            the bean class
	 * @param propertyName
	 *            the property name
	 * @param valueType
	 *            the value type of the returned value property
	 * @return a value property for the given property name of the given bean
	 *         class.
	 */
	public static IValueProperty valueProperty(Class beanClass,
			String propertyName, Class valueType) {
		return new BeanValueProperty(BeanPropertyHelper.getPropertyDescriptor(
				beanClass, propertyName), valueType, true);
	}

	/**
	 * Returns a set property for the given property name of the given bean
	 * class.
	 * 
	 * @param beanClass
	 *            the bean class
	 * @param propertyName
	 *            the property name
	 * @return a set property for the given property name of the given bean
	 *         class.
	 */
	public static ISetProperty setProperty(Class beanClass, String propertyName) {
		return setProperty(beanClass, propertyName, null);
	}

	/**
	 * Returns a set property for the given property name of the given bean
	 * class.
	 * 
	 * @param beanClass
	 *            the bean class
	 * @param propertyName
	 *            the property name
	 * @param elementType
	 *            the element type of the returned set property
	 * @return a set property for the given property name of the given bean
	 *         class.
	 */
	public static ISetProperty setProperty(Class beanClass,
			String propertyName, Class elementType) {
		return new BeanSetProperty(BeanPropertyHelper.getPropertyDescriptor(
				beanClass, propertyName), elementType, true);
	}

	/**
	 * Returns a list property for the given property name of the given bean
	 * class.
	 * 
	 * @param beanClass
	 *            the bean class
	 * @param propertyName
	 *            the property name
	 * @return a list property for the given property name of the given bean
	 *         class.
	 */
	public static IListProperty listProperty(Class beanClass,
			String propertyName) {
		return listProperty(beanClass, propertyName, null);
	}

	/**
	 * Returns a list property for the given property name of the given bean
	 * class.
	 * 
	 * @param beanClass
	 *            the bean class
	 * @param propertyName
	 *            the property name
	 * @param elementType
	 *            the element type of the returned list property
	 * @return a list property for the given property name of the given bean
	 *         class.
	 */
	public static IListProperty listProperty(Class beanClass,
			String propertyName, Class elementType) {
		return new BeanListProperty(BeanPropertyHelper.getPropertyDescriptor(
				beanClass, propertyName), elementType, true);
	}

	/**
	 * Returns a map property for the given property name of the given bean
	 * class.
	 * 
	 * @param beanClass
	 *            the bean class
	 * @param propertyName
	 *            the property name
	 * @return a map property for the given property name of the given bean
	 *         class.
	 */
	public static IMapProperty mapProperty(Class beanClass, String propertyName) {
		return new BeanMapProperty(BeanPropertyHelper.getPropertyDescriptor(
				beanClass, propertyName), true);
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.beans;

import java.beans.BeanInfo;
import java.beans.IntrospectionException;
import java.beans.Introspector;
import java.beans.PropertyDescriptor;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

import org.eclipse.core.databinding.BindingException;
import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.core.databinding.util.Policy;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;

/**
 * @since 1.2
 * 
 */
public class BeanPropertyHelper {
	/**
	 * Sets the contents of the given property on the given source object to the
	 * given value.
	 * 
	 * @param source
	 *            the source object which has the property being updated
	 * @param propertyDescriptor
	 *            the property being changed
	 * @param value
	 *            the new value of the property
	 */
	public static void setProperty(Object source,
			PropertyDescriptor propertyDescriptor, Object value) {
		try {
			Method writeMethod = propertyDescriptor.getWriteMethod();
			if (!writeMethod.isAccessible()) {
				writeMethod.setAccessible(true);
			}
			writeMethod.invoke(source, new Object[] { value });
		} catch (InvocationTargetException e) {
			/*
			 * InvocationTargetException wraps any exception thrown by the
			 * invoked method.
			 */
			throw new RuntimeException(e.getCause());
		} catch (Exception e) {
			if (BeansObservables.DEBUG) {
				Policy
						.getLog()
						.log(
								new Status(
										IStatus.WARNING,
										Policy.JFACE_DATABINDING,
										IStatus.OK,
										"Could not change value of " + source + "." + propertyDescriptor.getName(), e)); //$NON-NLS-1$ //$NON-NLS-2$
			}
		}
	}

	/**
	 * Returns the contents of the given property for the given bean.
	 * 
	 * @param source
	 *            the source bean
	 * @param propertyDescriptor
	 *            the property to retrieve
	 * @return the contents of the given property for the given bean.
	 */
	public static Object getProperty(Object source,
			PropertyDescriptor propertyDescriptor) {
		try {
			Method readMethod = propertyDescriptor.getReadMethod();
			if (readMethod == null) {
				throw new BindingException(propertyDescriptor.getName()
						+ " property does not have a read method."); //$NON-NLS-1$
			}
			if (!readMethod.isAccessible()) {
				readMethod.setAccessible(true);
			}
			return readMethod.invoke(source, null);
		} catch (InvocationTargetException e) {
			/*
			 * InvocationTargetException wraps any exception thrown by the
			 * invoked method.
			 */
			throw new RuntimeException(e.getCause());
		} catch (Exception e) {
			if (BeansObservables.DEBUG) {
				Policy
						.getLog()
						.log(
								new Status(
										IStatus.WARNING,
										Policy.JFACE_DATABINDING,
										IStatus.OK,
										"Could not read value of " + source + "." + propertyDescriptor.getName(), e)); //$NON-NLS-1$ //$NON-NLS-2$
			}
			return null;
		}
	}

	/**
	 * Returns the element type of the given collection-typed property for the
	 * given bean.
	 * 
	 * @param descriptor
	 *            the property being inspected
	 * @return the element type of the given collection-typed property if it is
	 *         an array property, or Object.class otherwise.
	 */
	public static Class getCollectionPropertyElementType(
			PropertyDescriptor descriptor) {
		Class propertyType = descriptor.getPropertyType();
		return propertyType.isArray() ? propertyType.getComponentType()
				: Object.class;
	}

	/**
	 * @param beanClass
	 * @param propertyName
	 * @return the PropertyDescriptor for the named property on the given bean
	 *         class
	 */
	public static PropertyDescriptor getPropertyDescriptor(Class beanClass,
			String propertyName) {
		BeanInfo beanInfo;
		try {
			beanInfo = Introspector.getBeanInfo(beanClass);
		} catch (IntrospectionException e) {
			// cannot introspect, give up
			return null;
		}
		PropertyDescriptor[] propertyDescriptors = beanInfo
				.getPropertyDescriptors();
		for (int i = 0; i < propertyDescriptors.length; i++) {
			PropertyDescriptor descriptor = propertyDescriptors[i];
			if (descriptor.getName().equals(propertyName)) {
				return descriptor;
			}
		}
		throw new BindingException(
				"Could not find property with name " + propertyName + " in class " + beanClass); //$NON-NLS-1$ //$NON-NLS-2$
	}

	/**
	 * @param observable
	 * @param propertyName
	 * @return property descriptor or <code>null</code>
	 */
	/* package */public static PropertyDescriptor getValueTypePropertyDescriptor(
			IObservableValue observable, String propertyName) {
		if (observable.getValueType() != null)
			return getPropertyDescriptor((Class) observable.getValueType(),
					propertyName);
		return null;
	}
}




/*******************************************************************************
 * Copyright (c) 2008 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

/**
 * Abstract map property implementation for properties where the map can be
 * completely replaced in a single atomic operation.
 * <p>
 * For example, a map-typed bean property Customer.phoneNumbers can be modified
 * by calling Customer.setPhoneNumbers(Map phoneNumbers).
 * 
 * @since 1.2
 */
public abstract class BasicMapProperty extends MapProperty {
	/**
	 * Sets the map property on the source to the specified map.
	 * 
	 * @param source
	 *            the property source
	 * @param map
	 *            the new map
	 */
	protected abstract void setMap(Object source, Map map);

	public void clear(Object source) {
		if (!isEmpty(source))
			setMap(source, new HashMap());
	}

	public Object put(Object source, Object key, Object value) {
		Map map = new HashMap(getMap(source));
		Object result = map.put(key, value);
		setMap(source, map);
		return result;
	}

	public void putAll(Object source, Map t) {
		if (t.isEmpty())
			return;
		Map map = new HashMap(getMap(source));
		for (Iterator it = t.entrySet().iterator(); it.hasNext();) {
			Map.Entry entry = (Map.Entry) it.next();
			map.put(entry.getKey(), entry.getValue());
		}
		setMap(source, map);
	}

	public Object remove(Object source, Object key) {
		Map map = getMap(source);
		if (map.containsKey(key)) {
			map = new HashMap(map);
			Object result = map.remove(key);
			setMap(source, map);
			return result;
		}
		return null;
	}

	public int size(Object source) {
		return getMap(source).size();
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import java.util.Collection;
import java.util.List;

/**
 * Interface for list-typed properties.
 * 
 * @since 1.2
 * @noimplement This interface is not intended to be implemented by clients.
 */
public interface IListProperty extends ICollectionProperty {
	/**
	 * Returns a List with the current contents of the source's list property
	 * 
	 * @param source
	 *            the property source
	 * @return a List with the current contents of the source's list property
	 */
	List getList(Object source);

	/**
	 * Inserts all elements in the specified collection into the source's list
	 * property at the specified index.
	 * 
	 * @param source
	 *            the property source
	 * @param index
	 *            the insertion index
	 * @param c
	 *            the collection of elements to add
	 * @return whether the source's list property was changed
	 */
	boolean addAll(Object source, int index, Collection c);

	/**
	 * Returns the element at the specified position in the source's list
	 * property
	 * 
	 * @param source
	 *            the property source
	 * @param index
	 *            the element position
	 * @return the element at the given position in the source's list property
	 */
	Object get(Object source, int index);

	/**
	 * Replaces the element at the specified position in the source's list
	 * property with the given element.
	 * 
	 * @param source
	 *            the property source
	 * @param index
	 *            the element position
	 * @param element
	 *            the replacement element
	 * @return the element previously at the specified position in the source's
	 *         list property
	 */
	Object set(Object source, int index, Object element);

	/**
	 * Moves the element at the specified old position in the source's list
	 * property to the specified new position
	 * 
	 * @param source
	 *            the property source
	 * @param oldIndex
	 *            the old element position
	 * @param newIndex
	 *            the new element position
	 * @return the element that was moved
	 */
	Object move(Object source, int oldIndex, int newIndex);

	/**
	 * Inserts the element into the source's list property at the specified
	 * position
	 * 
	 * @param source
	 *            the property source
	 * @param index
	 *            the insertion index
	 * @param element
	 *            the element to insert
	 */
	void add(Object source, int index, Object element);

	/**
	 * Removes the element from the source's list property which is located at
	 * the specified position
	 * 
	 * @param source
	 *            the property source
	 * @param index
	 *            the index of the element to remove
	 * @return the element that was removed from the source's list property
	 */
	Object remove(Object source, int index);

	/**
	 * Returns the index of the first location of the given element in the
	 * source's list property, or -1 if the list does not contain the element.
	 * 
	 * @param source
	 *            the property source
	 * @param o
	 *            the element
	 * @return the index of the first location of the given element in the
	 *         source's list property, or -1 if the list does not contain the
	 *         element
	 */
	int indexOf(Object source, Object o);

	/**
	 * Returns the index of the last location of the given element in the
	 * source's list property, or -1 if the list does not contain the given
	 * element.
	 * 
	 * @param source
	 * @param o
	 * @return the index of the last location of the given element in the
	 *         source's list property, or -1 if the list does not contain the
	 *         element
	 */
	int lastIndexOf(Object source, Object o);

	/**
	 * Constructs and returns a "native" listener for the property. When the
	 * native listener receives a change event from the property source, a
	 * ListChangeEvent is constructed and sent to the specified listener.
	 * 
	 * {@link #addPropertyChangeListener(Object, IPropertyChangeListener)} and
	 * {@link #removePropertyChangeListener(Object, IPropertyChangeListener)}.
	 * 
	 * @param listener
	 *            the listener to adapt
	 * @return the adapted listener
	 */
	public IPropertyChangeListener adaptListener(
			IListPropertyChangeListener listener);

	 /**
	 * Convenience method which
	 * {@link #adaptListener(IListPropertyChangeListener) adapts} the specified
	 * listener,
	 * {@link #addPropertyChangeListener(Object, IPropertyChangeListener)
	 * registers} the adapted listener as a property change listener, and
	 * returns the adapted listener
	 * 
	 * @param source
	 *            the property source
	 * @param listener
	 *            the listener
	 * @return the adapted listener
	 */
	public IPropertyChangeListener addListChangeListener(Object source,
			IListPropertyChangeListener listener);
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import java.util.Set;

/**
 * Interface for set-typed properties
 * 
 * @since 1.2
 * @noimplement This interface is not intended to be implemented by clients.
 */
public interface ISetProperty extends ICollectionProperty {
	/**
	 * Returns a Set with the current contents of the source's set property
	 * 
	 * @param source
	 *            the property source
	 * @return a Set with the current contents of the source's set property
	 */
	public Set getSet(Object source);

	/**
	 * Constructs and returns a "native" listener for the property. When the
	 * native listener receives a change event from the property source, a
	 * SetChangeEvent is constructed and sent to the specified listener.
	 * 
	 * {@link #addPropertyChangeListener(Object, IPropertyChangeListener)} and
	 * {@link #removePropertyChangeListener(Object, IPropertyChangeListener)}.
	 * 
	 * @param listener
	 *            the listener to adapt
	 * @return the adapted listener
	 */
	public IPropertyChangeListener adaptListener(ISetPropertyChangeListener listener);

	 /**
	 * Convenience method which
	 * {@link #adaptListener(ISetPropertyChangeListener) adapts} the specified
	 * listener,
	 * {@link #addPropertyChangeListener(Object, IPropertyChangeListener)
	 * registers} the adapted listener as a property change listener, and
	 * returns the adapted listener
	 * 
	 * @param source
	 *            the property source
	 * @param listener
	 *            the listener
	 * @return the adapted listener
	 */
	public IPropertyChangeListener addSetChangeListener(Object source,
			ISetPropertyChangeListener listener);
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import java.util.EventObject;

import org.eclipse.core.databinding.observable.value.ValueDiff;
import org.eclipse.core.runtime.Assert;

/**
 * Value change event describing a change of a value property on a particular
 * property source.
 * 
 * @since 1.2
 */
public class ValuePropertyChangeEvent extends EventObject {
	private static final long serialVersionUID = 1L;

	/**
	 * The value property that changed
	 */
	public final IValueProperty property;

	/**
	 * ValueDiff with the old and new values of the property.
	 */
	public final ValueDiff diff;

	/**
	 * Constructs a ValuePropertyChangeEvent with the given attributes
	 * 
	 * @param source
	 *            the property source
	 * @param property
	 *            the property that changed on the source
	 * @param diff
	 *            a ValueDiff describing the changes to the value property
	 */
	public ValuePropertyChangeEvent(Object source, IValueProperty property,
			ValueDiff diff) {
		super(source);
		this.property = property;
		Assert.isNotNull(diff, "diff cannot be null"); //$NON-NLS-1$
		this.diff = diff;
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

/**
 * Abstract implementation of IMapProperty
 * 
 * @since 1.2
 */
public abstract class MapProperty implements IMapProperty {
	public boolean containsKey(Object source, Object key) {
		return getMap(source).containsKey(key);
	}

	public boolean containsValue(Object source, Object value) {
		return getMap(source).containsValue(value);
	}

	public boolean equals(Object source, Object o) {
		return getMap(source).equals(o);
	}

	public Object get(Object source, Object key) {
		return getMap(source).get(key);
	}

	public int hashCode(Object source) {
		return getMap(source).hashCode();
	}

	public boolean isEmpty(Object source) {
		return getMap(source).isEmpty();
	}

	public int size(Object source) {
		return getMap(source).size();
	}

	 public final IPropertyChangeListener addMapChangeListener(Object source,
			IMapPropertyChangeListener listener) {
		IPropertyChangeListener l = adaptListener(listener);
		addPropertyChangeListener(source, l);
		return l;
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import java.util.Collection;

/**
 * Abstract implementation of IListProperty.
 * 
 * @since 1.2
 */
public abstract class ListProperty extends CollectionProperty implements
		IListProperty {
	Collection getCollection(Object source) {
		return getList(source);
	}

	public Object get(Object source, int index) {
		return getList(source).get(index);
	}

	public int indexOf(Object source, Object o) {
		return getList(source).indexOf(o);
	}

	public int lastIndexOf(Object source, Object o) {
		return getList(source).lastIndexOf(o);
	}

	public final IPropertyChangeListener addListChangeListener(Object source,
			IListPropertyChangeListener listener) {
		IPropertyChangeListener l = adaptListener(listener);
		addPropertyChangeListener(source, l);
		return l;
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import java.util.EventObject;

import org.eclipse.core.databinding.observable.set.SetDiff;
import org.eclipse.core.runtime.Assert;

/**
 * Set change event describing an incremental change of a set property on a
 * particular property source.
 * 
 * @since 1.2
 */
public class SetPropertyChangeEvent extends EventObject {
	private static final long serialVersionUID = 1L;

	/**
	 * The set property that changed
	 */
	public final ISetProperty property;

	/**
	 * SetDiff enumerating the added and removed elements in the set.
	 */
	public final SetDiff diff;

	/**
	 * Constructs a SetPropertyChangeEvent with the given attributes
	 * 
	 * @param source
	 *            the property source
	 * @param property
	 *            the property that changed on the source
	 * @param diff
	 *            a SetDiff describing the changes to the set property
	 */
	public SetPropertyChangeEvent(Object source, ISetProperty property,
			SetDiff diff) {
		super(source);
		this.property = property;
		Assert.isNotNull(diff, "diff cannot be null"); //$NON-NLS-1$
		this.diff = diff;
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property;

import java.util.Collection;
import java.util.Collections;
import java.util.Map;
import java.util.Set;

import org.eclipse.core.databinding.observable.ObservableTracker;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.map.AbstractObservableMap;
import org.eclipse.core.databinding.property.IMapProperty;
import org.eclipse.core.databinding.property.IMapPropertyChangeListener;
import org.eclipse.core.databinding.property.IProperty;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.IPropertyObservable;
import org.eclipse.core.databinding.property.MapPropertyChangeEvent;

/**
 * @since 3.3
 * 
 */
public class PropertyObservableMap extends AbstractObservableMap implements
		IPropertyObservable {
	private Object source;
	private IMapProperty property;

	private volatile boolean updating = false;

	private boolean disposed = false;

	private transient volatile int modCount = 0;

	private IPropertyChangeListener listener;

	/**
	 * @param realm
	 * @param source
	 * @param property
	 */
	public PropertyObservableMap(Realm realm, Object source,
			IMapProperty property) {
		super(realm);
		this.source = source;
		this.property = property;

		IMapPropertyChangeListener mapListener = new IMapPropertyChangeListener() {
			public void handleMapPropertyChange(
					final MapPropertyChangeEvent event) {
				if (!disposed && !updating) {
					getRealm().exec(new Runnable() {
						public void run() {
							getRealm().exec(new Runnable() {
								public void run() {
									modCount++;
									fireMapChange(event.diff);
								}
							});
						}
					});
				}
			}
		};
		this.listener = property.adaptListener(mapListener);
	}

	private void getterCalled() {
		ObservableTracker.getterCalled(this);
	}

	protected void firstListenerAdded() {
		if (!disposed) {
			property.addPropertyChangeListener(source, listener);
		}
	}

	protected void lastListenerRemoved() {
		if (!disposed) {
			property.removePropertyChangeListener(source, listener);
		}
	}

	public boolean containsKey(Object key) {
		getterCalled();
		return property.containsKey(source, key);
	}

	public boolean containsValue(Object value) {
		getterCalled();
		return property.containsValue(source, value);
	}

	public Set entrySet() {
		getterCalled();
		// unmodifiable for now
		return Collections.unmodifiableSet(property.getMap(source).entrySet());
	}

	public Object get(Object key) {
		getterCalled();
		return property.get(source, key);
	}

	public boolean isEmpty() {
		getterCalled();
		return property.isEmpty(source);
	}

	public Set keySet() {
		getterCalled();
		return Collections.unmodifiableSet(property.getMap(source).keySet());
	}

	public Object put(Object key, Object value) {
		checkRealm();
		return property.put(source, key, value);
	}

	public void putAll(Map m) {
		checkRealm();
		property.putAll(source, m);
	}

	public Object remove(Object key) {
		checkRealm();
		return property.remove(source, key);
	}

	public int size() {
		getterCalled();
		return property.size(source);
	}

	public Collection values() {
		getterCalled();
		return Collections.unmodifiableCollection(property.getMap(source)
				.values());
	}

	public void clear() {
		getterCalled();
		property.clear(source);
	}

	public boolean equals(Object o) {
		getterCalled();
		return property.equals(source, o);
	}

	public int hashCode() {
		getterCalled();
		return property.hashCode(source);
	}

	public Object getObserved() {
		return source;
	}

	public IProperty getProperty() {
		return property;
	}

	public synchronized void dispose() {
		if (!disposed) {
			disposed = true;
			property.removePropertyChangeListener(source, listener);
			property = null;
			source = null;
		}
		super.dispose();
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import org.eclipse.core.internal.databinding.property.masterdetail.ListPropertyDetailValueList;
import org.eclipse.core.internal.databinding.property.masterdetail.MapPropertyDetailValueMap;
import org.eclipse.core.internal.databinding.property.masterdetail.SetPropertyDetailValueMap;
import org.eclipse.core.internal.databinding.property.masterdetail.ValuePropertyDetailList;
import org.eclipse.core.internal.databinding.property.masterdetail.ValuePropertyDetailMap;
import org.eclipse.core.internal.databinding.property.masterdetail.ValuePropertyDetailSet;
import org.eclipse.core.internal.databinding.property.masterdetail.ValuePropertyDetailValue;

/**
 * A factory for chaining properties together to create nested properties.
 * <p>
 * Example: Suppose class <code>A</code> has a property <code>b</code> of type
 * <code>B</code>, and that class <code>B</code> has a property <code>c</code>
 * of type <code>C</code>:
 * 
 * <pre>
 * A a = new A();
 * B b = a.getB();
 * IValueProperty ab = BeanProperties.valueProperty(A.class, &quot;b&quot;);
 * assertTrue(ab.getValue(a) == b);
 * 
 * IValueProperty bc = BeanProperties.valueProperty(B.class, &quot;c&quot;);
 * C c = b.getC();
 * assertTrue(bc.getValue(b) == c);
 * </pre>
 * 
 * Using Properties, the <code>ab</code> and <code>bc</code>
 * properties may be combined to form a nested <code>abc</code> property:
 * 
 * <pre>
 * IValueProperty abc = Properties.detailValue(ab, bc)
 * assertTrue(abc.getValue(a) == c);
 * </pre>
 * 
 * @since 1.2
 */
public class Properties {
	// Properties of IValueProperty properties

	/**
	 * Returns the nested combination of the master value and detail value
	 * properties. Value modifications made through the returned property are
	 * delegated to the detail property, using the value of the master property
	 * as the source.
	 * 
	 * @param masterValue
	 *            the master property
	 * @param detailValue
	 *            the detail property
	 * @return the nested combination of the master and detail properties
	 */
	public static IValueProperty detailValue(IValueProperty masterValue,
			IValueProperty detailValue) {
		return new ValuePropertyDetailValue(masterValue, detailValue);
	}

	/**
	 * Returns the nested combination of the master value and detail list
	 * properties. List modifications made through the returned property are
	 * delegated to the detail property, using the value of the master property
	 * as the source.
	 * 
	 * @param masterValue
	 *            the master property
	 * @param detailList
	 *            the detail property
	 * @return the nested combination of the master value and detail list
	 *         properties
	 */
	public static IListProperty detailList(IValueProperty masterValue,
			IListProperty detailList) {
		return new ValuePropertyDetailList(masterValue, detailList);
	}

	/**
	 * Returns the nested combination of the master value and detail set
	 * properties. Set modifications made through the returned property are
	 * delegated to the detail property, using the value of the master property
	 * as the source.
	 * 
	 * @param masterValue
	 *            the master property
	 * @param detailSet
	 *            the detail property
	 * @return the nested combination of the master value and detail set
	 *         properties
	 */
	public static ISetProperty detailSet(IValueProperty masterValue,
			ISetProperty detailSet) {
		return new ValuePropertyDetailSet(masterValue, detailSet);
	}

	/**
	 * Returns the nested combination of the master value and detail map
	 * properties. Map modifications made through the returned property are
	 * delegated to the detail property, using the value of the master property
	 * as the source.
	 * 
	 * @param masterValue
	 *            the master property
	 * @param detailMap
	 *            the detail property
	 * @return the nested combination of the master value and detial map
	 *         properties
	 */
	public static IMapProperty detailMap(IValueProperty masterValue,
			IMapProperty detailMap) {
		return new ValuePropertyDetailMap(masterValue, detailMap);
	}

	// Properties of IListProperty master properties

	/**
	 * Returns the nested combination of the master list and detail value
	 * properties. Note that because this property is a projection of value
	 * properties over a list, the only modification supported is through the
	 * {@link IValueProperty#setValue(Object, Object)} method. Modifications
	 * made through the returned property are delegated to the detail property,
	 * using the corresponding list element from the master property as the
	 * source.
	 * 
	 * @param masterList
	 *            the master property
	 * @param detailValue
	 *            the detail property
	 * @return the nested combination of the master list and detail value
	 *         properties
	 */
	public static IListProperty detailValues(IListProperty masterList,
			IValueProperty detailValue) {
		return new ListPropertyDetailValueList(masterList, detailValue);
	}

	// Properties of ISetProperty master properties

	/**
	 * Returns the nested combination of the master set and detail value
	 * properties. Note that because this property is a projection of value
	 * properties over a set, the only modifications supported are through the
	 * {@link IMapProperty#put(Object, Object, Object)} and
	 * {@link IMapProperty#putAll(Object, java.util.Map)} methods. In the latter
	 * case, this property does not put entries for keys not already in the
	 * master key set. Modifications made through the returned property are
	 * delegated to the detail property, using the corresponding set element
	 * from the master property as the source.
	 * 
	 * @param masterKeySet
	 *            the master property
	 * @param detailValues
	 *            the detail property
	 * @return the nested combination of the master set and detail value
	 *         properties
	 */
	public static IMapProperty detailValues(ISetProperty masterKeySet,
			IValueProperty detailValues) {
		return new SetPropertyDetailValueMap(masterKeySet, detailValues);
	}

	// Properties of IMapProperty master properties

	/**
	 * Returns the nested combination of the master map and detail value
	 * properties. Note that because this property is a projection of value
	 * properties over a values collection, the only modifications supported are
	 * through the {@link IMapProperty#put(Object, Object, Object)} and
	 * {@link IMapProperty#putAll(Object, java.util.Map)} methods. In the latter
	 * case, this property does not entries for keys not already contained in
	 * the master map's key set. Modifications made through the returned
	 * property are delegated to the detail property, using the corresponding
	 * entry value from the master property as the source.
	 * 
	 * @param masterMap
	 *            the master property
	 * @param detailValues
	 *            the detail property
	 * @return the nested combination of the master map and detail value
	 *         properties.
	 */
	public static IMapProperty detailValues(IMapProperty masterMap,
			IValueProperty detailValues) {
		return new MapPropertyDetailValueMap(masterMap, detailValues);
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

/**
 * Interface for value-typed properties
 * 
 * @since 1.2
 * @noimplement This interface is not intended to be implemented by clients.
 */
public interface IValueProperty extends IProperty {
	/**
	 * Returns the source's value property
	 * 
	 * @param source
	 *            the property source
	 * @return the current value of the source's value property
	 */
	public Object getValue(Object source);

	/**
	 * Sets the source's value property to the specified value
	 * 
	 * @param source
	 *            the property source
	 * @param value
	 *            the new value
	 */
	public void setValue(Object source, Object value);

	/**
	 * Returns the value type of the property, or <code>null</code> if untyped.
	 * 
	 * @return the value type of the property, or <code>null</code> if untyped.
	 */
	public Object getValueType();

	/**
	 * Constructs and returns a "native" listener for the property. When the
	 * native listener receives a change event from the property source, a
	 * ValueChangeEvent is constructed and sent to the specified listener.
	 * 
	 * {@link #addPropertyChangeListener(Object, IPropertyChangeListener)} and
	 * {@link #removePropertyChangeListener(Object, IPropertyChangeListener)}.
	 * 
	 * @param listener
	 *            the listener to adapt
	 * @return the adapted listener
	 */
	public IPropertyChangeListener adaptListener(
			IValuePropertyChangeListener listener);

	/**
	 * Convenience method which
	 * {@link #adaptListener(IValuePropertyChangeListener) adapts} the specified
	 * listener,
	 * {@link #addPropertyChangeListener(Object, IPropertyChangeListener)
	 * registers} the adapted listener as a property change listener, and
	 * returns the adapted listener.
	 * 
	 * @param source
	 *            the property source
	 * @param listener
	 *            the listener to adapt
	 * @return the adapted listener
	 */
	public IPropertyChangeListener addValueChangeListener(Object source,
			IValuePropertyChangeListener listener);
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import java.util.Map;

/**
 * Interface for map-typed properties
 * 
 * @since 1.2
 * @noimplement This interface is not intended to be implemented by clients.
 */
public interface IMapProperty extends IProperty {
	/**
	 * Returns a Map with the current contents of the source's map property
	 * 
	 * @param source
	 *            the property source
	 * @return a Map with the current contents of the source's map property
	 */
	Map getMap(Object source);

	/**
	 * Returns the size of the source's map property
	 * 
	 * @param source
	 *            the property source
	 * @return the size of the source's map property
	 */
	int size(Object source);

	/**
	 * Returns whether the source's map property is empty
	 * 
	 * @param source
	 *            the property source
	 * @return whether the source's map property is empty
	 */
	boolean isEmpty(Object source);

	/**
	 * Returns whether the specified key is contained in the key set of the
	 * source's map property
	 * 
	 * @param source
	 *            the property source
	 * @param key
	 *            the key
	 * @return whether the specified key is contained in the key set of the
	 *         source's map property
	 */
	boolean containsKey(Object source, Object key);

	/**
	 * Returns whether the specified value is contains in the values collection
	 * of the source's map property
	 * 
	 * @param source
	 *            the property source
	 * @param value
	 *            the value
	 * @return whether the specified value is contains in the values collection
	 *         of the source's map property
	 */
	boolean containsValue(Object source, Object value);

	/**
	 * Returns the value associated with the specified key in the source's map
	 * property
	 * 
	 * @param source
	 *            the property source
	 * @param key
	 *            the key
	 * @return the value associated with the specified key in the source's map
	 *         property
	 */
	Object get(Object source, Object key);

	/**
	 * Associates the specified value with the specified key in the source's map
	 * property
	 * 
	 * @param source
	 *            the property source
	 * @param key
	 *            the key
	 * @param value
	 *            the value
	 * @return the value that was previously associated with the given key in
	 *         the source's map property
	 */
	Object put(Object source, Object key, Object value);

	/**
	 * Removes the mapping for the specified key from the source's map property
	 * 
	 * @param source
	 *            the property source
	 * @param key
	 *            the key
	 * @return the value that was previously associated with the specified key
	 *         in the source's map property, or null if no such mapping exists
	 */
	Object remove(Object source, Object key);

	/**
	 * Adds all mappings in the specified map to the source's map property.
	 * 
	 * @param source
	 *            the property source
	 * @param t
	 *            the map
	 */
	void putAll(Object source, Map t);

	/**
	 * Removes all mapping from the source's map property
	 * 
	 * @param source
	 *            the property source
	 */
	void clear(Object source);

	/**
	 * Returns whether the source's map property is equal to the argument
	 * 
	 * @param source
	 *            the property source
	 * @param o
	 *            the object to test for equality
	 * @return whether the source's map property is equal to the argument
	 */
	boolean equals(Object source, Object o);

	/**
	 * Returns the hash code of the source's map property
	 * 
	 * @param source
	 *            the property source
	 * @return the hash code of the source's map property
	 */
	int hashCode(Object source);

	/**
	 * Constructs and returns a "native" listener for the property. When the
	 * native listener receives a change event from the property source, a
	 * MapChangeEvent is constructed and sent to the specified listener.
	 * 
	 * {@link #addPropertyChangeListener(Object, IPropertyChangeListener)} and
	 * {@link #removePropertyChangeListener(Object, IPropertyChangeListener)}.
	 * 
	 * @param listener
	 *            the listener to adapt
	 * @return the adapted listener
	 */
	public IPropertyChangeListener adaptListener(
			IMapPropertyChangeListener listener);

	 /**
	 * Convenience method which
	 * {@link #adaptListener(IMapPropertyChangeListener) adapts} the specified
	 * listener,
	 * {@link #addPropertyChangeListener(Object, IPropertyChangeListener)
	 * registers} the adapted listener as a property change listener, and
	 * returns the adapted listener
	 * 
	 * @param source
	 *            the property source
	 * @param listener
	 *            the listener
	 * @return the adapted listener
	 */
	public IPropertyChangeListener addMapChangeListener(Object source,
			IMapPropertyChangeListener listener);
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

/**
 * Listener for changes to map properties on a property source
 * 
 * @since 1.2
 */
public interface IMapPropertyChangeListener {
	/**
	 * Handle a change to a map property on a specific property source.
	 * 
	 * @param event
	 *            an event describing the map change that occured.
	 */
	public void handleMapPropertyChange(MapPropertyChangeEvent event);
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

/**
 * Abstract implementation of IValueProperty.
 * 
 * @since 1.2
 */
public abstract class ValueProperty implements IValueProperty {
	 public final IPropertyChangeListener addValueChangeListener(Object source,
			IValuePropertyChangeListener listener) {
		IPropertyChangeListener l = adaptListener(listener);
		addPropertyChangeListener(source, l);
		return l;
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

/**
 * Listener for changes to value properties on a property source
 * 
 * @since 1.2
 */
public interface IValuePropertyChangeListener {
	/**
	 * Handle a change to a value property on a specific property source.
	 * 
	 * @param event
	 *            an event describing the value change that occured.
	 */
	public void handleValuePropertyChange(ValuePropertyChangeEvent event);
}




/*******************************************************************************
 * Copyright (c) 2008 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;

/**
 * Abstract IListProperty implementation for properties where the list can be
 * completely replaced in a single atomic operation.
 * <p>
 * For example, a list-typed bean property Customer.invoices can be modified by
 * calling Customer.setInvoices(List invoices).
 * 
 * @since 1.2
 */
public abstract class BasicListProperty extends ListProperty {
	/**
	 * Sets the list property on the source to the specified list.
	 * 
	 * @param source
	 *            the property source
	 * @param list
	 *            the new list
	 */
	protected abstract void setList(Object source, List list);

	public boolean add(Object source, Object o) {
		add(source, size(source), o);
		return true;
	}

	public void add(Object source, int index, Object element) {
		List list = new ArrayList(getList(source));
		list.add(index, element);
		setList(source, list);
	}

	public boolean addAll(Object source, Collection c) {
		if (c.isEmpty())
			return false;
		addAll(source, size(source), c);
		return true;
	}

	public boolean addAll(Object source, int index, Collection c) {
		if (c.isEmpty()) {
			return false;
		}

		List list = new ArrayList(getList(source));
		boolean changed = false;
		int i = index;
		for (Iterator it = c.iterator(); it.hasNext(); i++) {
			Object o = it.next();
			list.add(i, o);
			changed = true;
		}
		if (changed) {
			setList(source, list);
		}
		return changed;
	}

	public void clear(Object source) {
		if (isEmpty(source))
			return;
		setList(source, new ArrayList());
	}

	public Object move(Object source, int oldIndex, int newIndex) {
		if (oldIndex == newIndex)
			return get(source, oldIndex);
		List list = new ArrayList(getList(source));
		Object result = list.remove(oldIndex);
		list.add(newIndex, result);
		setList(source, list);
		return result;
	}

	public boolean remove(Object source, Object o) {
		int i = indexOf(source, o);
		if (i == -1)
			return false;
		remove(source, i);
		return true;
	}

	public Object remove(Object source, int index) {
		List list = new ArrayList(getList(source));
		Object result = list.remove(index);
		setList(source, list);
		return result;
	}

	public boolean removeAll(Object source, Collection c) {
		if (isEmpty(source)) {
			return false;
		}
		if (c.isEmpty()) {
			return false;
		}
		List list = new ArrayList(getList(source));
		boolean changed = false;
		for (ListIterator it = list.listIterator(); it.hasNext();) {
			Object o = it.next();
			if (c.contains(o)) {
				it.remove();
				changed = true;
			}
		}
		if (changed) {
			setList(source, list);
		}
		return changed;
	}

	public boolean retainAll(Object source, Collection c) {
		if (isEmpty(source)) {
			return false;
		}
		if (c.isEmpty()) {
			clear(source);
			return true;
		}
		List list = new ArrayList(getList(source));
		boolean changed = false;
		for (ListIterator it = list.listIterator(); it.hasNext();) {
			Object o = it.next();
			if (!c.contains(o)) {
				it.remove();
				changed = true;
			}
		}
		if (changed) {
			setList(source, list);
		}
		return changed;
	}

	public Object set(Object source, int index, Object element) {
		List list = new ArrayList(getList(source));
		Object result = list.set(index, element);
		setList(source, list);
		return result;
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property.masterdetail;

import java.util.HashMap;
import java.util.Map;

import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.value.ValueDiff;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.databinding.property.IValuePropertyChangeListener;
import org.eclipse.core.databinding.property.ValueProperty;
import org.eclipse.core.databinding.property.ValuePropertyChangeEvent;

/**
 * @since 1.2
 * 
 */
public class ValuePropertyDetailValue extends ValueProperty implements
		IValueProperty {
	private IValueProperty masterProperty;
	private IValueProperty detailProperty;

	/**
	 * @param masterProperty
	 * @param detailProperty
	 */
	public ValuePropertyDetailValue(IValueProperty masterProperty,
			IValueProperty detailProperty) {
		this.masterProperty = masterProperty;
		this.detailProperty = detailProperty;
	}

	public Object getValueType() {
		return detailProperty.getValueType();
	}

	public Object getValue(Object source) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.getValue(masterValue);
	}

	public void setValue(Object source, Object value) {
		Object masterValue = masterProperty.getValue(source);
		detailProperty.setValue(masterValue, value);
	}

	public IPropertyChangeListener adaptListener(
			IValuePropertyChangeListener listener) {
		return new ListenerAdaptor(listener);
	}

	public void addPropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		((ListenerAdaptor) listener).addListenerTo(source);
	}

	public void removePropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		((ListenerAdaptor) listener).removeListenerFrom(source);
	}

	private class ListenerAdaptor implements IPropertyChangeListener {
		private final IValuePropertyChangeListener wrapped;

		private IPropertyChangeListener masterListener;
		private Map sourceToDetailListener = new HashMap();

		ListenerAdaptor(IValuePropertyChangeListener wrapped) {
			this.wrapped = wrapped;

			IValuePropertyChangeListener masterValueListener = new MasterValuePropertyListener();
			masterListener = masterProperty.adaptListener(masterValueListener);
		}

		private void fireValueChange(Object source, ValueDiff diff) {
			wrapped.handleValuePropertyChange(new ValuePropertyChangeEvent(
					source, ValuePropertyDetailValue.this, diff));
		}

		protected void addListenerTo(Object source) {
			masterProperty.addPropertyChangeListener(source, masterListener);
			addDetailPropertyListener(source);
		}

		protected void removeListenerFrom(Object source) {
			masterProperty.removePropertyChangeListener(source, masterListener);
			removeDetailPropertyListener(source);
		}

		private void addDetailPropertyListener(Object source) {
			Object masterValue = masterProperty.getValue(source);
			DetailValuePropertyListener detailListener = new DetailValuePropertyListener(
					source, masterValue);
			IPropertyChangeListener listener = detailListener.wrapper = detailProperty
					.adaptListener(detailListener);
			detailProperty.addPropertyChangeListener(masterValue, listener);
			sourceToDetailListener.put(source, detailListener);
		}

		private void removeDetailPropertyListener(Object source) {
			DetailValuePropertyListener detailListener = (DetailValuePropertyListener) sourceToDetailListener
					.remove(source);
			if (detailListener != null) {
				detailProperty.removePropertyChangeListener(
						detailListener.masterValue, detailListener.wrapper);
			}
		}

		private class MasterValuePropertyListener implements
				IValuePropertyChangeListener {
			public void handleValuePropertyChange(ValuePropertyChangeEvent event) {
				Object oldSource = event.diff.getOldValue();
				Object newSource = event.diff.getNewValue();

				Object oldValue = detailProperty.getValue(oldSource);
				Object newValue = detailProperty.getValue(newSource);

				ValueDiff diff = Diffs.createValueDiff(oldValue, newValue);

				Object source = event.getSource();

				removeDetailPropertyListener(source);
				addDetailPropertyListener(source);

				fireValueChange(source, diff);
			}
		}

		private class DetailValuePropertyListener implements
				IValuePropertyChangeListener {
			private Object source;
			private Object masterValue;
			private IPropertyChangeListener wrapper;

			DetailValuePropertyListener(Object source, Object masterValue) {
				this.source = source;
				this.masterValue = masterValue;
			}

			public void handleValuePropertyChange(ValuePropertyChangeEvent event) {
				fireValueChange(source, event.diff);
			}
		}
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property;

import java.util.AbstractSet;
import java.util.HashMap;
import java.util.HashSet;
import java.util.IdentityHashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.IObserving;
import org.eclipse.core.databinding.observable.IStaleListener;
import org.eclipse.core.databinding.observable.ObservableTracker;
import org.eclipse.core.databinding.observable.StaleEvent;
import org.eclipse.core.databinding.observable.map.AbstractObservableMap;
import org.eclipse.core.databinding.observable.map.IMapChangeListener;
import org.eclipse.core.databinding.observable.map.IObservableMap;
import org.eclipse.core.databinding.observable.map.MapChangeEvent;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.databinding.property.IValuePropertyChangeListener;
import org.eclipse.core.databinding.property.ValuePropertyChangeEvent;
import org.eclipse.core.internal.databinding.Util;

/**
 * @since 3.3
 * 
 */
public class MapValuePropertyObservableMap extends AbstractObservableMap
		implements IObserving {
	private IObservableMap map;
	private IValueProperty property;

	private Map keyToMasterValueListener;

	private boolean updating = false;
	private boolean disposed = false;

	private IMapChangeListener mapListener = new IMapChangeListener() {
		public void handleMapChange(final MapChangeEvent event) {
			if (!updating && !disposed) {
				getRealm().exec(new Runnable() {
					public void run() {
						Map oldValues = new HashMap();
						Map newValues = new HashMap();

						Set addedKeys = event.diff.getAddedKeys();
						for (Iterator it = addedKeys.iterator(); it.hasNext();) {
							Object key = it.next();
							Object newSource = event.diff.getNewValue(key);
							Object newValue = property.getValue(newSource);
							newValues.put(key, newValue);
							addPropertySourceListener(key, newSource);
						}

						Set removedKeys = event.diff.getRemovedKeys();
						for (Iterator it = removedKeys.iterator(); it.hasNext();) {
							Object key = it.next();
							Object oldSource = event.diff.getOldValue(key);
							Object oldValue = property.getValue(oldSource);
							oldValues.put(key, oldValue);
							removePropertySourceListener(key, oldSource);
						}

						Set changedKeys = new HashSet(event.diff
								.getChangedKeys());
						for (Iterator it = changedKeys.iterator(); it.hasNext();) {
							Object key = it.next();

							Object oldSource = event.diff.getOldValue(key);
							Object newSource = event.diff.getNewValue(key);

							Object oldValue = property.getValue(oldSource);
							Object newValue = property.getValue(newSource);

							if (Util.equals(oldValue, newValue)) {
								it.remove();
							} else {
								oldValues.put(key, oldValue);
								newValues.put(key, newValue);
							}

							removePropertySourceListener(key, oldSource);
							addPropertySourceListener(key, newSource);
						}

						fireMapChange(Diffs.createMapDiff(addedKeys,
								removedKeys, changedKeys, oldValues, newValues));
					}
				});
			}
		}
	};

	private IStaleListener staleListener = new IStaleListener() {
		public void handleStale(StaleEvent staleEvent) {
			fireStale();
		}
	};

	/**
	 * @param map
	 * @param valueProperty
	 */
	public MapValuePropertyObservableMap(IObservableMap map,
			IValueProperty valueProperty) {
		super(map.getRealm());
		this.map = map;
		this.property = valueProperty;

		this.keyToMasterValueListener = new IdentityHashMap();
	}

	private class ValuePropertySourceChangeListener implements
			IValuePropertyChangeListener {
		private final Object key;
		private IPropertyChangeListener adaptor;

		public ValuePropertySourceChangeListener(Object key) {
			this.key = key;
		}

		public void handleValuePropertyChange(ValuePropertyChangeEvent event) {
			Object oldSource = event.diff.getOldValue();
			Object oldValue = property.getValue(oldSource);
			property.removePropertyChangeListener(oldSource, adaptor);

			Object newSource = event.diff.getNewValue();
			Object newValue = property.getValue(newSource);
			property.addPropertyChangeListener(newSource, adaptor);

			if (!Util.equals(oldValue, newValue))
				fireMapChange(Diffs.createMapDiffSingleChange(key, oldValue,
						newValue));
		}
	}

	protected void firstListenerAdded() {
		if (!disposed) {
			map.addMapChangeListener(mapListener);
			map.addStaleListener(staleListener);
			for (Iterator iterator = map.entrySet().iterator(); iterator
					.hasNext();) {
				Map.Entry entry = (Map.Entry) iterator.next();
				Object key = entry.getKey();
				Object masterValue = entry.getValue();

				addPropertySourceListener(key, masterValue);
			}
		}
	}

	protected void lastListenerRemoved() {
		if (!disposed) {
			map.removeMapChangeListener(mapListener);
			map.removeStaleListener(staleListener);
			for (Iterator iterator = map.entrySet().iterator(); iterator
					.hasNext();) {
				Map.Entry entry = (Map.Entry) iterator.next();
				Object key = entry.getKey();
				Object propertySource = entry.getValue();

				removePropertySourceListener(key, propertySource);
			}
		}
	}

	private void addPropertySourceListener(Object key, Object propertySource) {
		ValuePropertySourceChangeListener valueListener = new ValuePropertySourceChangeListener(
				key);
		IPropertyChangeListener listener = valueListener.adaptor = property
				.adaptListener(valueListener);
		property.addPropertyChangeListener(propertySource, listener);
		keyToMasterValueListener.put(key, listener);
	}

	private void removePropertySourceListener(Object key, Object propertySource) {
		IPropertyChangeListener listener = (IPropertyChangeListener) keyToMasterValueListener
				.remove(key);
		if (listener != null) {
			property.removePropertyChangeListener(propertySource, listener);
		}
	}

	protected Object doGet(Object key) {
		if (!map.containsKey(key))
			return null;
		return property.getValue(map.get(key));
	}

	protected Object doPut(Object key, Object value) {
		if (!map.containsKey(key))
			return null;
		Object source = map.get(key);

		Object oldValue = property.getValue(source);

		updating = true;
		try {
			property.setValue(source, value);
		} finally {
			updating = false;
		}

		Object newValue = property.getValue(source);

		if (!Util.equals(oldValue, newValue)) {
			fireMapChange(Diffs.createMapDiffSingleChange(key, oldValue,
					newValue));
		}

		return oldValue;
	}

	private Set entrySet;

	public Set entrySet() {
		getterCalled();
		if (entrySet == null)
			entrySet = new EntrySet();
		return entrySet;
	}

	class EntrySet extends AbstractSet {
		public Iterator iterator() {
			return new Iterator() {
				Iterator it = map.entrySet().iterator();

				public boolean hasNext() {
					getterCalled();
					return it.hasNext();
				}

				public Object next() {
					getterCalled();
					Map.Entry next = (Map.Entry) it.next();
					return new MapEntry(next.getKey());
				}

				public void remove() {
					it.remove();
				}
			};
		}

		public int size() {
			return map.size();
		}
	}

	class MapEntry implements Map.Entry {
		private Object key;

		MapEntry(Object key) {
			this.key = key;
		}

		public Object getKey() {
			getterCalled();
			return key;
		}

		public Object getValue() {
			getterCalled();
			return get(key);
		}

		public Object setValue(Object value) {
			return put(key, value);
		}

		public boolean equals(Object o) {
			getterCalled();
			if (o == this)
				return true;
			if (o == null)
				return false;
			if (!(o instanceof Map.Entry))
				return false;
			Map.Entry that = (Map.Entry) o;
			return Util.equals(this.getKey(), that.getKey())
					&& Util.equals(this.getValue(), that.getValue());
		}

		public int hashCode() {
			getterCalled();
			Object value = getValue();
			return (key == null ? 0 : key.hashCode())
					^ (value == null ? 0 : value.hashCode());
		}
	}

	public boolean isStale() {
		getterCalled();
		return map.isStale();
	}

	private void getterCalled() {
		ObservableTracker.getterCalled(this);
	}

	public Object getObserved() {
		return map;
	}

	public synchronized void dispose() {
		if (!disposed) {
			disposed = true;
			property = null;
		}

		super.dispose();
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property.masterdetail;

import java.util.Collections;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.map.MapDiff;
import org.eclipse.core.databinding.property.IMapPropertyChangeListener;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.ISetProperty;
import org.eclipse.core.databinding.property.ISetPropertyChangeListener;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.databinding.property.IValuePropertyChangeListener;
import org.eclipse.core.databinding.property.MapProperty;
import org.eclipse.core.databinding.property.MapPropertyChangeEvent;
import org.eclipse.core.databinding.property.SetPropertyChangeEvent;
import org.eclipse.core.databinding.property.ValuePropertyChangeEvent;

/**
 * @since 3.3
 * 
 */
public class SetPropertyDetailValueMap extends MapProperty {
	private final ISetProperty masterProperty;
	private final IValueProperty detailProperty;

	/**
	 * @param masterProperty
	 * @param detailProperty
	 */
	public SetPropertyDetailValueMap(ISetProperty masterProperty,
			IValueProperty detailProperty) {
		this.masterProperty = masterProperty;
		this.detailProperty = detailProperty;
	}

	public Map getMap(Object source) {
		Map result = new HashMap();
		for (Iterator it = masterProperty.getSet(source).iterator(); it
				.hasNext();) {
			Object element = it.next();
			result.put(element, detailProperty.getValue(element));
		}
		return result;
	}

	public void clear(Object source) {
		throw new UnsupportedOperationException();
	}

	public Object put(Object source, Object key, Object value) {
		if (!masterProperty.contains(source, key))
			return null;
		Object result = detailProperty.getValue(key);
		detailProperty.setValue(key, value);
		return result;
	}

	public void putAll(Object source, Map t) {
		Set masterSet = masterProperty.getSet(source);
		for (Iterator it = t.entrySet().iterator(); it.hasNext();) {
			Map.Entry entry = (Map.Entry) it.next();
			if (masterSet.contains(entry.getKey())) {
				detailProperty.setValue(entry.getKey(), entry.getValue());
			}
		}
	}

	public Object remove(Object source, Object key) {
		throw new UnsupportedOperationException();
	}

	public IPropertyChangeListener adaptListener(
			IMapPropertyChangeListener listener) {
		return new ListenerAdaptor(listener);
	}

	public void addPropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		((ListenerAdaptor) listener).addListenerTo(source);
	}

	public void removePropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		((ListenerAdaptor) listener).removeListenerFrom(source);
	}

	private class ListenerAdaptor implements IPropertyChangeListener {
		private final IMapPropertyChangeListener wrapped;

		private IPropertyChangeListener masterListener;
		private Map sourceToMasterElementToDetailListener = new HashMap();

		ListenerAdaptor(IMapPropertyChangeListener wrapped) {
			this.wrapped = wrapped;

			ISetPropertyChangeListener masterSetListener = new MasterSetPropertyListener();
			masterListener = masterProperty.adaptListener(masterSetListener);
		}

		private void fireMapChange(Object source, MapDiff diff) {
			wrapped.handleMapPropertyChange(new MapPropertyChangeEvent(source,
					SetPropertyDetailValueMap.this, diff));
		}

		protected void addListenerTo(Object source) {
			masterProperty.addPropertyChangeListener(source, masterListener);

			Map masterElementToDetailListener = new HashMap();
			for (Iterator it = masterProperty.getSet(source).iterator(); it
					.hasNext();) {
				Object masterElement = it.next();
				DetailPropertyListener detailListener = new DetailPropertyListener(
						source, masterElement);
				IPropertyChangeListener listener = detailListener.wrapper = detailProperty
						.adaptListener(detailListener);
				detailProperty.addPropertyChangeListener(masterElement,
						listener);
				masterElementToDetailListener
						.put(masterElement, detailListener);
			}

			sourceToMasterElementToDetailListener.put(source,
					masterElementToDetailListener);
		}

		protected void removeListenerFrom(Object source) {
			masterProperty.removePropertyChangeListener(source, masterListener);
			Map masterElementToDetailListener = (Map) sourceToMasterElementToDetailListener
					.remove(source);
			if (masterElementToDetailListener != null) {
				for (Iterator it = masterElementToDetailListener.entrySet()
						.iterator(); it.hasNext();) {
					Map.Entry entry = (Map.Entry) it.next();
					detailProperty
							.removePropertyChangeListener(
									entry.getKey(),
									((DetailPropertyListener) entry.getValue()).wrapper);
				}
			}
		}

		private class MasterSetPropertyListener implements
				ISetPropertyChangeListener {
			public void handleSetPropertyChange(
					final SetPropertyChangeEvent event) {
				Object source = event.getSource();

				MapDiff diff;
				if (event.diff == null) {
					diff = null;
				} else {
					final Set removals = event.diff.getRemovals();
					final Set additions = event.diff.getAdditions();

					diff = new MapDiff() {
						public Set getAddedKeys() {
							return additions;
						}

						public Set getChangedKeys() {
							return Collections.EMPTY_SET;
						}

						public Object getNewValue(Object key) {
							return getValue(key);
						}

						public Object getOldValue(Object key) {
							return getValue(key);
						}

						private Object getValue(Object key) {
							return detailProperty.getValue(key);
						}

						public Set getRemovedKeys() {
							return removals;
						}
					};

					for (Iterator it = removals.iterator(); it.hasNext();) {
						removeElementPropertyListener(source, it.next());
					}
					for (Iterator it = additions.iterator(); it.hasNext();) {
						addElementPropertyListener(source, it.next());
					}
				}

				fireMapChange(source, diff);
			}

			private void addElementPropertyListener(Object source,
					Object element) {
				Map elementToDetailListener = (Map) sourceToMasterElementToDetailListener
						.get(source);
				if (elementToDetailListener == null) {
					sourceToMasterElementToDetailListener.put(source,
							elementToDetailListener = new HashMap());
				}
				if (!elementToDetailListener.containsKey(element)) {
					DetailPropertyListener detailListener = new DetailPropertyListener(
							source, element);
					IPropertyChangeListener listener = detailListener.wrapper = detailProperty
							.adaptListener(detailListener);
					detailProperty.addPropertyChangeListener(element, listener);
					elementToDetailListener.put(element, detailListener);
				}
			}

			private void removeElementPropertyListener(Object source,
					Object element) {
				Map elementToDetailListener = (Map) sourceToMasterElementToDetailListener
						.get(source);
				if (elementToDetailListener != null
						&& elementToDetailListener.containsKey(element)) {
					DetailPropertyListener detailListener = (DetailPropertyListener) elementToDetailListener
							.remove(element);
					detailProperty.removePropertyChangeListener(element,
							detailListener.wrapper);
				}
			}
		}

		private class DetailPropertyListener implements
				IValuePropertyChangeListener {
			private Object source;
			private Object masterValue;
			private IPropertyChangeListener wrapper;

			DetailPropertyListener(Object source, Object masterValue) {
				this.source = source;
				this.masterValue = masterValue;
			}

			public void handleValuePropertyChange(ValuePropertyChangeEvent event) {
				MapDiff diff;
				if (event.diff == null) {
					diff = null;
				} else {
					diff = Diffs.createMapDiffSingleChange(masterValue,
							event.diff.getOldValue(), event.diff.getNewValue());
				}
				fireMapChange(source, diff);
			}
		}

	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import java.util.Collection;

/**
 * Abstract implementation of ISetProperty
 * 
 * @since 1.2
 */
public abstract class SetProperty extends CollectionProperty implements
		ISetProperty {
	Collection getCollection(Object source) {
		return getSet(source);
	}

	 public final IPropertyChangeListener addSetChangeListener(Object source,
			ISetPropertyChangeListener listener) {
		IPropertyChangeListener l = adaptListener(listener);
		addPropertyChangeListener(source, l);
		return l;
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property.masterdetail;

import java.util.Collection;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.list.ListDiff;
import org.eclipse.core.databinding.property.IListProperty;
import org.eclipse.core.databinding.property.IListPropertyChangeListener;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.databinding.property.IValuePropertyChangeListener;
import org.eclipse.core.databinding.property.ListProperty;
import org.eclipse.core.databinding.property.ListPropertyChangeEvent;
import org.eclipse.core.databinding.property.ValuePropertyChangeEvent;

/**
 * @since 3.3
 * 
 */
public class ValuePropertyDetailList extends ListProperty {
	private final IValueProperty masterProperty;
	private final IListProperty detailProperty;

	/**
	 * @param masterProperty
	 * @param detailProperty
	 */
	public ValuePropertyDetailList(IValueProperty masterProperty,
			IListProperty detailProperty) {
		this.masterProperty = masterProperty;
		this.detailProperty = detailProperty;
	}

	public List getList(Object source) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.getList(masterValue);
	}

	public boolean add(Object source, Object o) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.add(masterValue, o);
	}

	public boolean addAll(Object source, Collection c) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.addAll(masterValue, c);
	}

	public void clear(Object source) {
		Object masterValue = masterProperty.getValue(source);
		detailProperty.clear(masterValue);
	}

	public Object getElementType() {
		return detailProperty.getElementType();
	}

	public boolean remove(Object source, Object o) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.remove(masterValue, o);
	}

	public boolean removeAll(Object source, Collection c) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.removeAll(masterValue, c);
	}

	public boolean retainAll(Object source, Collection c) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.retainAll(masterValue, c);
	}

	public void add(Object source, int index, Object element) {
		Object masterValue = masterProperty.getValue(source);
		detailProperty.add(masterValue, index, element);
	}

	public boolean addAll(Object source, int index, Collection c) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.addAll(masterValue, index, c);
	}

	public Object move(Object source, int oldIndex, int newIndex) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.move(masterValue, oldIndex, newIndex);
	}

	public Object remove(Object source, int index) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.remove(masterValue, index);
	}

	public Object set(Object source, int index, Object element) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.set(masterValue, index, element);
	}

	public IPropertyChangeListener adaptListener(
			IListPropertyChangeListener listener) {
		return new ListenerAdaptor(listener);
	}

	public void addPropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		((ListenerAdaptor) listener).addListenerTo(source);
	}

	public void removePropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		((ListenerAdaptor) listener).removeListenerFrom(source);
	}

	private class ListenerAdaptor implements IPropertyChangeListener {
		private final IListPropertyChangeListener wrapped;

		private IPropertyChangeListener masterListener;
		private Map sourceToDetailListener = new HashMap();

		ListenerAdaptor(IListPropertyChangeListener wrapped) {
			this.wrapped = wrapped;

			IValuePropertyChangeListener masterValueListener = new MasterPropertyListener();
			masterListener = masterProperty.adaptListener(masterValueListener);
		}

		private void fireListChange(Object source, ListDiff diff) {
			wrapped.handleListPropertyChange(new ListPropertyChangeEvent(
					source, ValuePropertyDetailList.this, diff));
		}

		protected void addListenerTo(Object source) {
			masterProperty.addPropertyChangeListener(source, masterListener);
			addDetailPropertyListener(source);
		}

		protected void removeListenerFrom(Object source) {
			masterProperty.removePropertyChangeListener(source, masterListener);
			removeDetailPropertyListener(source);
		}

		private void addDetailPropertyListener(Object source) {
			Object masterValue = masterProperty.getValue(source);
			DetailPropertyListener detailListener = new DetailPropertyListener(
					source, masterValue);
			IPropertyChangeListener listener = detailListener.wrapper = detailProperty
					.adaptListener(detailListener);
			detailProperty.addPropertyChangeListener(masterValue, listener);
			sourceToDetailListener.put(source, detailListener);
		}

		private void removeDetailPropertyListener(Object source) {
			DetailPropertyListener detailListener = (DetailPropertyListener) sourceToDetailListener
					.remove(source);
			if (detailListener != null) {
				detailProperty.removePropertyChangeListener(
						detailListener.masterValue, detailListener.wrapper);
			}
			sourceToDetailListener.remove(source);
		}

		private class MasterPropertyListener implements
				IValuePropertyChangeListener {
			public void handleValuePropertyChange(ValuePropertyChangeEvent event) {
				Object oldSource = event.diff.getOldValue();
				Object newSource = event.diff.getNewValue();

				List oldList = detailProperty.getList(oldSource);
				List newList = detailProperty.getList(newSource);

				Object source = event.getSource();

				removeDetailPropertyListener(source);
				addDetailPropertyListener(source);

				fireListChange(source, Diffs.computeListDiff(oldList, newList));
			}
		}

		private class DetailPropertyListener implements
				IListPropertyChangeListener {
			private Object source;
			private Object masterValue;
			private IPropertyChangeListener wrapper;

			DetailPropertyListener(Object source, Object masterValue) {
				this.source = source;
				this.masterValue = masterValue;
			}

			public void handleListPropertyChange(ListPropertyChangeEvent event) {
				fireListChange(source, event.diff);
			}
		}
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

/**
 * Interface for observing a property of a source object.
 * 
 * @since 1.2
 * @noimplement This interface is not intended to be implemented by clients.
 */
public interface IProperty {
	/**
	 * Adds the given property change listener to the list of listeners for the
	 * given source.
	 * 
	 * @param source
	 *            the property source
	 * @param listener
	 *            the listener
	 */
	public void addPropertyChangeListener(Object source,
			IPropertyChangeListener listener);

	/**
	 * Removes the given property change listener from the list of listeners for
	 * the given source.
	 * 
	 * @param source
	 *            the property source
	 * @param listener
	 *            the listener
	 */
	public void removePropertyChangeListener(Object source,
			IPropertyChangeListener listener);
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property.masterdetail;

import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import java.util.Map;
import java.util.Set;

import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.list.ListDiff;
import org.eclipse.core.databinding.observable.list.ListDiffEntry;
import org.eclipse.core.databinding.property.IListProperty;
import org.eclipse.core.databinding.property.IListPropertyChangeListener;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.databinding.property.IValuePropertyChangeListener;
import org.eclipse.core.databinding.property.ListProperty;
import org.eclipse.core.databinding.property.ListPropertyChangeEvent;
import org.eclipse.core.databinding.property.ValuePropertyChangeEvent;
import org.eclipse.core.internal.databinding.Util;

/**
 * @since 3.3
 * 
 */
public class ListPropertyDetailValueList extends ListProperty {
	private final IListProperty masterProperty;
	private final IValueProperty detailProperty;

	/**
	 * @param masterProperty
	 * @param detailProperty
	 */
	public ListPropertyDetailValueList(IListProperty masterProperty,
			IValueProperty detailProperty) {
		this.masterProperty = masterProperty;
		this.detailProperty = detailProperty;
	}

	public List getList(Object source) {
		List result = new ArrayList();
		for (Iterator it = masterProperty.getList(source).iterator(); it
				.hasNext();) {
			result.add(detailProperty.getValue(it.next()));
		}
		return result;
	}

	public boolean add(Object source, Object o) {
		throw new UnsupportedOperationException();
	}

	public boolean addAll(Object source, Collection c) {
		throw new UnsupportedOperationException();
	}

	public void clear(Object source) {
		throw new UnsupportedOperationException();
	}

	public Object getElementType() {
		return detailProperty.getValueType();
	}

	public boolean remove(Object source, Object o) {
		throw new UnsupportedOperationException();
	}

	public boolean removeAll(Object source, Collection c) {
		throw new UnsupportedOperationException();
	}

	public boolean retainAll(Object source, Collection c) {
		throw new UnsupportedOperationException();
	}

	public void add(Object source, int index, Object element) {
		throw new UnsupportedOperationException();
	}

	public boolean addAll(Object source, int index, Collection c) {
		throw new UnsupportedOperationException();
	}

	public Object move(Object source, int oldIndex, int newIndex) {
		throw new UnsupportedOperationException();
	}

	public Object remove(Object source, int index) {
		throw new UnsupportedOperationException();
	}

	public Object set(Object source, int index, Object element) {
		Object masterElement = masterProperty.get(source, index);
		Object result = detailProperty.getValue(masterElement);
		detailProperty.setValue(masterElement, element);
		return result;
	}

	public IPropertyChangeListener adaptListener(
			IListPropertyChangeListener listener) {
		return new ListenerAdaptor(listener);
	}

	public void addPropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		((ListenerAdaptor) listener).addListenerTo(source);
	}

	public void removePropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		((ListenerAdaptor) listener).removeListenerFrom(source);
	}

	private class ListenerAdaptor implements IPropertyChangeListener {
		private final IListPropertyChangeListener wrapped;

		private IPropertyChangeListener masterListener;
		private Map sourceToMasterElementToDetailListener = new HashMap();

		ListenerAdaptor(IListPropertyChangeListener wrapped) {
			this.wrapped = wrapped;

			IListPropertyChangeListener masterListListener = new MasterListPropertyListener();
			masterListener = masterProperty.adaptListener(masterListListener);
		}

		private void fireListChange(Object source, ListDiff diff) {
			wrapped.handleListPropertyChange(new ListPropertyChangeEvent(
					source, ListPropertyDetailValueList.this, diff));
		}

		protected void addListenerTo(Object source) {
			masterProperty.addPropertyChangeListener(source, masterListener);

			Map masterElementToDetailListener = new HashMap();
			for (Iterator it = masterProperty.getList(source).iterator(); it
					.hasNext();) {
				Object masterElement = it.next();
				DetailValuePropertyListener detailListener = new DetailValuePropertyListener(
						source, masterElement);
				IPropertyChangeListener listener = detailListener.wrapper = detailProperty
						.adaptListener(detailListener);
				detailProperty.addPropertyChangeListener(masterElement,
						listener);
				masterElementToDetailListener
						.put(masterElement, detailListener);
			}

			sourceToMasterElementToDetailListener.put(source,
					masterElementToDetailListener);
		}

		protected void removeListenerFrom(Object source) {
			masterProperty.removePropertyChangeListener(source, masterListener);
			Map masterElementToDetailListener = (Map) sourceToMasterElementToDetailListener
					.remove(source);
			if (masterElementToDetailListener != null) {
				for (Iterator it = masterElementToDetailListener.entrySet()
						.iterator(); it.hasNext();) {
					Map.Entry entry = (Map.Entry) it.next();
					detailProperty
							.removePropertyChangeListener(entry.getKey(),
									((DetailValuePropertyListener) entry
											.getValue()).wrapper);
				}
			}
		}

		private class MasterListPropertyListener implements
				IListPropertyChangeListener {
			public void handleListPropertyChange(ListPropertyChangeEvent event) {
				Object source = event.getSource();
				ListDiffEntry[] masterEntries = event.diff.getDifferences();
				ListDiffEntry[] detailEntries = new ListDiffEntry[masterEntries.length];
				Set masterElementsAdded = new HashSet();
				Set masterElementsRemoved = new HashSet();
				for (int i = 0; i < masterEntries.length; i++) {
					ListDiffEntry masterDifference = masterEntries[i];
					int index = masterDifference.getPosition();
					boolean addition = masterDifference.isAddition();
					Object masterElement = masterDifference.getElement();
					Object elementDetailValue = detailProperty
							.getValue(masterElement);
					detailEntries[i] = Diffs.createListDiffEntry(index,
							addition, elementDetailValue);
					if (addition)
						masterElementsAdded.add(masterElement);
					else
						masterElementsRemoved.add(masterElement);
				}

				ListDiff diff = Diffs.createListDiff(detailEntries);

				for (Iterator it = masterElementsRemoved.iterator(); it
						.hasNext();) {
					Object element = it.next();
					if (!masterProperty.contains(source, element))
						removeElementPropertyListener(source, element);
				}
				for (Iterator it = masterElementsAdded.iterator(); it.hasNext();) {
					Object element = it.next();
					if (masterProperty.contains(source, element))
						addElementPropertyListener(source, element);
				}

				fireListChange(source, diff);
			}

			private void addElementPropertyListener(Object source,
					Object element) {
				Map elementToDetailListener = (Map) sourceToMasterElementToDetailListener
						.get(source);
				if (elementToDetailListener == null) {
					sourceToMasterElementToDetailListener.put(source,
							elementToDetailListener = new HashMap());
				}
				if (!elementToDetailListener.containsKey(element)) {
					DetailValuePropertyListener detailListener = new DetailValuePropertyListener(
							source, element);
					IPropertyChangeListener listener = detailListener.wrapper = detailProperty
							.adaptListener(detailListener);
					detailProperty.addPropertyChangeListener(element, listener);
					elementToDetailListener.put(element, detailListener);
				}
			}

			private void removeElementPropertyListener(Object source,
					Object element) {
				Map elementToDetailListener = (Map) sourceToMasterElementToDetailListener
						.get(source);
				if (elementToDetailListener != null
						&& elementToDetailListener.containsKey(element)) {
					DetailValuePropertyListener detailListener = (DetailValuePropertyListener) elementToDetailListener
							.remove(element);
					detailProperty.removePropertyChangeListener(element,
							detailListener.wrapper);
				}
			}
		}

		private class DetailValuePropertyListener implements
				IValuePropertyChangeListener {
			private Object source;
			private Object masterElement;
			private IPropertyChangeListener wrapper;

			DetailValuePropertyListener(Object source, Object masterElement) {
				this.source = source;
				this.masterElement = masterElement;
			}

			private int[] findIndices() {
				List indices = new ArrayList();

				List list = masterProperty.getList(source);
				for (ListIterator it = list.listIterator(); it.hasNext();) {
					if (Util.equals(masterElement, it.next()))
						indices.add(new Integer(it.previousIndex()));
				}

				int[] result = new int[indices.size()];
				for (int i = 0; i < result.length; i++) {
					result[i] = ((Integer) indices.get(i)).intValue();
				}
				return result;
			}

			public void handleValuePropertyChange(ValuePropertyChangeEvent event) {
				int[] indices = findIndices();
				Object oldValue = event.diff.getOldValue();
				Object newValue = event.diff.getNewValue();
				ListDiffEntry[] entries = new ListDiffEntry[indices.length * 2];
				for (int i = 0; i < indices.length; i++) {
					int index = indices[i];
					entries[i * 2] = Diffs.createListDiffEntry(index, false,
							oldValue);
					entries[i * 2 + 1] = Diffs.createListDiffEntry(index, true,
							newValue);
				}

				ListDiff diff = Diffs.createListDiff(entries);
				fireListChange(source, diff);
			}
		}

	}
}




/*******************************************************************************
 * Copyright (c) 2008 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import org.eclipse.core.databinding.observable.IObserving;

/**
 * Provides access to the details of property observables
 * 
 * @since 1.2
 */
public interface IPropertyObservable extends IObserving {
	/**
	 * Returns the property being observed
	 * 
	 * @return the property being observed
	 */
	IProperty getProperty();
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property.masterdetail;

import java.util.HashMap;
import java.util.Map;

import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.map.MapDiff;
import org.eclipse.core.databinding.property.IMapProperty;
import org.eclipse.core.databinding.property.IMapPropertyChangeListener;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.databinding.property.IValuePropertyChangeListener;
import org.eclipse.core.databinding.property.MapProperty;
import org.eclipse.core.databinding.property.MapPropertyChangeEvent;
import org.eclipse.core.databinding.property.ValuePropertyChangeEvent;

/**
 * @since 3.3
 * 
 */
public class ValuePropertyDetailMap extends MapProperty {
	private final IValueProperty masterProperty;
	private final IMapProperty detailProperty;

	/**
	 * @param masterProperty
	 * @param detailProperty
	 */
	public ValuePropertyDetailMap(IValueProperty masterProperty,
			IMapProperty detailProperty) {
		this.masterProperty = masterProperty;
		this.detailProperty = detailProperty;
	}

	public Map getMap(Object source) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.getMap(masterValue);
	}

	public void clear(Object source) {
		Object masterValue = masterProperty.getValue(source);
		detailProperty.clear(masterValue);
	}

	public Object put(Object source, Object key, Object value) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.put(masterValue, key, value);
	}

	public void putAll(Object source, Map t) {
		Object masterValue = masterProperty.getValue(source);
		detailProperty.putAll(masterValue, t);
	}

	public Object remove(Object source, Object key) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.remove(masterValue, key);
	}

	public IPropertyChangeListener adaptListener(
			IMapPropertyChangeListener listener) {
		return new ListenerAdaptor(listener);
	}

	public void addPropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		((ListenerAdaptor) listener).addListenerTo(source);
	}

	public void removePropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		((ListenerAdaptor) listener).removeListenerFrom(source);
	}

	private class ListenerAdaptor implements IPropertyChangeListener {
		private final IMapPropertyChangeListener wrapped;

		private IPropertyChangeListener masterListener;
		private Map sourceToDetailListener = new HashMap();

		ListenerAdaptor(IMapPropertyChangeListener wrapped) {
			this.wrapped = wrapped;

			IValuePropertyChangeListener masterValueListener = new MasterValueListener();
			masterListener = masterProperty.adaptListener(masterValueListener);
		}

		private void fireMapChange(Object source, MapDiff diff) {
			wrapped.handleMapPropertyChange(new MapPropertyChangeEvent(source,
					ValuePropertyDetailMap.this, diff));
		}

		protected void addListenerTo(Object source) {
			masterProperty.addPropertyChangeListener(source, masterListener);
			addDetailPropertyListener(source);
		}

		protected void removeListenerFrom(Object source) {
			masterProperty.removePropertyChangeListener(source, masterListener);
			removeDetailPropertyListener(source);
		}

		private void addDetailPropertyListener(Object source) {
			Object masterValue = masterProperty.getValue(source);
			DetailPropertyListener detailListener = new DetailPropertyListener(
					source, masterValue);
			IPropertyChangeListener listener = detailListener.wrapper = detailProperty
					.adaptListener(detailListener);
			detailProperty.addPropertyChangeListener(masterValue, listener);
			sourceToDetailListener.put(source, detailListener);
		}

		private void removeDetailPropertyListener(Object source) {
			DetailPropertyListener detailListener = (DetailPropertyListener) sourceToDetailListener
					.remove(source);
			if (detailListener != null) {
				detailProperty.removePropertyChangeListener(
						detailListener.masterValue, detailListener.wrapper);
			}
			sourceToDetailListener.remove(source);
		}

		private class MasterValueListener implements
				IValuePropertyChangeListener {
			public void handleValuePropertyChange(ValuePropertyChangeEvent event) {
				Object oldSource = event.diff.getOldValue();
				Object newSource = event.diff.getNewValue();

				Map oldMap = detailProperty.getMap(oldSource);
				Map newMap = detailProperty.getMap(newSource);
				MapDiff diff = Diffs.computeMapDiff(oldMap, newMap);

				Object source = event.getSource();

				removeDetailPropertyListener(source);
				addDetailPropertyListener(source);

				fireMapChange(source, diff);
			}
		}

		private class DetailPropertyListener implements
				IMapPropertyChangeListener {
			private Object source;
			private Object masterValue;
			private IPropertyChangeListener wrapper;

			DetailPropertyListener(Object source, Object masterValue) {
				this.source = source;
				this.masterValue = masterValue;
			}

			public void handleMapPropertyChange(MapPropertyChangeEvent event) {
				fireMapChange(source, event.diff);
			}
		}

	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

/**
 * Listener for changes to set properties on a property source
 * 
 * @since 1.2
 */
public interface ISetPropertyChangeListener {
	/**
	 * Handle a change to a set property on a specific property source.
	 * 
	 * @param event
	 *            an event describing the set change that occured.
	 */
	public void handleSetPropertyChange(SetPropertyChangeEvent event);
}




/*******************************************************************************
 * Copyright (c) 2008 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

/**
 * Abstract set property implementation for properties where the set can be
 * completely replaced in a single atomic operation.
 * <p>
 * For example, a set-typed bean property Customer.addresses can be modified by
 * calling Customer.setAddresses(List addresses).
 * 
 * @since 1.2
 */
public abstract class BasicSetProperty extends SetProperty {
	/**
	 * Sets the set property on the source to the specified set.
	 * 
	 * @param source
	 *            the property source
	 * @param set
	 *            the new set
	 */
	protected abstract void setSet(Object source, Set set);

	public boolean add(Object source, Object o) {
		Set set = getSet(source);
		if (!set.contains(o)) {
			set = new HashSet(set);
			boolean added = set.add(o);
			if (added)
				setSet(source, set);
			return added;
		}
		return false;
	}

	public boolean addAll(Object source, Collection c) {
		if (c.isEmpty())
			return false;

		Set set = new HashSet(getSet(source));
		boolean changed = false;
		for (Iterator it = c.iterator(); it.hasNext();) {
			if (set.add(it.next())) {
				changed = true;
			}
		}
		if (changed) {
			setSet(source, set);
		}
		return changed;
	}

	public void clear(Object source) {
		if (!isEmpty(source))
			setSet(source, new HashSet());
	}

	public boolean remove(Object source, Object o) {
		Set set = getSet(source);
		if (!set.contains(o))
			return false;

		set = new HashSet(set);
		boolean removed = set.remove(o);
		if (removed) {
			setSet(source, set);
		}
		return removed;
	}

	public boolean removeAll(Object source, Collection c) {
		if (c.isEmpty())
			return false;

		Set set = new HashSet(getSet(source));
		boolean changed = false;
		for (Iterator it = set.iterator(); it.hasNext();) {
			Object o = it.next();
			if (c.contains(o)) {
				it.remove();
				changed = true;
			}
		}
		if (changed) {
			setSet(source, set);
		}
		return changed;
	}

	public boolean retainAll(Object source, Collection c) {
		Set set = getSet(source);

		if (set.isEmpty())
			return false;

		if (c.isEmpty()) {
			clear(source);
			return true;
		}

		set = new HashSet(set);
		boolean changed = false;
		for (Iterator it = set.iterator(); it.hasNext();) {
			Object o = it.next();
			if (!c.contains(o)) {
				it.remove();
				changed = true;
			}
		}
		if (changed) {
			setSet(source, set);
		}
		return changed;
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import java.util.EventObject;

import org.eclipse.core.databinding.observable.map.MapDiff;
import org.eclipse.core.runtime.Assert;

/**
 * Map change event describing an incremental change of a map property on a
 * particular property source.
 * 
 * @since 1.2
 */
public class MapPropertyChangeEvent extends EventObject {
	private static final long serialVersionUID = 1L;

	/**
	 * The map property that changed
	 */
	public final IMapProperty property;

	/**
	 * MapDiff enumerating the added, changed, and removed entries in the map.
	 */
	public final MapDiff diff;

	/**
	 * Constructs a MapPropertyChangeEvent with the given attributes
	 * 
	 * @param source
	 *            the property source
	 * @param property
	 *            the property that changed on the source
	 * @param diff
	 *            a MapDiff describing the changes to the map property
	 */
	public MapPropertyChangeEvent(Object source, IMapProperty property,
			MapDiff diff) {
		super(source);
		this.property = property;
		Assert.isNotNull(diff, "diff cannot be null"); //$NON-NLS-1$
		this.diff = diff;
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import java.util.EventObject;

import org.eclipse.core.databinding.observable.list.ListDiff;
import org.eclipse.core.runtime.Assert;

/**
 * List change event describing an incremental change of a list property on a
 * particular property source.
 * 
 * @since 1.2
 */
public class ListPropertyChangeEvent extends EventObject {
	private static final long serialVersionUID = 1L;

	/**
	 * The list property that changed
	 */
	public final IListProperty property;

	/**
	 * ListDiff enumerating the added and removed elements in the list.
	 */
	public final ListDiff diff;

	/**
	 * Constructs a ListPropertyChangeEvent with the given attributes
	 * 
	 * @param source
	 *            the property source
	 * @param property
	 *            the property that changed on the source
	 * @param diff
	 *            a ListDiff describing the changes to the list property
	 */
	public ListPropertyChangeEvent(Object source, IListProperty property,
			ListDiff diff) {
		super(source);
		this.property = property;
		Assert.isNotNull(diff, "diff cannot be null"); //$NON-NLS-1$
		this.diff = diff;
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property.masterdetail;

import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.map.MapDiff;
import org.eclipse.core.databinding.property.IMapProperty;
import org.eclipse.core.databinding.property.IMapPropertyChangeListener;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.databinding.property.IValuePropertyChangeListener;
import org.eclipse.core.databinding.property.MapProperty;
import org.eclipse.core.databinding.property.MapPropertyChangeEvent;
import org.eclipse.core.databinding.property.ValuePropertyChangeEvent;
import org.eclipse.core.internal.databinding.Util;

/**
 * @since 3.3
 * 
 */
public class MapPropertyDetailValueMap extends MapProperty {
	private final IMapProperty masterProperty;
	private final IValueProperty detailProperty;

	/**
	 * @param masterProperty
	 * @param detailProperty
	 */
	public MapPropertyDetailValueMap(IMapProperty masterProperty,
			IValueProperty detailProperty) {
		this.masterProperty = masterProperty;
		this.detailProperty = detailProperty;
	}

	public Map getMap(Object source) {
		Map result = new HashMap();
		for (Iterator it = masterProperty.getMap(source).entrySet().iterator(); it
				.hasNext();) {
			Map.Entry entry = (Map.Entry) it.next();
			result.put(entry.getKey(), detailProperty
					.getValue(entry.getValue()));
		}
		return result;
	}

	public void clear(Object source) {
		throw new UnsupportedOperationException();
	}

	public Object put(Object source, Object key, Object value) {
		if (!masterProperty.containsKey(source, key))
			return null;
		Object masterValue = masterProperty.get(source, key);

		Object result = detailProperty.getValue(masterValue);
		detailProperty.setValue(masterValue, value);
		return result;
	}

	public void putAll(Object source, Map t) {
		for (Iterator it = t.entrySet().iterator(); it.hasNext();) {
			Map.Entry entry = (Map.Entry) it.next();
			Object masterKey = entry.getKey();
			Object detailValue = entry.getValue();
			if (masterProperty.getMap(source).containsKey(masterKey)) {
				detailProperty.setValue(masterKey, detailValue);
			}
		}
	}

	public Object remove(Object source, Object key) {
		throw new UnsupportedOperationException();
	}

	public IPropertyChangeListener adaptListener(
			IMapPropertyChangeListener listener) {
		return new ListenerAdaptor(listener);
	}

	public void addPropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		((ListenerAdaptor) listener).addListenerTo(source);
	}

	public void removePropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		((ListenerAdaptor) listener).removeListenerFrom(source);
	}

	private class ListenerAdaptor implements IPropertyChangeListener {
		private final IMapPropertyChangeListener wrapped;

		private IPropertyChangeListener masterListener;
		private Map sourceToKeyToDetailListener = new HashMap();

		ListenerAdaptor(IMapPropertyChangeListener wrapped) {
			this.wrapped = wrapped;

			IMapPropertyChangeListener masterMapListener = new MasterMapPropertyListener();
			masterListener = masterProperty.adaptListener(masterMapListener);
		}

		private void fireMapChange(Object source, MapDiff diff) {
			wrapped.handleMapPropertyChange(new MapPropertyChangeEvent(source,
					MapPropertyDetailValueMap.this, diff));
		}

		protected void addListenerTo(Object source) {
			masterProperty.addPropertyChangeListener(source, masterListener);

			Map keyToDetailListener = new HashMap();
			for (Iterator it = masterProperty.getMap(source).entrySet()
					.iterator(); it.hasNext();) {
				Map.Entry entry = (Map.Entry) it.next();
				Object key = entry.getKey();
				Object masterValue = entry.getValue();
				DetailValuePropertyListener detailListener = new DetailValuePropertyListener(
						source, key);
				IPropertyChangeListener listener = detailListener.wrapper = detailProperty
						.adaptListener(detailListener);
				detailProperty.addPropertyChangeListener(masterValue, listener);
				keyToDetailListener.put(masterValue, detailListener);
			}

			sourceToKeyToDetailListener.put(source, keyToDetailListener);
		}

		protected void removeListenerFrom(Object source) {
			masterProperty.removePropertyChangeListener(source, masterListener);
			Map masterElementToDetailListener = (Map) sourceToKeyToDetailListener
					.remove(source);
			if (masterElementToDetailListener != null) {
				for (Iterator it = masterElementToDetailListener.entrySet()
						.iterator(); it.hasNext();) {
					Map.Entry entry = (Map.Entry) it.next();
					detailProperty
							.removePropertyChangeListener(entry.getKey(),
									((DetailValuePropertyListener) entry
											.getValue()).wrapper);
				}
			}
		}

		private class MasterMapPropertyListener implements
				IMapPropertyChangeListener {
			public void handleMapPropertyChange(
					final MapPropertyChangeEvent event) {
				Object source = event.getSource();

				Map oldValues = new HashMap();
				Map newValues = new HashMap();

				Set addedKeys = event.diff.getAddedKeys();
				for (Iterator it = addedKeys.iterator(); it.hasNext();) {
					Object key = it.next();
					Object newMasterValue = event.diff.getNewValue(key);
					Object newDetailValue = detailProperty
							.getValue(newMasterValue);
					newValues.put(key, newDetailValue);
					addPropertySourceListener(source, key, newMasterValue);
				}

				Set removedKeys = event.diff.getRemovedKeys();
				for (Iterator it = removedKeys.iterator(); it.hasNext();) {
					Object key = it.next();
					Object oldMasterValue = event.diff.getOldValue(key);
					Object oldDetailValue = detailProperty
							.getValue(oldMasterValue);
					oldValues.put(key, oldDetailValue);
					removePropertySourceListener(source, key, oldMasterValue);
				}

				Set changedKeys = new HashSet(event.diff.getChangedKeys());
				for (Iterator it = changedKeys.iterator(); it.hasNext();) {
					Object key = it.next();

					Object oldMasterValue = event.diff.getOldValue(key);
					Object newMasterValue = event.diff.getNewValue(key);

					Object oldDetailValue = detailProperty
							.getValue(oldMasterValue);
					Object newDetailValue = detailProperty
							.getValue(newMasterValue);

					if (Util.equals(oldDetailValue, newDetailValue)) {
						it.remove();
					} else {
						oldValues.put(key, oldDetailValue);
						newValues.put(key, newDetailValue);
					}

					removePropertySourceListener(source, key, oldMasterValue);
					addPropertySourceListener(source, key, newMasterValue);
				}

				MapDiff diff = Diffs.createMapDiff(addedKeys, removedKeys,
						changedKeys, oldValues, newValues);

				fireMapChange(source, diff);
			}

			private void addPropertySourceListener(Object source, Object key,
					Object masterValue) {
				Map keyToDetailListener = (Map) sourceToKeyToDetailListener
						.get(source);
				if (keyToDetailListener == null) {
					sourceToKeyToDetailListener.put(source,
							keyToDetailListener = new HashMap());
				}
				if (!keyToDetailListener.containsKey(key)) {
					DetailValuePropertyListener detailListener = new DetailValuePropertyListener(
							source, key);
					IPropertyChangeListener listener = detailListener.wrapper = detailProperty
							.adaptListener(detailListener);
					detailProperty.addPropertyChangeListener(masterValue,
							listener);
					keyToDetailListener.put(key, detailListener);
				}
			}

			private void removePropertySourceListener(Object source,
					Object key, Object masterValue) {
				Map keyToDetailListener = (Map) sourceToKeyToDetailListener
						.get(source);
				if (keyToDetailListener != null
						&& keyToDetailListener.containsKey(key)) {
					DetailValuePropertyListener detailListener = (DetailValuePropertyListener) keyToDetailListener
							.remove(key);
					detailProperty.removePropertyChangeListener(masterValue,
							detailListener.wrapper);
				}
			}
		}

		private class DetailValuePropertyListener implements
				IValuePropertyChangeListener {
			private Object source;
			private Object key;
			private IPropertyChangeListener wrapper;

			DetailValuePropertyListener(Object source, Object key) {
				this.source = source;
				this.key = key;
			}

			public void handleValuePropertyChange(ValuePropertyChangeEvent event) {
				fireMapChange(source, Diffs.createMapDiffSingleChange(key,
						event.diff.getOldValue(), event.diff.getNewValue()));
			}
		}

	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import java.util.Collection;

/**
 * Interface for collection-typed properties.
 * 
 * @since 1.2
 * @noimplement This interface is not intended to be implemented by clients.
 */
public interface ICollectionProperty extends IProperty {
	/**
	 * Returns the size of the source's collection property
	 * 
	 * @param source
	 *            the property source
	 * @return the size of the source's collection property
	 */
	int size(Object source);

	/**
	 * Returns whether the source's collection property is empty
	 * 
	 * @param source
	 *            the property source
	 * @return whether the source's collection property is empty
	 */
	boolean isEmpty(Object source);

	/**
	 * Returns whether the source's collection property contains the given
	 * element.
	 * 
	 * @param source
	 *            the property source
	 * @param o
	 *            the element
	 * @return whether the source's collection property contains the given
	 *         element.
	 */
	boolean contains(Object source, Object o);

	/**
	 * Returns an array of all elements in the source's collection property
	 * 
	 * @param source
	 *            the property source
	 * @return an array of all elements in the source's collection property
	 */
	Object[] toArray(Object source);

	/**
	 * Returns an array of all elements in the source's collection property
	 * 
	 * @param source
	 *            the property source
	 * @param array
	 *            the array into which the elements will be copied. If the array
	 *            is not large enough to hold all elements, the elements will be
	 *            returned in a new array of the same runtime type.
	 * @return an array of all elements in the source's collection property
	 */
	Object[] toArray(Object source, Object[] array);

	/**
	 * Adds the element to the source's collection property
	 * 
	 * @param source
	 *            the property source
	 * @param o
	 *            the element to add
	 * @return whether the element was added to the source's collection property
	 */
	boolean add(Object source, Object o);

	/**
	 * Removes the element from the source's collection property
	 * 
	 * @param source
	 *            the property source
	 * @param o
	 *            the element to remove
	 * @return whether the element was removed from the source's collection
	 *         property
	 */
	boolean remove(Object source, Object o);

	/**
	 * Returns whether the source's collection property contains all elements in
	 * the given collection
	 * 
	 * @param source
	 *            the property source
	 * @param c
	 *            the collection of elements to test for
	 * @return whether the source's collection property contains all elements in
	 *         the given collection
	 */
	boolean containsAll(Object source, Collection c);

	/**
	 * Adds all elements in the specified collection to the source's collection
	 * property.
	 * 
	 * @param source
	 *            the property source
	 * @param c
	 *            the collection of elements to add.
	 * @return whether the source's collection property was changed
	 */
	boolean addAll(Object source, Collection c);

	/**
	 * Removes all elements from the source's collection property which are
	 * contained in the specified collection.
	 * 
	 * @param source
	 *            the property source
	 * @param c
	 *            the collection of elements to be removed
	 * @return whether the source's collection property was changed
	 */
	boolean removeAll(Object source, Collection c);

	/**
	 * Removes all elements from the source's collection property which are not
	 * contained in the specified collection.
	 * 
	 * @param source
	 *            the property source
	 * @param c
	 *            the collection of elements to retain
	 * @return whether the source's collection property was changed
	 */
	boolean retainAll(Object source, Collection c);

	/**
	 * Removes all elements from the source's collection property.
	 * 
	 * @param source
	 *            the property source
	 */
	void clear(Object source);

	/**
	 * Returns whether the source's collection property is equal to the
	 * argument.
	 * 
	 * @param source
	 *            the property source
	 * @param o
	 *            the object to test for equality to the source's collection
	 *            property
	 * @return whether the source's collection property is equal to the argument
	 */
	boolean equals(Object source, Object o);

	/**
	 * Returns the hash code of the source's collection property.
	 * 
	 * @param source
	 *            the property source
	 * @return the hash code of the source's collection property
	 */
	int hashCode(Object source);

	/**
	 * Returns the type of the elements in the collection or <code>null</code>
	 * if untyped
	 * 
	 * @return the type of the elements in the collection or <code>null</code>
	 *         if untyped
	 */
	Object getElementType();
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import org.eclipse.core.databinding.observable.IObservable;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.list.IObservableList;
import org.eclipse.core.databinding.observable.map.IObservableMap;
import org.eclipse.core.databinding.observable.masterdetail.IObservableFactory;
import org.eclipse.core.databinding.observable.masterdetail.MasterDetailObservables;
import org.eclipse.core.databinding.observable.set.IObservableSet;
import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.core.internal.databinding.property.ListValuePropertyObservableList;
import org.eclipse.core.internal.databinding.property.MapValuePropertyObservableMap;
import org.eclipse.core.internal.databinding.property.PropertyObservableList;
import org.eclipse.core.internal.databinding.property.PropertyObservableMap;
import org.eclipse.core.internal.databinding.property.PropertyObservableSet;
import org.eclipse.core.internal.databinding.property.PropertyObservableValue;
import org.eclipse.core.internal.databinding.property.SetValuePropertyObservableMap;

/**
 * A factory for creating observables observing properties of source objects
 * 
 * @since 1.2
 */
public class PropertyObservables {
	/**
	 * Returns an observable value on the default realm that tracks the given
	 * property of the source object.
	 * 
	 * @param source
	 *            the property value
	 * @param property
	 *            the value property to observe
	 * @return an observable value on the default realm that tracks the given
	 *         property of the source object.
	 * @since 1.2
	 */
	public static IObservableValue observeValue(Object source,
			IValueProperty property) {
		return observeValue(Realm.getDefault(), source, property);
	}

	/**
	 * Returns an observable value on the given realm that tracks the given
	 * property of the source object
	 * 
	 * @param realm
	 *            the realm
	 * @param source
	 *            the property source
	 * @param property
	 *            the value property observe
	 * @return an observable value that tracks the given property of the source
	 *         object
	 * @since 1.2
	 */
	public static IObservableValue observeValue(Realm realm, Object source,
			IValueProperty property) {
		return new PropertyObservableValue(realm, source, property);
	}

	/**
	 * Returns a factory for creating observable values on the default realm
	 * tracking the given property of a particular source object
	 * 
	 * @param property
	 *            the property to observe
	 * @return a factory for creating observable values on the default realm
	 *         tracking the given property of a particular source object
	 */
	public static IObservableFactory valueFactory(IValueProperty property) {
		return valueFactory(Realm.getDefault(), property);
	}

	/**
	 * Returns a factory for creating observable values on the given realm
	 * tracking the given property of a particular source object
	 * 
	 * @param realm
	 *            the realm
	 * @param property
	 *            the property to observe
	 * @return a factory for creating observable values on the given realm
	 *         tracking the given property of a particular source object
	 */
	public static IObservableFactory valueFactory(final Realm realm,
			final IValueProperty property) {
		return new IObservableFactory() {
			public IObservable createObservable(Object target) {
				return observeValue(realm, target, property);
			}
		};
	}

	/**
	 * Returns an observable value on the master observable's realm which tracks
	 * the given property of the current value of <code>master</code>.
	 * 
	 * @param master
	 *            the master observable
	 * @param property
	 *            the property to observe
	 * @return an observable value which tracks the given property of the
	 *         current value of <code>master</code>.
	 */
	public static IObservableValue observeDetailValue(IObservableValue master,
			IValueProperty property) {
		return MasterDetailObservables.detailValue(master, valueFactory(master
				.getRealm(), property), property.getValueType());
	}

	/**
	 * Returns an observable set on the default realm that tracks the given
	 * property of the source object
	 * 
	 * @param source
	 *            the property source
	 * @param property
	 *            the property to observe
	 * @return an observable set on the default realm that tracks the given
	 *         property of the source object
	 */
	public static IObservableSet observeSet(Object source, ISetProperty property) {
		return observeSet(Realm.getDefault(), source, property);
	}

	/**
	 * Returns an observable set on the given realm that tracks the given
	 * property of the source object
	 * 
	 * @param realm
	 *            the realm
	 * @param source
	 *            the property source
	 * @param property
	 *            the property to observe
	 * @return an observable set on the given realm that tracks the given
	 *         property of the source object
	 */
	public static IObservableSet observeSet(Realm realm, Object source,
			ISetProperty property) {
		return new PropertyObservableSet(realm, source, property);
	}

	/**
	 * Returns a factory for creating observable sets on the default realm
	 * tracking the given property of a particular source object
	 * 
	 * @param property
	 *            the property to be observed
	 * @return a factory for creating observable sets on the default realm
	 *         tracking the given property of a particular source object
	 */
	public static IObservableFactory setFactory(ISetProperty property) {
		return setFactory(Realm.getDefault(), property);
	}

	/**
	 * Returns a factory for creating obervable sets on the given realm tracking
	 * the given property of a particular source object
	 * 
	 * @param realm
	 *            the realm
	 * @param property
	 *            the property to be observed
	 * @return a factory for creating obervable sets on the given realm tracking
	 *         the given property of a particular source object
	 */
	public static IObservableFactory setFactory(final Realm realm,
			final ISetProperty property) {
		return new IObservableFactory() {
			public IObservable createObservable(Object target) {
				return observeSet(realm, target, property);
			}
		};
	}

	/**
	 * Returns an observable set on the master observable's realm which tracks
	 * the given property of the current value of <code>master</code>.
	 * 
	 * @param master
	 *            the master observable
	 * @param property
	 *            the property to observe
	 * @return an observable set on the given realm which tracks the given
	 *         property of the current value of <code>master</code>.
	 */
	public static IObservableSet observeDetailSet(IObservableValue master,
			ISetProperty property) {
		return MasterDetailObservables.detailSet(master, setFactory(master
				.getRealm(), property), property.getElementType());
	}

	/**
	 * Returns an observable list on the default realm that tracks the given
	 * property of the source object
	 * 
	 * @param source
	 *            the property source
	 * @param property
	 *            the property to observe
	 * @return an observable list on the default realm that tracks the given
	 *         property of the source object
	 */
	public static IObservableList observeList(Object source,
			IListProperty property) {
		return observeList(Realm.getDefault(), source, property);
	}

	/**
	 * Returns an observable list on the given realm that tracks the given
	 * property of the source object
	 * 
	 * @param realm
	 *            the realm
	 * @param source
	 *            the property source
	 * @param property
	 *            the property to observe
	 * @return an observable list on the given realm that tracks the given
	 *         property of the source object
	 */
	public static IObservableList observeList(Realm realm, Object source,
			IListProperty property) {
		return new PropertyObservableList(realm, source, property);
	}

	/**
	 * Returns a factory for creating observable lists on the default realm
	 * tracking the given property of a particular source object
	 * 
	 * @param property
	 *            the property to be observed
	 * @return an observable value factory on
	 */
	public static IObservableFactory listFactory(IListProperty property) {
		return listFactory(Realm.getDefault(), property);
	}

	/**
	 * Returns a factory for creating obervable lists on the given realm
	 * tracking the given property of a particular source object
	 * 
	 * @param realm
	 *            the realm
	 * @param property
	 *            the property to be observed
	 * @return an observable value factory on
	 */
	public static IObservableFactory listFactory(final Realm realm,
			final IListProperty property) {
		return new IObservableFactory() {
			public IObservable createObservable(Object target) {
				return observeList(realm, target, property);
			}
		};
	}

	/**
	 * Returns an observable list on the master observable's realm which tracks
	 * the given property of the current value of <code>master</code>.
	 * 
	 * @param master
	 *            the master observable
	 * @param property
	 *            the property to observe
	 * @return an observable list on the given realm which tracks the given
	 *         property of the current value of <code>master</code>.
	 */
	public static IObservableList observeDetailList(IObservableValue master,
			IListProperty property) {
		return MasterDetailObservables.detailList(master, listFactory(master
				.getRealm(), property), property.getElementType());
	}

	/**
	 * Returns an observable list on the master observable's realm which tracks
	 * the given property of each element of <code>master</code>.
	 * 
	 * @param master
	 *            the master observable
	 * @param property
	 *            the property to observe on each element in the master
	 *            observable
	 * @return an observable
	 */
	public static IObservableList observeDetailValues(IObservableList master,
			IValueProperty property) {
		return new ListValuePropertyObservableList(master, property);
	}

	/**
	 * Returns an observable map on the default realm which tracks the given
	 * property of the source object
	 * 
	 * @param source
	 *            the property source
	 * @param property
	 *            the property to observe
	 * @return an observable map on the default realm which tracks the given
	 *         property of the source object
	 */
	public static IObservableMap observeMap(Object source, IMapProperty property) {
		return observeMap(Realm.getDefault(), source, property);
	}

	/**
	 * Returns an observable map on the given realm which tracks the given
	 * property of the source object
	 * 
	 * @param realm
	 *            the realm
	 * @param source
	 *            the property source
	 * @param property
	 *            the property to observe
	 * @return an observable map on the given realm which tracks the given
	 *         property of the source object
	 */
	public static IObservableMap observeMap(Realm realm, Object source,
			IMapProperty property) {
		return new PropertyObservableMap(realm, source, property);
	}

	/**
	 * Returns an observable map on the master observable's realm tracking the
	 * current values of the given property for the elements in the given set.
	 * 
	 * @param keySet
	 *            the master observable
	 * @param valueProperty
	 *            the property to observe on each element of the master
	 *            observable
	 * @return an observable map that tracks the current value of the given
	 *         property for the elements in the given set.
	 */
	public static IObservableMap observeDetailValues(IObservableSet keySet,
			IValueProperty valueProperty) {
		return new SetValuePropertyObservableMap(keySet, valueProperty);
	}

	/**
	 * Returns an observable map on the master observable's realm which tracks
	 * the current values of the given property for the entry values in the
	 * given map.
	 * 
	 * @param map
	 *            the master observable
	 * @param valueProperty
	 *            the property to observe on each entry value in the master
	 *            observable
	 * @return an observable map on the master observable's realm which tracks
	 *         the current value of the given property for the elements in the
	 *         given map's values collection
	 */
	public static IObservableMap observeDetailValues(IObservableMap map,
			IValueProperty valueProperty) {
		return new MapValuePropertyObservableMap(map, valueProperty);
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property.masterdetail;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.set.SetDiff;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.ISetProperty;
import org.eclipse.core.databinding.property.ISetPropertyChangeListener;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.databinding.property.IValuePropertyChangeListener;
import org.eclipse.core.databinding.property.SetProperty;
import org.eclipse.core.databinding.property.SetPropertyChangeEvent;
import org.eclipse.core.databinding.property.ValuePropertyChangeEvent;

/**
 * @since 3.3
 * 
 */
public class ValuePropertyDetailSet extends SetProperty {
	private final IValueProperty masterProperty;
	private final ISetProperty detailProperty;

	/**
	 * @param masterProperty
	 * @param detailProperty
	 */
	public ValuePropertyDetailSet(IValueProperty masterProperty,
			ISetProperty detailProperty) {
		this.masterProperty = masterProperty;
		this.detailProperty = detailProperty;
	}

	public Set getSet(Object source) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.getSet(masterValue);
	}

	public boolean add(Object source, Object o) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.add(masterValue, o);
	}

	public boolean addAll(Object source, Collection c) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.addAll(masterValue, c);
	}

	public void clear(Object source) {
		Object masterValue = masterProperty.getValue(source);
		detailProperty.clear(masterValue);
	}

	public Object getElementType() {
		return detailProperty.getElementType();
	}

	public boolean remove(Object source, Object o) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.remove(masterValue, o);
	}

	public boolean removeAll(Object source, Collection c) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.removeAll(masterValue, c);
	}

	public boolean retainAll(Object source, Collection c) {
		Object masterValue = masterProperty.getValue(source);
		return detailProperty.retainAll(masterValue, c);
	}

	public IPropertyChangeListener adaptListener(
			ISetPropertyChangeListener listener) {
		return new ListenerAdaptor(listener);
	}

	public void addPropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		((ListenerAdaptor) listener).addListenerTo(source);
	}

	public void removePropertyChangeListener(Object source,
			IPropertyChangeListener listener) {
		((ListenerAdaptor) listener).removeListenerFrom(source);
	}

	private class ListenerAdaptor implements IPropertyChangeListener {
		private final ISetPropertyChangeListener wrapped;

		private IPropertyChangeListener masterListener;
		private Map sourceToDetailListener = new HashMap();

		ListenerAdaptor(ISetPropertyChangeListener wrapped) {
			this.wrapped = wrapped;

			IValuePropertyChangeListener masterValueListener = new MasterPropertyListener();
			masterListener = masterProperty.adaptListener(masterValueListener);
		}

		private void fireSetChange(Object source, SetDiff diff) {
			wrapped.handleSetPropertyChange(new SetPropertyChangeEvent(source,
					ValuePropertyDetailSet.this, diff));
		}

		protected void addListenerTo(Object source) {
			masterProperty.addPropertyChangeListener(source, masterListener);
			addDetailPropertyListener(source);
		}

		protected void removeListenerFrom(Object source) {
			masterProperty.removePropertyChangeListener(source, masterListener);
			removeDetailPropertyListener(source);
		}

		private void addDetailPropertyListener(Object source) {
			Object masterValue = masterProperty.getValue(source);
			DetailSetPropertyListener detailListener = new DetailSetPropertyListener(
					source, masterValue);
			IPropertyChangeListener listener = detailListener.wrapper = detailProperty
					.adaptListener(detailListener);
			detailProperty.addPropertyChangeListener(masterValue, listener);
			sourceToDetailListener.put(source, detailListener);
		}

		private void removeDetailPropertyListener(Object source) {
			DetailSetPropertyListener detailListener = (DetailSetPropertyListener) sourceToDetailListener
					.remove(source);
			if (detailListener != null) {
				detailProperty.removePropertyChangeListener(
						detailListener.masterValue, detailListener.wrapper);
			}
			sourceToDetailListener.remove(source);
		}

		private class MasterPropertyListener implements
				IValuePropertyChangeListener {
			public void handleValuePropertyChange(ValuePropertyChangeEvent event) {
				Object oldSource = event.diff.getOldValue();
				Object newSource = event.diff.getNewValue();

				Set oldSet = detailProperty.getSet(oldSource);
				Set newSet = detailProperty.getSet(newSource);
				SetDiff diff = Diffs.computeSetDiff(oldSet, newSet);

				Object source = event.getSource();

				removeDetailPropertyListener(source);
				addDetailPropertyListener(source);

				fireSetChange(source, diff);
			}
		}

		private class DetailSetPropertyListener implements
				ISetPropertyChangeListener {
			private Object source;
			private Object masterValue;
			private IPropertyChangeListener wrapper;

			DetailSetPropertyListener(Object source, Object masterValue) {
				this.source = source;
				this.masterValue = masterValue;
			}

			public void handleSetPropertyChange(SetPropertyChangeEvent event) {
				fireSetChange(source, event.diff);
			}
		}
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.ConcurrentModificationException;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;

import org.eclipse.core.databinding.observable.ObservableTracker;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.list.AbstractObservableList;
import org.eclipse.core.databinding.property.IListProperty;
import org.eclipse.core.databinding.property.IListPropertyChangeListener;
import org.eclipse.core.databinding.property.IProperty;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.IPropertyObservable;
import org.eclipse.core.databinding.property.ListPropertyChangeEvent;

/**
 * @since 3.3
 * 
 */
public class PropertyObservableList extends AbstractObservableList implements
		IPropertyObservable {
	private Object source;
	private IListProperty property;

	private volatile boolean updating = false;

	private boolean disposed = false;

	private transient volatile int modCount = 0;

	private IPropertyChangeListener listener;

	/**
	 * @param realm
	 * @param source
	 * @param property
	 */
	public PropertyObservableList(Realm realm, Object source,
			IListProperty property) {
		super(realm);
		this.source = source;
		this.property = property;
		
		IListPropertyChangeListener listListener = new IListPropertyChangeListener() {
			public void handleListPropertyChange(final ListPropertyChangeEvent event) {
				if (!disposed && !updating) {
					getRealm().exec(new Runnable() {
						public void run() {
							getRealm().exec(new Runnable() {
								public void run() {
									modCount++;
									fireListChange(event.diff);
								}
							});
						}
					});
				}
			}
		};
		this.listener = property.adaptListener(listListener);
	}

	protected void firstListenerAdded() {
		if (!disposed) {
			property.addPropertyChangeListener(source, listener);
		}
	}

	protected void lastListenerRemoved() {
		if (!disposed) {
			property.removePropertyChangeListener(source, listener);
		}
	}

	private void getterCalled() {
		ObservableTracker.getterCalled(this);
	}

	public Object getElementType() {
		return property.getElementType();
	}

	// Queries

	protected int doGetSize() {
		return property.size(source);
	}

	public boolean contains(Object o) {
		getterCalled();
		return property.contains(source, o);
	}

	public boolean containsAll(Collection c) {
		getterCalled();
		return property.containsAll(source, c);
	}

	public Object get(int index) {
		getterCalled();
		return property.get(source, index);
	}

	public int indexOf(Object o) {
		getterCalled();
		return property.indexOf(source, o);
	}

	public boolean isEmpty() {
		getterCalled();
		return property.isEmpty(source);
	}

	public int lastIndexOf(Object o) {
		getterCalled();
		return property.lastIndexOf(source, o);
	}

	public Object[] toArray() {
		getterCalled();
		return property.toArray(source);
	}

	public Object[] toArray(Object[] a) {
		getterCalled();
		return property.toArray(source, a);
	}

	// Single change operations

	public boolean add(Object o) {
		checkRealm();
		return property.add(source, o);
	}

	public Iterator iterator() {
		getterCalled();
		return new Iterator() {
			int lastReturned = -1;
			int expectedModCount = modCount;
			ListIterator delegate = new ArrayList(property.getList(source))
					.listIterator();

			public boolean hasNext() {
				getterCalled();
				checkForComodification();
				return delegate.hasNext();
			}

			public Object next() {
				getterCalled();
				checkForComodification();
				Object next = delegate.next();
				lastReturned = delegate.previousIndex();
				return next;
			}

			public void remove() {
				checkRealm();
				checkForComodification();
				if (lastReturned == -1)
					throw new IllegalStateException();

				delegate.remove(); // stay in sync

				property.remove(source, lastReturned);

				lastReturned = -1;
				expectedModCount = modCount;
			}

			private void checkForComodification() {
				if (expectedModCount != modCount)
					throw new ConcurrentModificationException();
			}
		};
	}

	public Object move(int oldIndex, int newIndex) {
		getterCalled();
		return property.move(source, oldIndex, newIndex);
	}

	public boolean remove(Object o) {
		getterCalled();
		return property.remove(source, o);
	}

	public void add(int index, Object o) {
		getterCalled();
		property.add(source, index, o);
	}

	public ListIterator listIterator() {
		return listIterator(0);
	}

	public ListIterator listIterator(final int index) {
		getterCalled();
		return new ListIterator() {
			int lastReturned = -1;
			int expectedModCount = modCount;
			ListIterator delegate = new ArrayList(property.getList(source))
					.listIterator(index);

			public boolean hasNext() {
				getterCalled();
				checkForComodification();
				return delegate.hasNext();
			}

			public int nextIndex() {
				getterCalled();
				checkForComodification();
				return delegate.nextIndex();
			}

			public Object next() {
				getterCalled();
				checkForComodification();
				Object next = delegate.next();
				lastReturned = delegate.previousIndex();
				return next;
			}

			public boolean hasPrevious() {
				getterCalled();
				checkForComodification();
				return delegate.hasPrevious();
			}

			public int previousIndex() {
				getterCalled();
				checkForComodification();
				return delegate.previousIndex();
			}

			public Object previous() {
				getterCalled();
				checkForComodification();
				Object previous = delegate.previous();
				lastReturned = delegate.nextIndex();
				return previous;
			}

			public void add(Object o) {
				checkRealm();
				checkForComodification();
				int index = delegate.nextIndex();

				delegate.add(o); // keep in sync

				property.add(source, index, o);

				lastReturned = -1;
				expectedModCount = modCount;
			}

			public void set(Object o) {
				checkRealm();
				checkForComodification();

				delegate.set(o);

				property.set(source, lastReturned, o);

				expectedModCount = modCount;
			}

			public void remove() {
				checkRealm();
				checkForComodification();
				if (lastReturned == -1)
					throw new IllegalStateException();

				delegate.remove(); // keep in sync

				property.remove(source, lastReturned);

				lastReturned = -1;
				expectedModCount = modCount;
			}

			private void checkForComodification() {
				if (expectedModCount != modCount)
					throw new ConcurrentModificationException();
			}

		};
	}

	public Object remove(int index) {
		getterCalled();
		return property.remove(source, index);
	}

	public Object set(int index, Object o) {
		getterCalled();
		return property.set(source, index, o);
	}

	public List subList(int fromIndex, int toIndex) {
		getterCalled();
		return Collections.unmodifiableList(property.getList(source).subList(
				fromIndex, toIndex));
	}

	// Bulk change operations

	public boolean addAll(Collection c) {
		getterCalled();
		return property.addAll(source, c);
	}

	public boolean addAll(int index, Collection c) {
		getterCalled();
		return property.addAll(source, index, c);
	}

	public boolean removeAll(Collection c) {
		getterCalled();
		return property.removeAll(source, c);
	}

	public boolean retainAll(Collection c) {
		getterCalled();
		return property.retainAll(source, c);
	}

	public void clear() {
		getterCalled();
		property.clear(source);
	}

	public boolean equals(Object o) {
		getterCalled();
		return property.equals(source, o);
	}

	public int hashCode() {
		getterCalled();
		return property.hashCode(source);
	}

	public Object getObserved() {
		return source;
	}

	public IProperty getProperty() {
		return property;
	}

	public synchronized void dispose() {
		if (!disposed) {
			disposed = true;
			property.removePropertyChangeListener(source, listener);
			property = null;
			source = null;
		}
		super.dispose();
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property;

import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;

import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.IObserving;
import org.eclipse.core.databinding.observable.ObservableTracker;
import org.eclipse.core.databinding.observable.list.AbstractObservableList;
import org.eclipse.core.databinding.observable.list.IListChangeListener;
import org.eclipse.core.databinding.observable.list.IObservableList;
import org.eclipse.core.databinding.observable.list.ListChangeEvent;
import org.eclipse.core.databinding.observable.list.ListDiff;
import org.eclipse.core.databinding.observable.list.ListDiffEntry;
import org.eclipse.core.databinding.observable.set.IObservableSet;
import org.eclipse.core.databinding.observable.set.ISetChangeListener;
import org.eclipse.core.databinding.observable.set.SetChangeEvent;
import org.eclipse.core.databinding.observable.set.WritableSet;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.databinding.property.IValuePropertyChangeListener;
import org.eclipse.core.databinding.property.ValuePropertyChangeEvent;
import org.eclipse.core.internal.databinding.Util;

/**
 * @since 3.3
 * 
 */
public class ListValuePropertyObservableList extends AbstractObservableList
		implements IObserving {
	private IObservableList masterList;
	private IValueProperty detailProperty;

	private IObservableSet knownMasterElements;

	private boolean disposed = false;

	private IListChangeListener masterListener = new IListChangeListener() {
		public void handleListChange(ListChangeEvent event) {
			ListDiffEntry[] masterEntries = event.diff.getDifferences();
			ListDiffEntry[] detailEntries = new ListDiffEntry[masterEntries.length];
			for (int i = 0; i < masterEntries.length; i++) {
				ListDiffEntry masterDifference = masterEntries[i];
				int index = masterDifference.getPosition();
				boolean addition = masterDifference.isAddition();
				Object masterElement = masterDifference.getElement();
				Object elementDetailValue = detailProperty
						.getValue(masterElement);
				detailEntries[i] = Diffs.createListDiffEntry(index, addition,
						elementDetailValue);
			}

			// Removes listeners from elements removed from list
			knownMasterElements.retainAll(masterList);

			// Adds listeners to elements added to list
			knownMasterElements.addAll(masterList);

			fireListChange(Diffs.createListDiff(detailEntries));
		}
	};

	private final class DetailValuePropertyChangeListener implements
			IValuePropertyChangeListener {
		public void handleValuePropertyChange(
				final ValuePropertyChangeEvent event) {
			if (!disposed) {
				Object source = event.getSource();
				int[] indices = findIndices(source);
				Object oldValue = event.diff.getOldValue();
				Object newValue = event.diff.getNewValue();
				ListDiffEntry[] entries = new ListDiffEntry[indices.length * 2];
				for (int i = 0; i < indices.length; i++) {
					int index = indices[i];
					entries[i * 2] = Diffs.createListDiffEntry(index, false,
							oldValue);
					entries[i * 2 + 1] = Diffs.createListDiffEntry(index, true,
							newValue);
				}

				ListDiff diff = Diffs.createListDiff(entries);
				fireListChange(diff);
			}
		}

		private int[] findIndices(Object masterElement) {
			List indices = new ArrayList();

			for (ListIterator it = masterList.listIterator(); it.hasNext();) {
				if (Util.equals(masterElement, it.next()))
					indices.add(new Integer(it.previousIndex()));
			}

			int[] result = new int[indices.size()];
			for (int i = 0; i < result.length; i++) {
				result[i] = ((Integer) indices.get(i)).intValue();
			}
			return result;
		}
	}

	private IPropertyChangeListener detailListener;

	/**
	 * @param masterList
	 * @param valueProperty
	 */
	public ListValuePropertyObservableList(IObservableList masterList,
			IValueProperty valueProperty) {
		super(masterList.getRealm());
		this.masterList = masterList;
		this.detailProperty = valueProperty;

		IValuePropertyChangeListener detailValueListener = new DetailValuePropertyChangeListener();
		this.detailListener = detailProperty.adaptListener(detailValueListener);
	}

	protected void firstListenerAdded() {
		knownMasterElements = new WritableSet(getRealm());
		knownMasterElements.addSetChangeListener(new ISetChangeListener() {
			public void handleSetChange(SetChangeEvent event) {
				for (Iterator it = event.diff.getRemovals().iterator(); it
						.hasNext();) {
					detailProperty.addPropertyChangeListener(it.next(),
							detailListener);
				}
				for (Iterator it = event.diff.getAdditions().iterator(); it
						.hasNext();) {
					detailProperty.removePropertyChangeListener(it.next(),
							detailListener);
				}
			}
		});
		knownMasterElements.addAll(masterList);
		masterList.addListChangeListener(masterListener);
	}

	protected void lastListenerRemoved() {
		masterList.removeListChangeListener(masterListener);
		if (knownMasterElements != null) {
			knownMasterElements.clear();
			knownMasterElements.dispose();
			knownMasterElements = null;
		}
	}

	protected int doGetSize() {
		getterCalled();
		return masterList.size();
	}

	private void getterCalled() {
		ObservableTracker.getterCalled(this);
	}

	public Object getElementType() {
		return detailProperty.getValueType();
	}

	public Object get(int index) {
		getterCalled();
		Object masterElement = masterList.get(index);
		return detailProperty.getValue(masterElement);
	}

	public boolean add(Object o) {
		throw new UnsupportedOperationException();
	}

	public boolean addAll(Collection c) {
		throw new UnsupportedOperationException();
	}

	public boolean addAll(int index, Collection c) {
		throw new UnsupportedOperationException();
	}

	public boolean contains(Object o) {
		getterCalled();

		Iterator it;
		if (knownMasterElements != null)
			it = knownMasterElements.iterator();
		else
			it = masterList.iterator();
		for (; it.hasNext();) {
			if (Util.equals(detailProperty.getValue(it.next()), o))
				return true;
		}
		return false;
	}

	public boolean isEmpty() {
		getterCalled();
		return masterList.isEmpty();
	}

	public boolean isStale() {
		getterCalled();
		return masterList.isStale();
	}

	public Iterator iterator() {
		getterCalled();
		return new Iterator() {
			Iterator it = masterList.iterator();

			public boolean hasNext() {
				getterCalled();
				return it.hasNext();
			}

			public Object next() {
				getterCalled();
				Object masterElement = it.next();
				return detailProperty.getValue(masterElement);
			}

			public void remove() {
				throw new UnsupportedOperationException();
			}
		};
	}

	public Object move(int oldIndex, int newIndex) {
		throw new UnsupportedOperationException();
	}

	public boolean remove(Object o) {
		throw new UnsupportedOperationException();
	}

	public boolean removeAll(Collection c) {
		throw new UnsupportedOperationException();
	}

	public boolean retainAll(Collection c) {
		throw new UnsupportedOperationException();
	}

	public Object[] toArray() {
		getterCalled();
		Object[] masterElements = masterList.toArray();
		Object[] result = new Object[masterElements.length];
		for (int i = 0; i < result.length; i++) {
			result[i] = detailProperty.getValue(masterElements[i]);
		}
		return result;
	}

	public Object[] toArray(Object[] a) {
		getterCalled();
		Object[] masterElements = masterList.toArray();
		if (a.length < masterElements.length)
			a = (Object[]) Array.newInstance(a.getClass().getComponentType(),
					masterElements.length);
		for (int i = 0; i < masterElements.length; i++) {
			a[i] = detailProperty.getValue(masterElements[i]);
		}
		return a;
	}

	public void add(int index, Object o) {
		throw new UnsupportedOperationException();
	}

	public void clear() {
		throw new UnsupportedOperationException();
	}

	public ListIterator listIterator() {
		return listIterator(0);
	}

	public ListIterator listIterator(final int index) {
		getterCalled();
		return new ListIterator() {
			ListIterator it = masterList.listIterator(index);
			Object lastReturned;
			boolean haveIterated = false;

			public void add(Object arg0) {
				throw new UnsupportedOperationException();
			}

			public boolean hasNext() {
				getterCalled();
				return it.hasNext();
			}

			public boolean hasPrevious() {
				getterCalled();
				return it.hasPrevious();
			}

			public Object next() {
				getterCalled();
				Object result = lastReturned = detailProperty.getValue(it
						.next());
				haveIterated = true;
				return result;
			}

			public int nextIndex() {
				getterCalled();
				return it.nextIndex();
			}

			public Object previous() {
				getterCalled();
				Object result = lastReturned = detailProperty.getValue(it
						.previous());
				haveIterated = true;
				return result;
			}

			public int previousIndex() {
				getterCalled();
				return it.previousIndex();
			}

			public void remove() {
				throw new UnsupportedOperationException();
			}

			public void set(Object o) {
				checkRealm();
				if (!haveIterated)
					throw new IllegalStateException();
				// if listeners are registered, the value property listener will
				// cause the list change event to fire. otherwise it doesn't
				// matter because noone is listening
				detailProperty.setValue(lastReturned, o);
			}
		};
	}

	public Object remove(int index) {
		throw new UnsupportedOperationException();
	}

	public Object set(int index, Object o) {
		checkRealm();
		Object masterElement = masterList.get(index);
		Object oldValue = detailProperty.getValue(masterElement);
		detailProperty.setValue(masterElement, o);
		return oldValue;
	}

	public Object getObserved() {
		return masterList;
	}

	public synchronized void dispose() {
		if (masterList != null) {
			masterList.removeListChangeListener(masterListener);
			masterList = null;
			masterListener = null;
		}
		if (knownMasterElements != null) {
			knownMasterElements.clear();
			knownMasterElements.dispose();
			knownMasterElements = null;
			detailListener = null;
		}
		detailProperty = null;
		disposed = true;

		super.dispose();
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property;

import java.util.Collection;
import java.util.ConcurrentModificationException;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.set.AbstractObservableSet;
import org.eclipse.core.databinding.property.IProperty;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.IPropertyObservable;
import org.eclipse.core.databinding.property.ISetProperty;
import org.eclipse.core.databinding.property.ISetPropertyChangeListener;
import org.eclipse.core.databinding.property.SetPropertyChangeEvent;

/**
 * @since 3.3
 * 
 */
public class PropertyObservableSet extends AbstractObservableSet implements
		IPropertyObservable {
	private Object source;
	private ISetProperty property;

	private boolean updating = false;

	private boolean disposed = false;

	private transient volatile int modCount = 0;

	private IPropertyChangeListener listener;

	/**
	 * @param realm
	 * @param source
	 * @param property
	 */
	public PropertyObservableSet(Realm realm, Object source,
			ISetProperty property) {
		super(realm);
		this.source = source;
		this.property = property;

		ISetPropertyChangeListener setListener = new ISetPropertyChangeListener() {
			public void handleSetPropertyChange(
					final SetPropertyChangeEvent event) {
				if (!disposed && !updating) {
					getRealm().exec(new Runnable() {
						public void run() {
							getRealm().exec(new Runnable() {
								public void run() {
									modCount++;
									fireSetChange(event.diff);
								}
							});
						}
					});
				}
			}
		};
		listener = property.adaptListener(setListener);
	}

	protected void firstListenerAdded() {
		if (!disposed) {
			property.addPropertyChangeListener(source, listener);
		}
	}

	protected void lastListenerRemoved() {
		if (!disposed) {
			property.removePropertyChangeListener(source, listener);
		}
	}

	protected Set getWrappedSet() {
		return property.getSet(source);
	}

	public Object getElementType() {
		return property.getElementType();
	}

	// Queries

	protected int doGetSize() {
		return property.size(source);
	}

	// Single change operations

	public boolean add(Object o) {
		checkRealm();
		return property.add(source, o);
	}

	public Iterator iterator() {
		getterCalled();
		return new Iterator() {
			int expectedModCount = modCount;
			Iterator delegate = new HashSet(property.getSet(source)).iterator();
			Object last = null;

			public boolean hasNext() {
				getterCalled();
				checkForComodification();
				return delegate.hasNext();
			}

			public Object next() {
				getterCalled();
				checkForComodification();
				Object next = delegate.next();
				last = next;
				return next;
			}

			public void remove() {
				checkRealm();
				checkForComodification();

				delegate.remove(); // stay in sync

				property.remove(source, last);

				last = null;
				expectedModCount = modCount;
			}

			private void checkForComodification() {
				if (expectedModCount != modCount)
					throw new ConcurrentModificationException();
			}
		};
	}

	public boolean remove(Object o) {
		getterCalled();
		return property.remove(source, o);
	}

	// Bulk change operations

	public boolean addAll(Collection c) {
		getterCalled();
		return property.addAll(source, c);
	}

	public boolean removeAll(Collection c) {
		getterCalled();
		return property.removeAll(source, c);
	}

	public boolean retainAll(Collection c) {
		getterCalled();
		return property.retainAll(source, c);
	}

	public void clear() {
		getterCalled();
		property.clear(source);
	}

	public boolean equals(Object o) {
		return property.equals(source, o);
	}

	public int hashCode() {
		return property.hashCode(source);
	}

	public Object getObserved() {
		return source;
	}

	public IProperty getProperty() {
		return property;
	}

	public synchronized void dispose() {
		if (!disposed) {
			disposed = true;
			property.removePropertyChangeListener(source, listener);
			property = null;
			source = null;
		}
		super.dispose();
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation
 ******************************************************************************/

package org.eclipse.core.databinding.property;

/**
 * Marker interface for "native" property change listeners which wrap a
 * particular property change listener.
 * 
 * @see IValuePropertyChangeListener
 * @see ISetPropertyChangeListener
 * @see IListPropertyChangeListener
 * @see IMapPropertyChangeListener
 * @since 1.2
 */
public interface IPropertyChangeListener {
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

import java.util.Collection;

/**
 * Abstract implementation of ICollectionProperty.
 * 
 * @since 1.2
 */
public abstract class CollectionProperty implements ICollectionProperty {
	abstract Collection getCollection(Object source);

	public boolean contains(Object source, Object o) {
		return getCollection(source).contains(o);
	}

	public boolean containsAll(Object source, Collection c) {
		return getCollection(source).containsAll(c);
	}

	public boolean equals(Object source, Object o) {
		return getCollection(source).equals(o);
	}

	public int hashCode(Object source) {
		return getCollection(source).hashCode();
	}

	public boolean isEmpty(Object source) {
		return getCollection(source).isEmpty();
	}

	public int size(Object source) {
		return getCollection(source).size();
	}

	public Object[] toArray(Object source, Object[] array) {
		return getCollection(source).toArray(array);
	}

	public Object[] toArray(Object source) {
		return getCollection(source).toArray();
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property;

import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.IObserving;
import org.eclipse.core.databinding.observable.map.ComputedObservableMap;
import org.eclipse.core.databinding.observable.set.IObservableSet;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.databinding.property.IValuePropertyChangeListener;
import org.eclipse.core.databinding.property.ValuePropertyChangeEvent;

/**
 * @since 3.3
 * 
 */
public class SetValuePropertyObservableMap extends ComputedObservableMap
		implements IObserving {
	private IValueProperty property;

	private boolean disposed = false;

	private IPropertyChangeListener listener;

	/**
	 * @param keySet
	 * @param valueProperty
	 */
	public SetValuePropertyObservableMap(IObservableSet keySet,
			IValueProperty valueProperty) {
		super(keySet);
		this.property = valueProperty;

		IValuePropertyChangeListener valueListener = new IValuePropertyChangeListener() {
			public void handleValuePropertyChange(
					final ValuePropertyChangeEvent event) {
				if (!disposed) {
					getRealm().exec(new Runnable() {
						public void run() {
							Object key = event.getSource();
							Object oldValue = event.diff.getOldValue();
							Object newValue = event.diff.getNewValue();
							fireMapChange(Diffs.createMapDiffSingleChange(key,
									oldValue, newValue));
						}
					});
				}
			}
		};
		this.listener = property.adaptListener(valueListener);
	}

	protected Object doGet(Object key) {
		return property.getValue(key);
	}

	protected Object doPut(Object key, Object value) {
		Object result = property.getValue(key);
		property.setValue(key, value);
		return result;
	}

	protected void hookListener(Object addedKey) {
		if (!disposed)
			property.addPropertyChangeListener(addedKey, listener);
	}

	protected void unhookListener(Object removedKey) {
		if (!disposed)
			property.removePropertyChangeListener(removedKey, listener);
	}

	public Object getObserved() {
		return keySet();
	}

	public synchronized void dispose() {
		super.dispose();

		if (!disposed) {
			disposed = true;
			property = null;
			listener = null;
		}
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.internal.databinding.property;

import org.eclipse.core.databinding.observable.Diffs;
import org.eclipse.core.databinding.observable.Realm;
import org.eclipse.core.databinding.observable.value.AbstractObservableValue;
import org.eclipse.core.databinding.property.IProperty;
import org.eclipse.core.databinding.property.IPropertyChangeListener;
import org.eclipse.core.databinding.property.IPropertyObservable;
import org.eclipse.core.databinding.property.IValueProperty;
import org.eclipse.core.databinding.property.IValuePropertyChangeListener;
import org.eclipse.core.databinding.property.ValuePropertyChangeEvent;
import org.eclipse.core.internal.databinding.Util;

/**
 * @since 1.2
 * 
 */
public class PropertyObservableValue extends AbstractObservableValue implements
		IPropertyObservable {
	private Object source;
	private IValueProperty property;

	private boolean updating = false;

	private boolean disposed = false;

	private IPropertyChangeListener listener;

	/**
	 * @param realm
	 * @param source
	 * @param property
	 */
	public PropertyObservableValue(Realm realm, Object source,
			IValueProperty property) {
		super(realm);
		this.source = source;
		this.property = property;

		IValuePropertyChangeListener valueListener = new IValuePropertyChangeListener() {
			public void handleValuePropertyChange(
					final ValuePropertyChangeEvent event) {
				if (!disposed && !updating) {
					getRealm().exec(new Runnable() {
						public void run() {
							fireValueChange(event.diff);
						}
					});
				}
			}
		};
		this.listener = property.adaptListener(valueListener);
	}

	protected void firstListenerAdded() {
		if (!disposed) {
			property.addPropertyChangeListener(source, listener);
		}
	}

	protected void lastListenerRemoved() {
		if (!disposed) {
			property.removePropertyChangeListener(source, listener);
		}
	}

	protected Object doGetValue() {
		return property.getValue(source);
	}

	protected void doSetValue(Object value) {
		Object oldValue = doGetValue();

		updating = true;
		try {
			property.setValue(source, value);
		} finally {
			updating = false;
		}

		Object newValue = doGetValue();
		if (!Util.equals(oldValue, newValue)) {
			fireValueChange(Diffs.createValueDiff(oldValue, newValue));
		}
	}

	public Object getValueType() {
		return property.getValueType();
	}

	public Object getObserved() {
		return source;
	}

	public IProperty getProperty() {
		return property;
	}

	public synchronized void dispose() {
		if (!disposed) {
			disposed = true;
			property.removePropertyChangeListener(source, listener);
			property = null;
			listener = null;
			source = null;
		}
		super.dispose();
	}
}




/*******************************************************************************
 * Copyright (c) 2008 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Matthew Hall - initial API and implementation (bug 194734)
 ******************************************************************************/

package org.eclipse.core.databinding.property;

/**
 * Listener for changes to list properties on a property source
 * 
 * @since 1.2
 */
public interface IListPropertyChangeListener {
	/**
	 * Handle a change to a list property on a specific property source.
	 * 
	 * @param event
	 *            an event describing the list change that occured.
	 */
	public void handleListPropertyChange(ListPropertyChangeEvent event);
}

Return to bug 194734

Lines 7-13 Link Here

(-)src/org/eclipse/core/tests/internal/databinding/beans/JavaBeanObservableMapTest.java (-9 / +22 lines)
7	*	7	*
8	* Contributors:	8	* Contributors:
9	* IBM Corporation - initial API and implementation	9	* IBM Corporation - initial API and implementation
10	* Matthew Hall - bugs 213145, 241585	10	* Matthew Hall - bugs 213145, 241585, 194734
11	*******************************************************************************/	11	*******************************************************************************/
12		12
13	package org.eclipse.core.tests.internal.databinding.beans;	13	package org.eclipse.core.tests.internal.databinding.beans;
Lines 19-30 Link Here
19	import junit.framework.TestCase;	19	import junit.framework.TestCase;
20	import junit.framework.TestSuite;	20	import junit.framework.TestSuite;
21		21
		22	import org.eclipse.core.databinding.beans.BeanProperties;
		23	import org.eclipse.core.databinding.beans.BeansObservables;
		24	import org.eclipse.core.databinding.beans.IBeanObservable;
		25	import org.eclipse.core.databinding.beans.IBeanProperty;
		26	import org.eclipse.core.databinding.beans.PojoObservables;
22	import org.eclipse.core.databinding.observable.Realm;	27	import org.eclipse.core.databinding.observable.Realm;
23	import org.eclipse.core.databinding.observable.map.IMapChangeListener;	28	import org.eclipse.core.databinding.observable.map.IMapChangeListener;
		29	import org.eclipse.core.databinding.observable.map.IObservableMap;
24	import org.eclipse.core.databinding.observable.map.MapChangeEvent;	30	import org.eclipse.core.databinding.observable.map.MapChangeEvent;
25	import org.eclipse.core.databinding.observable.map.MapDiff;	31	import org.eclipse.core.databinding.observable.map.MapDiff;
26	import org.eclipse.core.databinding.observable.set.WritableSet;	32	import org.eclipse.core.databinding.observable.set.WritableSet;
27	import org.eclipse.core.internal.databinding.beans.JavaBeanObservableMap;
28	import org.eclipse.core.tests.databinding.observable.ThreadRealm;	33	import org.eclipse.core.tests.databinding.observable.ThreadRealm;
29	import org.eclipse.jface.databinding.conformance.util.ChangeEventTracker;	34	import org.eclipse.jface.databinding.conformance.util.ChangeEventTracker;
30	import org.eclipse.jface.databinding.conformance.util.CurrentRealm;	35	import org.eclipse.jface.databinding.conformance.util.CurrentRealm;
Lines 42-48 Link Here
42		47
43	private PropertyDescriptor propertyDescriptor;	48	private PropertyDescriptor propertyDescriptor;
44		49
45	private JavaBeanObservableMap map;	50	private IObservableMap map;
		51	private IBeanObservable beanObservable;
46		52
47	protected void setUp() throws Exception {	53	protected void setUp() throws Exception {
48	ThreadRealm realm = new ThreadRealm();	54	ThreadRealm realm = new ThreadRealm();
Lines 54-61 Link Here
54	set.add(model1);	60	set.add(model1);
55	set.add(model2);	61	set.add(model2);
56		62
57	propertyDescriptor = new PropertyDescriptor("value", Bean.class);	63	String propertyName = "value";
58	map = new JavaBeanObservableMap(set, propertyDescriptor);	64	propertyDescriptor = ((IBeanProperty) BeanProperties.valueProperty(
		65	Bean.class, propertyName)).getPropertyDescriptor();
		66	map = BeansObservables.observeMap(set, Bean.class, propertyName);
		67	beanObservable = (IBeanObservable) map;
59	}	68	}
60		69
61	public void testGetValue() throws Exception {	70	public void testGetValue() throws Exception {
Lines 135-145 Link Here
135	}	144	}
136		145
137	public void testGetObserved() throws Exception {	146	public void testGetObserved() throws Exception {
138	assertEquals(set, map.getObserved());	147	assertEquals(set, beanObservable.getObserved());
139	}	148	}
140		149
141	public void testGetPropertyDescriptor() throws Exception {	150	public void testGetPropertyDescriptor() throws Exception {
142	assertEquals(propertyDescriptor, map.getPropertyDescriptor());	151	assertEquals(propertyDescriptor, beanObservable.getPropertyDescriptor());
143	}	152	}
144		153
145	public void testConstructor_SkipRegisterListeners() throws Exception {	154	public void testConstructor_SkipRegisterListeners() throws Exception {
Lines 148-154 Link Here
148	Bean bean = new Bean();	157	Bean bean = new Bean();
149	set.add(bean);	158	set.add(bean);
150		159
151	JavaBeanObservableMap observable = new JavaBeanObservableMap(set, new PropertyDescriptor("value", Bean.class), false);	160	IObservableMap observable = PojoObservables.observeMap(set, Bean.class,
		161	"value");
		162	assertFalse(bean.hasListeners("value"));
152	ChangeEventTracker.observe(observable);	163	ChangeEventTracker.observe(observable);
153		164
154	assertFalse(bean.hasListeners("value"));	165	assertFalse(bean.hasListeners("value"));
Lines 160-166 Link Here
160	Bean bean = new Bean();	171	Bean bean = new Bean();
161	set.add(bean);	172	set.add(bean);
162		173
163	JavaBeanObservableMap observable = new JavaBeanObservableMap(set, new PropertyDescriptor("value", Bean.class));	174	IObservableMap observable = BeansObservables.observeMap(set,
		175	Bean.class, "value");
		176	assertFalse(bean.hasListeners("value"));
164	ChangeEventTracker.observe(observable);	177	ChangeEventTracker.observe(observable);
165		178
166	assertTrue(bean.hasListeners("value"));	179	assertTrue(bean.hasListeners("value"));

Lines 9-33 Link Here

(-)src/org/eclipse/core/tests/internal/databinding/beans/JavaBeanObservableValueTest.java (-26 / +22 lines)
9	* Brad Reynolds - initial API and implementation	9	* Brad Reynolds - initial API and implementation
10	* Brad Reynolds - bug 171616	10	* Brad Reynolds - bug 171616
11	* Katarzyna Marszalek - test case for bug 198519	11	* Katarzyna Marszalek - test case for bug 198519
12	* Matthew Hall - bug 213145	12	* Matthew Hall - bugs 213145, 194734
13	******************************************************************************/	13	******************************************************************************/
14		14
15	package org.eclipse.core.tests.internal.databinding.beans;	15	package org.eclipse.core.tests.internal.databinding.beans;
16		16
17	import java.beans.IntrospectionException;
18	import java.beans.PropertyDescriptor;	17	import java.beans.PropertyDescriptor;
19		18
20	import junit.framework.Test;	19	import junit.framework.Test;
21	import junit.framework.TestSuite;	20	import junit.framework.TestSuite;
22		21
		22	import org.eclipse.core.databinding.beans.BeanProperties;
23	import org.eclipse.core.databinding.beans.BeansObservables;	23	import org.eclipse.core.databinding.beans.BeansObservables;
		24	import org.eclipse.core.databinding.beans.IBeanObservable;
		25	import org.eclipse.core.databinding.beans.IBeanProperty;
		26	import org.eclipse.core.databinding.beans.PojoObservables;
24	import org.eclipse.core.databinding.observable.ChangeEvent;	27	import org.eclipse.core.databinding.observable.ChangeEvent;
25	import org.eclipse.core.databinding.observable.IChangeListener;	28	import org.eclipse.core.databinding.observable.IChangeListener;
26	import org.eclipse.core.databinding.observable.IObservable;	29	import org.eclipse.core.databinding.observable.IObservable;
27	import org.eclipse.core.databinding.observable.Realm;	30	import org.eclipse.core.databinding.observable.Realm;
28	import org.eclipse.core.databinding.observable.value.ComputedValue;	31	import org.eclipse.core.databinding.observable.value.ComputedValue;
29	import org.eclipse.core.databinding.observable.value.IObservableValue;	32	import org.eclipse.core.databinding.observable.value.IObservableValue;
30	import org.eclipse.core.internal.databinding.beans.JavaBeanObservableValue;
31	import org.eclipse.jface.databinding.conformance.MutableObservableValueContractTest;	33	import org.eclipse.jface.databinding.conformance.MutableObservableValueContractTest;
32	import org.eclipse.jface.databinding.conformance.delegate.AbstractObservableValueContractDelegate;	34	import org.eclipse.jface.databinding.conformance.delegate.AbstractObservableValueContractDelegate;
33	import org.eclipse.jface.databinding.conformance.util.ChangeEventTracker;	35	import org.eclipse.jface.databinding.conformance.util.ChangeEventTracker;
Lines 39-73 Link Here
39	*/	41	*/
40	public class JavaBeanObservableValueTest extends AbstractDefaultRealmTestCase {	42	public class JavaBeanObservableValueTest extends AbstractDefaultRealmTestCase {
41	private Bean bean;	43	private Bean bean;
42	private JavaBeanObservableValue observableValue;	44	private IObservableValue observableValue;
		45	private IBeanObservable beanObservable;
43	private PropertyDescriptor propertyDescriptor;	46	private PropertyDescriptor propertyDescriptor;
44	private String propertyName;	47	private String propertyName;
45		48
46	/* (non-Javadoc)
47	* @see junit.framework.TestCase#setUp()
48	*/
49	protected void setUp() throws Exception {	49	protected void setUp() throws Exception {
50	super.setUp();	50	super.setUp();
51		51
52	bean = new Bean();	52	bean = new Bean();
53	propertyName = "value";	53	propertyName = "value";
54	propertyDescriptor = new PropertyDescriptor(propertyName, Bean.class);	54	propertyDescriptor = ((IBeanProperty) BeanProperties.valueProperty(
55	observableValue = new JavaBeanObservableValue(Realm.getDefault(), bean, propertyDescriptor);	55	Bean.class, propertyName)).getPropertyDescriptor();
		56	observableValue = BeansObservables.observeValue(bean, propertyName);
		57	beanObservable = (IBeanObservable) observableValue;
56	}	58	}
57		59
58	public void testGetObserved() throws Exception {	60	public void testGetObserved() throws Exception {
59	assertEquals(bean, observableValue.getObserved());	61	assertEquals(bean, beanObservable.getObserved());
60	}	62	}
61		63
62	public void testGetPropertyDescriptor() throws Exception {	64	public void testGetPropertyDescriptor() throws Exception {
63	assertEquals(propertyDescriptor, observableValue.getPropertyDescriptor());	65	assertEquals(propertyDescriptor, beanObservable.getPropertyDescriptor());
64	}	66	}
65		67
66	public void testSetValueThrowsExceptionThrownByBean() throws Exception {	68	public void testSetValueThrowsExceptionThrownByBean() throws Exception {
67	ThrowsSetException temp = new ThrowsSetException();	69	ThrowsSetException temp = new ThrowsSetException();
68	JavaBeanObservableValue observable = new JavaBeanObservableValue(Realm	70	IObservableValue observable = BeansObservables.observeValue(temp,
69	.getDefault(), temp,	71	"value");
70	new PropertyDescriptor("value", ThrowsSetException.class));
71		72
72	try {	73	try {
73	observable.setValue("");	74	observable.setValue("");
Lines 79-87 Link Here
79		80
80	public void testGetValueThrowsExceptionThrownByBean() throws Exception {	81	public void testGetValueThrowsExceptionThrownByBean() throws Exception {
81	ThrowsGetException temp = new ThrowsGetException();	82	ThrowsGetException temp = new ThrowsGetException();
82	JavaBeanObservableValue observable = new JavaBeanObservableValue(Realm	83	IObservableValue observable = BeansObservables.observeValue(temp,
83	.getDefault(), temp,	84	"value");
84	new PropertyDescriptor("value", ThrowsGetException.class));
85		85
86	try {	86	try {
87	observable.getValue();	87	observable.getValue();
Lines 108-121 Link Here
108	}	108	}
109		109
110	public void testConstructor_RegistersListeners() throws Exception {	110	public void testConstructor_RegistersListeners() throws Exception {
111	JavaBeanObservableValue observable = new JavaBeanObservableValue(Realm.getDefault(), bean, propertyDescriptor);	111	IObservableValue observable = BeansObservables.observeValue(bean,
		112	propertyName);
112	ChangeEventTracker.observe(observable);	113	ChangeEventTracker.observe(observable);
113		114
114	assertTrue(bean.hasListeners(propertyName));	115	assertTrue(bean.hasListeners(propertyName));
115	}	116	}
116		117
117	public void testConstructor_SkipRegisterListeners() throws Exception {	118	public void testConstructor_SkipRegisterListeners() throws Exception {
118	JavaBeanObservableValue observable = new JavaBeanObservableValue(Realm.getDefault(), bean, propertyDescriptor, false);	119	IObservableValue observable = PojoObservables.observeValue(bean,
		120	propertyName);
119	ChangeEventTracker.observe(observable);	121	ChangeEventTracker.observe(observable);
120		122
121	assertFalse(bean.hasListeners(propertyName));	123	assertFalse(bean.hasListeners(propertyName));
Lines 138-150 Link Here
138	}	140	}
139		141
140	public IObservableValue createObservableValue(Realm realm) {	142	public IObservableValue createObservableValue(Realm realm) {
141	try {	143	return BeansObservables.observeValue(realm, bean, "value");
142	PropertyDescriptor propertyDescriptor = new PropertyDescriptor("value", Bean.class);
143	return new JavaBeanObservableValue(realm, bean,
144	propertyDescriptor);
145	} catch (IntrospectionException e) {
146	throw new RuntimeException(e);
147	}
148	}	144	}
149		145
150	public void change(IObservable observable) {	146	public void change(IObservable observable) {

Lines 7-16 Link Here

(-)src/org/eclipse/core/tests/databinding/beans/PojoObservablesTest.java (-18 / +16 lines)
7	*	7	*
8	* Contributors:	8	* Contributors:
9	* IBM Corporation - initial API and implementation	9	* IBM Corporation - initial API and implementation
		10	* Matthew Hall - bug 194734
10	*******************************************************************************/	11	*******************************************************************************/
11		12
12	package org.eclipse.core.tests.databinding.beans;	13	package org.eclipse.core.tests.databinding.beans;
13		14
		15	import org.eclipse.core.databinding.beans.IBeanObservable;
14	import org.eclipse.core.databinding.beans.PojoObservables;	16	import org.eclipse.core.databinding.beans.PojoObservables;
15	import org.eclipse.core.databinding.observable.Realm;	17	import org.eclipse.core.databinding.observable.Realm;
16	import org.eclipse.core.databinding.observable.list.IObservableList;	18	import org.eclipse.core.databinding.observable.list.IObservableList;
Lines 19-28 Link Here
19	import org.eclipse.core.databinding.observable.set.IObservableSet;	21	import org.eclipse.core.databinding.observable.set.IObservableSet;
20	import org.eclipse.core.databinding.observable.set.WritableSet;	22	import org.eclipse.core.databinding.observable.set.WritableSet;
21	import org.eclipse.core.databinding.observable.value.IObservableValue;	23	import org.eclipse.core.databinding.observable.value.IObservableValue;
22	import org.eclipse.core.internal.databinding.beans.JavaBeanObservableList;
23	import org.eclipse.core.internal.databinding.beans.JavaBeanObservableMap;
24	import org.eclipse.core.internal.databinding.beans.JavaBeanObservableSet;
25	import org.eclipse.core.internal.databinding.beans.JavaBeanObservableValue;
26	import org.eclipse.core.tests.internal.databinding.beans.Bean;	24	import org.eclipse.core.tests.internal.databinding.beans.Bean;
27	import org.eclipse.jface.databinding.conformance.util.ChangeEventTracker;	25	import org.eclipse.jface.databinding.conformance.util.ChangeEventTracker;
28	import org.eclipse.jface.databinding.conformance.util.CurrentRealm;	26	import org.eclipse.jface.databinding.conformance.util.CurrentRealm;
Lines 47-58 Link Here
47	propertyName = "value";	45	propertyName = "value";
48	}	46	}
49		47
50	public void testObserveValue_ReturnsJavaBeanObservableValue()	48	public void testObserveValue_ReturnsIBeanObservable()
51	throws Exception {	49	throws Exception {
52	IObservableValue value = PojoObservables.observeValue(pojo, propertyName);	50	IObservableValue value = PojoObservables.observeValue(pojo, propertyName);
53		51
54	assertNotNull(value);	52	assertNotNull(value);
55	assertTrue(value instanceof JavaBeanObservableValue);	53	assertTrue(value instanceof IBeanObservable);
56	}	54	}
57		55
58	public void testObserveValue_DoesNotAttachListeners() throws Exception {	56	public void testObserveValue_DoesNotAttachListeners() throws Exception {
Lines 62-78 Link Here
62	assertFalse(pojo.hasListeners(propertyName));	60	assertFalse(pojo.hasListeners(propertyName));
63	}	61	}
64		62
65	public void testObservableValueWithRealm_ReturnsJavaBeanObservable()	63	public void testObservableValueWithRealm_ReturnsIBeanObservable()
66	throws Exception {	64	throws Exception {
67	CurrentRealm realm = new CurrentRealm(true);	65	CurrentRealm realm = new CurrentRealm(true);
68	IObservableValue value = PojoObservables.observeValue(realm, pojo,	66	IObservableValue value = PojoObservables.observeValue(realm, pojo,
69	propertyName);	67	propertyName);
70		68
71	assertNotNull(value);	69	assertNotNull(value);
72	assertTrue(value instanceof JavaBeanObservableValue);	70	assertTrue(value instanceof IBeanObservable);
73	}	71	}
74		72
75	public void testObservableMap_ReturnsJavaBeanObservableMap()	73	public void testObservableMap_ReturnsIBeanObservable()
76	throws Exception {	74	throws Exception {
77	IObservableSet set = new WritableSet();	75	IObservableSet set = new WritableSet();
78	set.add(new Bean());	76	set.add(new Bean());
Lines 80-86 Link Here
80	IObservableMap map = PojoObservables.observeMap(set, Bean.class,	78	IObservableMap map = PojoObservables.observeMap(set, Bean.class,
81	propertyName);	79	propertyName);
82	assertNotNull(map);	80	assertNotNull(map);
83	assertTrue(map instanceof JavaBeanObservableMap);	81	assertTrue(map instanceof IBeanObservable);
84	}	82	}
85		83
86	public void testObservableMap_DoesNotAttachListeners() throws Exception {	84	public void testObservableMap_DoesNotAttachListeners() throws Exception {
Lines 101-109 Link Here
101	assertEquals(2, maps.length);	99	assertEquals(2, maps.length);
102	}	100	}
103		101
104	public void testObserveListWithElementType_ReturnsJavaBeanObservableList() throws Exception {	102	public void testObserveListWithElementType_ReturnsIBeanObservable() throws Exception {
105	IObservableList list = PojoObservables.observeList(Realm.getDefault(), pojo, "list", String.class);	103	IObservableList list = PojoObservables.observeList(Realm.getDefault(), pojo, "list", String.class);
106	assertTrue(list instanceof JavaBeanObservableList);	104	assertTrue(list instanceof IBeanObservable);
107	}	105	}
108		106
109	public void testObserveListWithElementType_DoesNotAttachListeners() throws Exception {	107	public void testObserveListWithElementType_DoesNotAttachListeners() throws Exception {
Lines 113-121 Link Here
113	assertFalse(pojo.hasListeners("list"));	111	assertFalse(pojo.hasListeners("list"));
114	}	112	}
115		113
116	public void testObserveList_ReturnsJavaBeanObservableList() throws Exception {	114	public void testObserveList_ReturnsIBeanObservable() throws Exception {
117	IObservableList observable = PojoObservables.observeList(Realm.getDefault(), pojo, "list");	115	IObservableList observable = PojoObservables.observeList(Realm.getDefault(), pojo, "list");
118	assertTrue(observable instanceof JavaBeanObservableList);	116	assertTrue(observable instanceof IBeanObservable);
119	}	117	}
120		118
121	public void testObserveList_DoesNotAttachListeners() throws Exception {	119	public void testObserveList_DoesNotAttachListeners() throws Exception {
Lines 125-133 Link Here
125	assertFalse(pojo.hasListeners("list"));	123	assertFalse(pojo.hasListeners("list"));
126	}	124	}
127		125
128	public void testObserveSetWithElementType_ReturnsJavaBeanObservableList() throws Exception {	126	public void testObserveSetWithElementType_ReturnsIBeanObservable() throws Exception {
129	IObservableSet list = PojoObservables.observeSet(Realm.getDefault(), pojo, "set", String.class);	127	IObservableSet list = PojoObservables.observeSet(Realm.getDefault(), pojo, "set", String.class);
130	assertTrue(list instanceof JavaBeanObservableSet);	128	assertTrue(list instanceof IBeanObservable);
131	}	129	}
132		130
133	public void testObserveSetWithElementType_DoesNotAttachListeners() throws Exception {	131	public void testObserveSetWithElementType_DoesNotAttachListeners() throws Exception {
Lines 137-145 Link Here
137	assertFalse(pojo.hasListeners("set"));	135	assertFalse(pojo.hasListeners("set"));
138	}	136	}
139		137
140	public void testObserveSet_ReturnsJavaBeanObservableList() throws Exception {	138	public void testObserveSet_ReturnsIBeanObservable() throws Exception {
141	IObservableSet list = PojoObservables.observeSet(Realm.getDefault(), pojo, "set");	139	IObservableSet list = PojoObservables.observeSet(Realm.getDefault(), pojo, "set");
142	assertTrue(list instanceof JavaBeanObservableSet);	140	assertTrue(list instanceof IBeanObservable);
143	}	141	}
144		142
145	public void testObserveSet_DoesNotAttachListeners() throws Exception {	143	public void testObserveSet_DoesNotAttachListeners() throws Exception {

Removed Link Here

(-)src/org/eclipse/core/internal/databinding/beans/JavaBeanObservableMap.java (-142 lines)
1	/*******************************************************************************
2	* Copyright (c) 2006, 2008 IBM Corporation and others.
3	* All rights reserved. This program and the accompanying materials
4	* are made available under the terms of the Eclipse Public License v1.0
5	* which accompanies this distribution, and is available at
6	* http://www.eclipse.org/legal/epl-v10.html
7	*
8	* Contributors:
9	* IBM Corporation - initial API and implementation
10	* Brad Reynolds - bug 171616
11	* Matthew hall - bugs 223164, 241585
12	*******************************************************************************/
13
14	package org.eclipse.core.internal.databinding.beans;
15
16	import java.beans.PropertyChangeListener;
17	import java.beans.PropertyDescriptor;
18	import java.lang.reflect.Method;
19
20	import org.eclipse.core.databinding.beans.IBeanObservable;
21	import org.eclipse.core.databinding.observable.Diffs;
22	import org.eclipse.core.databinding.observable.map.ComputedObservableMap;
23	import org.eclipse.core.databinding.observable.set.IObservableSet;
24	import org.eclipse.core.databinding.util.Policy;
25	import org.eclipse.core.runtime.IStatus;
26	import org.eclipse.core.runtime.Status;
27
28	/**
29	* @since 1.0
30	*
31	*/
32	public class JavaBeanObservableMap extends ComputedObservableMap implements
33	IBeanObservable {
34
35	private PropertyDescriptor propertyDescriptor;
36
37	private PropertyChangeListener elementListener = new PropertyChangeListener() {
38	public void propertyChange(final java.beans.PropertyChangeEvent event) {
39	if (!updating) {
40	getRealm().exec(new Runnable() {
41	public void run() {
42	fireMapChange(Diffs.createMapDiffSingleChange(
43	event.getSource(), event.getOldValue(), event
44	.getNewValue()));
45	}
46	});
47	}
48	}
49	};
50
51	private ListenerSupport listenerSupport;
52
53	private boolean updating = false;
54
55	private boolean attachListeners;
56
57	/**
58	* @param domain
59	* @param propertyDescriptor
60	*/
61	public JavaBeanObservableMap(IObservableSet domain,
62	PropertyDescriptor propertyDescriptor) {
63	this(domain, propertyDescriptor, true);
64	}
65
66	/**
67	* @param domain
68	* @param propertyDescriptor
69	* @param attachListeners
70	*/
71	public JavaBeanObservableMap(IObservableSet domain,
72	PropertyDescriptor propertyDescriptor, boolean attachListeners) {
73	super(domain);
74
75	this.propertyDescriptor = propertyDescriptor;
76	this.attachListeners = attachListeners;
77	if (attachListeners) {
78	this.listenerSupport = new ListenerSupport(elementListener,
79	propertyDescriptor.getName());
80	}
81	init();
82	}
83
84	protected void hookListener(Object domainElement) {
85	if (attachListeners && domainElement != null) {
86	listenerSupport.hookListener(domainElement);
87	}
88	}
89
90	protected void unhookListener(Object domainElement) {
91	if (attachListeners && domainElement != null) {
92	listenerSupport.unhookListener(domainElement);
93	}
94	}
95
96	protected Object doGet(Object key) {
97	if (key == null) {
98	return null;
99	}
100	try {
101	Method readMethod = propertyDescriptor.getReadMethod();
102	if (!readMethod.isAccessible()) {
103	readMethod.setAccessible(true);
104	}
105	return readMethod.invoke(key, new Object[0]);
106	} catch (Exception e) {
107	Policy.getLog().log(
108	new Status(IStatus.ERROR, Policy.JFACE_DATABINDING,
109	IStatus.ERROR, "cannot get value", e)); //$NON-NLS-1$
110	throw new RuntimeException(e);
111	}
112	}
113
114	protected Object doPut(Object key, Object value) {
115	try {
116	Object oldValue = get(key);
117	propertyDescriptor.getWriteMethod().invoke(key,
118	new Object[] { value });
119	keySet().add(key);
120	return oldValue;
121	} catch (Exception e) {
122	Policy.getLog().log(
123	new Status(IStatus.ERROR, Policy.JFACE_DATABINDING,
124	IStatus.ERROR, "cannot set value", e)); //$NON-NLS-1$
125	throw new RuntimeException(e);
126	}
127	}
128
129	/* (non-Javadoc)
130	* @see org.eclipse.core.databinding.beans.IBeanObservable#getObserved()
131	*/
132	public Object getObserved() {
133	return keySet();
134	}
135
136	/* (non-Javadoc)
137	* @see org.eclipse.core.databinding.beans.IBeanObservable#getPropertyDescriptor()
138	*/
139	public PropertyDescriptor getPropertyDescriptor() {
140	return propertyDescriptor;
141	}
142	}

Removed Link Here

(-)src/org/eclipse/core/internal/databinding/beans/JavaBeanObservableList.java (-410 lines)
1	/*******************************************************************************
2	* Copyright (c) 2006-2008 IBM Corporation and others.
3	* All rights reserved. This program and the accompanying materials
4	* are made available under the terms of the Eclipse Public License v1.0
5	* which accompanies this distribution, and is available at
6	* http://www.eclipse.org/legal/epl-v10.html
7	*
8	* Contributors:
9	* IBM Corporation - initial API and implementation
10	* Brad Reynolds - bug 171616
11	* Matthew Hall - bugs 208858, 221351, 213145, 223164
12	* Mike Evans - bug 217558
13	*******************************************************************************/
14
15	package org.eclipse.core.internal.databinding.beans;
16
17	import java.beans.PropertyChangeListener;
18	import java.beans.PropertyDescriptor;
19	import java.lang.reflect.Array;
20	import java.lang.reflect.InvocationTargetException;
21	import java.lang.reflect.Method;
22	import java.util.ArrayList;
23	import java.util.Arrays;
24	import java.util.Collection;
25	import java.util.Iterator;
26	import java.util.List;
27
28	import org.eclipse.core.databinding.BindingException;
29	import org.eclipse.core.databinding.beans.IBeanObservable;
30	import org.eclipse.core.databinding.observable.Diffs;
31	import org.eclipse.core.databinding.observable.Realm;
32	import org.eclipse.core.databinding.observable.list.ListDiffEntry;
33	import org.eclipse.core.databinding.observable.list.ObservableList;
34
35	/**
36	* @since 1.0
37	*
38	*/
39	public class JavaBeanObservableList extends ObservableList implements
40	IBeanObservable {
41
42	private final Object object;
43
44	private PropertyChangeListener collectionListener = new PropertyChangeListener() {
45	public void propertyChange(java.beans.PropertyChangeEvent event) {
46	if (!updating) {
47	getRealm().exec(new Runnable() {
48	public void run() {
49	updateWrappedList( new ArrayList( Arrays.asList(getValues() ) ) );
50	}
51	});
52	}
53	}
54	};
55
56	private boolean updating = false;
57
58	private PropertyDescriptor descriptor;
59
60	private ListenerSupport collectionListenSupport;
61
62	private boolean attachListeners;
63
64	/**
65	* @param realm
66	* @param object
67	* @param descriptor
68	* @param elementType
69	*/
70	public JavaBeanObservableList(Realm realm, Object object,
71	PropertyDescriptor descriptor, Class elementType) {
72	this(realm, object, descriptor, elementType, true);
73	}
74
75	/**
76	* @param realm
77	* @param object
78	* @param descriptor
79	* @param elementType
80	* @param attachListeners
81	*/
82	public JavaBeanObservableList(Realm realm, Object object,
83	PropertyDescriptor descriptor, Class elementType,
84	boolean attachListeners) {
85
86	super(realm, new ArrayList(), elementType);
87	this.object = object;
88	this.descriptor = descriptor;
89	this.attachListeners = attachListeners;
90
91	if (attachListeners) {
92	this.collectionListenSupport = new ListenerSupport(
93	collectionListener, descriptor.getName());
94	}
95
96	// initialize list without firing events
97	wrappedList.addAll(Arrays.asList(getValues()));
98	}
99
100	protected void firstListenerAdded() {
101	if (attachListeners) {
102	collectionListenSupport.hookListener(this.object);
103	}
104	}
105
106	protected void lastListenerRemoved() {
107	if (collectionListenSupport != null) {
108	collectionListenSupport.dispose();
109	}
110	}
111
112	public synchronized void dispose() {
113	super.dispose();
114	lastListenerRemoved();
115	}
116
117	private Object primGetValues() {
118	Exception ex = null;
119	try {
120	Method readMethod = descriptor.getReadMethod();
121	if (!readMethod.isAccessible()) {
122	readMethod.setAccessible(true);
123	}
124	return readMethod.invoke(object, new Object[0]);
125	} catch (IllegalArgumentException e) {
126	ex = e;
127	} catch (IllegalAccessException e) {
128	ex = e;
129	} catch (InvocationTargetException e) {
130	ex = e;
131	}
132	throw new BindingException("Could not read collection values", ex); //$NON-NLS-1$
133	}
134
135	private Object[] getValues() {
136	Object[] values = null;
137
138	Object result = primGetValues();
139	if (descriptor.getPropertyType().isArray())
140	values = (Object[]) result;
141	else {
142	// TODO add jUnit for POJO (var. SettableValue) collections
143	Collection list = (Collection) result;
144	if (list != null) {
145	values = list.toArray();
146	}
147	}
148	if (values == null)
149	values = new Object[0];
150	return values;
151	}
152
153	public Object getObserved() {
154	return object;
155	}
156
157	public PropertyDescriptor getPropertyDescriptor() {
158	return descriptor;
159	}
160
161	private void setValues() {
162	if (descriptor.getPropertyType().isArray()) {
163	Class componentType = descriptor.getPropertyType()
164	.getComponentType();
165	Object[] newArray = (Object[]) Array.newInstance(componentType,
166	wrappedList.size());
167	wrappedList.toArray(newArray);
168	primSetValues(newArray);
169	} else {
170	// assume that it is a java.util.List
171	primSetValues(new ArrayList(wrappedList));
172	}
173	}
174
175	private void primSetValues(Object newValue) {
176	Exception ex = null;
177	try {
178	Method writeMethod = descriptor.getWriteMethod();
179	if (!writeMethod.isAccessible()) {
180	writeMethod.setAccessible(true);
181	}
182	writeMethod.invoke(object, new Object[] { newValue });
183	return;
184	} catch (IllegalArgumentException e) {
185	ex = e;
186	} catch (IllegalAccessException e) {
187	ex = e;
188	} catch (InvocationTargetException e) {
189	ex = e;
190	}
191	throw new BindingException("Could not write collection values", ex); //$NON-NLS-1$
192	}
193
194	public Object set(int index, Object element) {
195	getterCalled();
196	updating = true;
197	try {
198	Object oldElement = wrappedList.set(index, element);
199	setValues();
200	fireListChange(Diffs.createListDiff(Diffs.createListDiffEntry(
201	index, false, oldElement), Diffs.createListDiffEntry(index,
202	true, element)));
203	return oldElement;
204	} finally {
205	updating = false;
206	}
207	}
208
209	public Object move(int oldIndex, int newIndex) {
210	getterCalled();
211	updating = true;
212	try {
213	int size = wrappedList.size();
214	if (oldIndex < 0 \|\| oldIndex >= size)
215	throw new IndexOutOfBoundsException(
216	"oldIndex: " + oldIndex + ", size:" + size); //$NON-NLS-1$ //$NON-NLS-2$
217	if (newIndex < 0 \|\| newIndex >= size)
218	throw new IndexOutOfBoundsException(
219	"newIndex: " + newIndex + ", size:" + size); //$NON-NLS-1$ //$NON-NLS-2$
220	if (oldIndex == newIndex)
221	return wrappedList.get(oldIndex);
222	Object element = wrappedList.remove(oldIndex);
223	wrappedList.add(newIndex, element);
224	setValues();
225	fireListChange(Diffs.createListDiff(Diffs.createListDiffEntry(
226	oldIndex, false, element), Diffs.createListDiffEntry(
227	newIndex, true, element)));
228	return element;
229	} finally {
230	updating = false;
231	}
232	}
233
234	public Object remove(int index) {
235	getterCalled();
236	updating = true;
237	try {
238	Object oldElement = wrappedList.remove(index);
239	setValues();
240	fireListChange(Diffs.createListDiff(Diffs.createListDiffEntry(
241	index, false, oldElement)));
242	return oldElement;
243	} finally {
244	updating = false;
245	}
246	}
247
248	public boolean add(Object element) {
249	updating = true;
250	try {
251	int index = wrappedList.size();
252	boolean result = wrappedList.add(element);
253	setValues();
254	fireListChange(Diffs.createListDiff(Diffs.createListDiffEntry(
255	index, true, element)));
256	return result;
257	} finally {
258	updating = false;
259	}
260	}
261
262	public void add(int index, Object element) {
263	updating = true;
264	try {
265	wrappedList.add(index, element);
266	setValues();
267	fireListChange(Diffs.createListDiff(Diffs.createListDiffEntry(
268	index, true, element)));
269	} finally {
270	updating = false;
271	}
272	}
273
274	public boolean addAll(Collection c) {
275	if (c.isEmpty()) {
276	return false;
277	}
278	updating = true;
279	try {
280	int index = wrappedList.size();
281	boolean result = wrappedList.addAll(c);
282	setValues();
283	ListDiffEntry[] entries = new ListDiffEntry[c.size()];
284	int i = 0;
285	for (Iterator it = c.iterator(); it.hasNext();) {
286	Object o = it.next();
287	entries[i++] = Diffs.createListDiffEntry(index++, true, o);
288	}
289	fireListChange(Diffs.createListDiff(entries));
290	return result;
291	} finally {
292	updating = false;
293	}
294	}
295
296	public boolean addAll(int index, Collection c) {
297	if (c.isEmpty()) {
298	return false;
299	}
300	updating = true;
301	try {
302	boolean result = wrappedList.addAll(index, c);
303	setValues();
304	ListDiffEntry[] entries = new ListDiffEntry[c.size()];
305	int i = 0;
306	for (Iterator it = c.iterator(); it.hasNext();) {
307	Object o = it.next();
308	entries[i++] = Diffs.createListDiffEntry(index++, true, o);
309	}
310	fireListChange(Diffs.createListDiff(entries));
311	return result;
312	} finally {
313	updating = false;
314	}
315	}
316
317	public boolean remove(Object o) {
318	getterCalled();
319	int index = wrappedList.indexOf(o);
320	if (index == -1) {
321	return false;
322	}
323	updating = true;
324	try {
325	Object oldElement = wrappedList.remove(index);
326	setValues();
327	fireListChange(Diffs.createListDiff(Diffs.createListDiffEntry(
328	index, false, oldElement)));
329	return true;
330	} finally {
331	updating = false;
332	}
333	}
334
335	public boolean removeAll(Collection c) {
336	getterCalled();
337	boolean changed = false;
338	updating = true;
339	try {
340	List diffEntries = new ArrayList();
341	for (Iterator it = c.iterator(); it.hasNext();) {
342	Object o = it.next();
343	int index = wrappedList.indexOf(o);
344	if (index != -1) {
345	changed = true;
346	Object oldElement = wrappedList.remove(index);
347	diffEntries.add(Diffs.createListDiffEntry(index, false,
348	oldElement));
349	}
350	}
351	if (changed) {
352	setValues();
353	fireListChange(Diffs
354	.createListDiff((ListDiffEntry[]) diffEntries
355	.toArray(new ListDiffEntry[diffEntries.size()])));
356	}
357	return changed;
358	} finally {
359	updating = false;
360	}
361	}
362
363	public boolean retainAll(Collection c) {
364	getterCalled();
365	boolean changed = false;
366	updating = true;
367	try {
368	List diffEntries = new ArrayList();
369	int index = 0;
370	for (Iterator it = wrappedList.iterator(); it.hasNext();) {
371	Object o = it.next();
372	boolean retain = c.contains(o);
373	if (retain) {
374	index++;
375	} else {
376	changed = true;
377	it.remove();
378	diffEntries.add(Diffs.createListDiffEntry(index, false, o));
379	}
380	}
381	if (changed) {
382	setValues();
383	fireListChange(Diffs
384	.createListDiff((ListDiffEntry[]) diffEntries
385	.toArray(new ListDiffEntry[diffEntries.size()])));
386	}
387	return changed;
388	} finally {
389	updating = false;
390	}
391	}
392
393	public void clear() {
394	updating = true;
395	try {
396	List diffEntries = new ArrayList();
397	for (Iterator it = wrappedList.iterator(); it.hasNext();) {
398	Object o = it.next();
399	diffEntries.add(Diffs.createListDiffEntry(0, false, o));
400	}
401	wrappedList.clear();
402	setValues();
403	fireListChange(Diffs.createListDiff((ListDiffEntry[]) diffEntries
404	.toArray(new ListDiffEntry[diffEntries.size()])));
405	} finally {
406	updating = false;
407	}
408	}
409
410	}

Removed Link Here

(-)src/org/eclipse/core/internal/databinding/beans/JavaBeanPropertyObservableMap.java (-241 lines)
1	/*******************************************************************************
2	* Copyright (c) 2008 Matthew Hall and others.
3	* All rights reserved. This program and the accompanying materials
4	* are made available under the terms of the Eclipse Public License v1.0
5	* which accompanies this distribution, and is available at
6	* http://www.eclipse.org/legal/epl-v10.html
7	*
8	* Contributors:
9	* Matthew Hall - initial API and implementation (bug 221704)
10	* Matthew Hall - bug 223164
11	*******************************************************************************/
12
13	package org.eclipse.core.internal.databinding.beans;
14
15	import java.beans.PropertyChangeEvent;
16	import java.beans.PropertyChangeListener;
17	import java.beans.PropertyDescriptor;
18	import java.lang.reflect.InvocationTargetException;
19	import java.lang.reflect.Method;
20	import java.util.Collections;
21	import java.util.HashMap;
22	import java.util.HashSet;
23	import java.util.Iterator;
24	import java.util.Map;
25	import java.util.Set;
26
27	import org.eclipse.core.databinding.BindingException;
28	import org.eclipse.core.databinding.beans.IBeanObservable;
29	import org.eclipse.core.databinding.observable.Diffs;
30	import org.eclipse.core.databinding.observable.Realm;
31	import org.eclipse.core.databinding.observable.map.ObservableMap;
32	import org.eclipse.core.internal.databinding.Util;
33	import org.eclipse.core.runtime.Assert;
34
35	/**
36	* @since 1.0
37	*
38	*/
39	public class JavaBeanPropertyObservableMap extends ObservableMap implements
40	IBeanObservable {
41
42	private final Object object;
43
44	private PropertyChangeListener mapListener = new PropertyChangeListener() {
45	public void propertyChange(final PropertyChangeEvent event) {
46	if (!updating) {
47	getRealm().exec(new Runnable() {
48	public void run() {
49	Map oldValue = wrappedMap;
50	Map newValue = (Map) event.getNewValue();
51	wrappedMap = new HashMap(newValue);
52
53	fireMapChange(Diffs.computeMapDiff(oldValue, newValue));
54	}
55	});
56	}
57	}
58	};
59
60	private boolean updating = false;
61
62	private PropertyDescriptor descriptor;
63
64	private ListenerSupport collectionListenSupport;
65
66	private boolean attachListeners;
67
68	/**
69	* @param realm
70	* @param object
71	* @param descriptor
72	*/
73	public JavaBeanPropertyObservableMap(Realm realm, Object object,
74	PropertyDescriptor descriptor) {
75	this(realm, object, descriptor, true);
76	}
77
78	/**
79	* @param realm
80	* @param object
81	* @param descriptor
82	* @param attachListeners
83	*/
84	public JavaBeanPropertyObservableMap(Realm realm, Object object,
85	PropertyDescriptor descriptor, boolean attachListeners) {
86	super(realm, new HashMap());
87	this.object = object;
88	this.descriptor = descriptor;
89	this.attachListeners = attachListeners;
90	if (attachListeners) {
91	this.collectionListenSupport = new ListenerSupport(mapListener,
92	descriptor.getName());
93	}
94
95	wrappedMap.putAll(getMap());
96	}
97
98	protected void firstListenerAdded() {
99	if (attachListeners) {
100	collectionListenSupport.hookListener(this.object);
101	}
102	}
103
104	protected void lastListenerRemoved() {
105	if (collectionListenSupport != null) {
106	collectionListenSupport.dispose();
107	}
108	}
109
110	private Object primGetMap() {
111	try {
112	Method readMethod = descriptor.getReadMethod();
113	if (!readMethod.isAccessible()) {
114	readMethod.setAccessible(true);
115	}
116	return readMethod.invoke(object, new Object[0]);
117	} catch (IllegalArgumentException e) {
118	} catch (IllegalAccessException e) {
119	} catch (InvocationTargetException e) {
120	}
121	Assert.isTrue(false, "Could not read collection values"); //$NON-NLS-1$
122	return null;
123	}
124
125	private void primSetMap(Object newValue) {
126	Exception ex = null;
127	try {
128	Method writeMethod = descriptor.getWriteMethod();
129	if (!writeMethod.isAccessible()) {
130	writeMethod.setAccessible(true);
131	}
132	writeMethod.invoke(object, new Object[] { newValue });
133	return;
134	} catch (IllegalArgumentException e) {
135	ex = e;
136	} catch (IllegalAccessException e) {
137	ex = e;
138	} catch (InvocationTargetException e) {
139	ex = e;
140	}
141	throw new BindingException("Could not write collection values", ex); //$NON-NLS-1$
142	}
143
144	private Map getMap() {
145	Map result = (Map) primGetMap();
146
147	if (result == null)
148	result = new HashMap();
149	return result;
150	}
151
152	private void setMap() {
153	primSetMap(new HashMap(wrappedMap));
154	}
155
156	public Object put(Object key, Object value) {
157	checkRealm();
158	updating = true;
159	try {
160	Object result = wrappedMap.put(key, value);
161	if (!Util.equals(result, value)) {
162	setMap();
163	if (result == null) {
164	fireMapChange(Diffs.createMapDiffSingleAdd(key, value));
165	} else {
166	fireMapChange(Diffs.createMapDiffSingleChange(key, result,
167	value));
168	}
169	}
170	return result;
171	} finally {
172	updating = false;
173	}
174	}
175
176	public void putAll(Map map) {
177	checkRealm();
178	updating = true;
179	try {
180	Set addedKeys = new HashSet(map.size());
181	Map changes = new HashMap(map.size());
182	for (Iterator it = map.entrySet().iterator(); it.hasNext();) {
183	Map.Entry entry = (Entry) it.next();
184	Object key = entry.getKey();
185	Object newValue = entry.getValue();
186	Object oldValue = wrappedMap.put(key, newValue);
187	if (oldValue == null) {
188	addedKeys.add(key);
189	} else if (!Util.equals(oldValue, newValue)) {
190	changes.put(key, oldValue);
191	}
192	}
193	if (!addedKeys.isEmpty() \|\| !changes.isEmpty()) {
194	setMap();
195	fireMapChange(Diffs.createMapDiff(addedKeys,
196	Collections.EMPTY_SET, changes.keySet(), changes,
197	wrappedMap));
198	}
199	} finally {
200	updating = false;
201	}
202	}
203
204	public Object remove(Object key) {
205	checkRealm();
206	updating = true;
207	try {
208	Object result = wrappedMap.remove(key);
209	if (result!=null) {
210	setMap();
211	fireMapChange(Diffs.createMapDiffSingleRemove(key, result));
212	}
213	return result;
214	} finally {
215	updating = false;
216	}
217	}
218
219	public void clear() {
220	checkRealm();
221	if (wrappedMap.isEmpty())
222	return;
223	updating = true;
224	try {
225	Map oldMap = wrappedMap;
226	wrappedMap = new HashMap();
227	setMap();
228	fireMapChange(Diffs.computeMapDiff(oldMap, Collections.EMPTY_MAP));
229	} finally {
230	updating = false;
231	}
232	}
233
234	public Object getObserved() {
235	return object;
236	}
237
238	public PropertyDescriptor getPropertyDescriptor() {
239	return descriptor;
240	}
241	}

Removed Link Here

(-)src/org/eclipse/core/internal/databinding/beans/JavaBeanObservableValue.java (-190 lines)
1	/*******************************************************************************
2	* Copyright (c) 2005, 2008 IBM Corporation and others.
3	* All rights reserved. This program and the accompanying materials
4	* are made available under the terms of the Eclipse Public License v1.0
5	* which accompanies this distribution, and is available at
6	* http://www.eclipse.org/legal/epl-v10.html
7	*
8	* Contributors:
9	* IBM Corporation - initial API and implementation
10	* Brad Reynolds - bug 164653
11	* Brad Reynolds - bug 164134, 171616
12	*******************************************************************************/
13	package org.eclipse.core.internal.databinding.beans;
14
15	import java.beans.PropertyChangeListener;
16	import java.beans.PropertyDescriptor;
17	import java.lang.reflect.InvocationTargetException;
18	import java.lang.reflect.Method;
19
20	import org.eclipse.core.databinding.BindingException;
21	import org.eclipse.core.databinding.beans.BeansObservables;
22	import org.eclipse.core.databinding.beans.IBeanObservable;
23	import org.eclipse.core.databinding.observable.Diffs;
24	import org.eclipse.core.databinding.observable.Realm;
25	import org.eclipse.core.databinding.observable.value.AbstractObservableValue;
26	import org.eclipse.core.databinding.observable.value.ValueDiff;
27	import org.eclipse.core.databinding.util.Policy;
28	import org.eclipse.core.internal.databinding.Util;
29	import org.eclipse.core.runtime.IStatus;
30	import org.eclipse.core.runtime.Status;
31
32	/**
33	* @since 1.0
34	*
35	*/
36	public class JavaBeanObservableValue extends AbstractObservableValue implements IBeanObservable {
37	private final Object object;
38	private boolean updating = false;
39
40	private final PropertyDescriptor propertyDescriptor;
41	private ListenerSupport listenerSupport;
42
43	private boolean attachListeners;
44
45	/**
46	* @param realm
47	* @param object
48	* @param descriptor
49	*/
50	public JavaBeanObservableValue(Realm realm, Object object,
51	PropertyDescriptor descriptor) {
52	this(realm, object, descriptor, true);
53	}
54
55	/**
56	* @param realm
57	* @param object
58	* @param descriptor
59	* @param attachListeners
60	*/
61	public JavaBeanObservableValue(Realm realm, Object object,
62	PropertyDescriptor descriptor, boolean attachListeners) {
63	super(realm);
64	this.object = object;
65	this.propertyDescriptor = descriptor;
66	this.attachListeners = attachListeners;
67	}
68
69	protected void firstListenerAdded() {
70	if (!attachListeners) {
71	return;
72	}
73
74	PropertyChangeListener listener = new PropertyChangeListener() {
75	public void propertyChange(java.beans.PropertyChangeEvent event) {
76	if (!updating) {
77	final ValueDiff diff = Diffs.createValueDiff(event.getOldValue(),
78	event.getNewValue());
79	getRealm().exec(new Runnable(){
80	public void run() {
81	fireValueChange(diff);
82	}});
83	}
84	}
85	};
86
87	if (listenerSupport == null) {
88	listenerSupport = new ListenerSupport(listener, propertyDescriptor.getName());
89	}
90
91	listenerSupport.hookListener(object);
92	}
93
94	public void doSetValue(Object value) {
95	updating = true;
96	try {
97	Object oldValue = doGetValue();
98
99	if (Util.equals(oldValue, value)) {
100	return;
101	}
102
103	Method writeMethod = propertyDescriptor.getWriteMethod();
104	if (!writeMethod.isAccessible()) {
105	writeMethod.setAccessible(true);
106	}
107	writeMethod.invoke(object, new Object[] { value });
108	fireValueChange(Diffs.createValueDiff(oldValue, doGetValue()));
109	} catch (InvocationTargetException e) {
110	/*
111	* InvocationTargetException wraps any exception thrown by the
112	* invoked method.
113	*/
114	throw new RuntimeException(e.getCause());
115	} catch (Exception e) {
116	if (BeansObservables.DEBUG) {
117	Policy
118	.getLog()
119	.log(
120	new Status(
121	IStatus.WARNING,
122	Policy.JFACE_DATABINDING,
123	IStatus.OK,
124	"Could not change value of " + object + "." + propertyDescriptor.getName(), e)); //$NON-NLS-1$ //$NON-NLS-2$
125	}
126	} finally {
127	updating = false;
128	}
129	}
130
131	public Object doGetValue() {
132	try {
133	Method readMethod = propertyDescriptor.getReadMethod();
134	if (readMethod == null) {
135	throw new BindingException(propertyDescriptor.getName()
136	+ " property does not have a read method."); //$NON-NLS-1$
137	}
138	if (!readMethod.isAccessible()) {
139	readMethod.setAccessible(true);
140	}
141	return readMethod.invoke(object, null);
142	} catch (InvocationTargetException e) {
143	/*
144	* InvocationTargetException wraps any exception thrown by the
145	* invoked method.
146	*/
147	throw new RuntimeException(e.getCause());
148	} catch (Exception e) {
149	if (BeansObservables.DEBUG) {
150	Policy
151	.getLog()
152	.log(
153	new Status(
154	IStatus.WARNING,
155	Policy.JFACE_DATABINDING,
156	IStatus.OK,
157	"Could not read value of " + object + "." + propertyDescriptor.getName(), e)); //$NON-NLS-1$ //$NON-NLS-2$
158	}
159	return null;
160	}
161	}
162
163	protected void lastListenerRemoved() {
164	unhookListener();
165	}
166
167	private void unhookListener() {
168	if (listenerSupport != null) {
169	listenerSupport.dispose();
170	listenerSupport = null;
171	}
172	}
173
174	public Object getValueType() {
175	return propertyDescriptor.getPropertyType();
176	}
177
178	public Object getObserved() {
179	return object;
180	}
181
182	public PropertyDescriptor getPropertyDescriptor() {
183	return propertyDescriptor;
184	}
185
186	public synchronized void dispose() {
187	unhookListener();
188	super.dispose();
189	}
190	}

Lines 8-24 Link Here

(-)src/org/eclipse/core/databinding/beans/BeansObservables.java (-98 / +44 lines)
8	* Contributors:	8	* Contributors:
9	* IBM Corporation - initial API and implementation	9	* IBM Corporation - initial API and implementation
10	* Brad Reynolds - bugs 164268, 171616, 147515	10	* Brad Reynolds - bugs 164268, 171616, 147515
11	* Matthew Hall - bug 221704, 234686, 246625	11	* Matthew Hall - bug 221704, 234686, 246625, 194734
12	* Thomas Kratz - bug 213787	12	* Thomas Kratz - bug 213787
13	*******************************************************************************/	13	*******************************************************************************/
14	package org.eclipse.core.databinding.beans;	14	package org.eclipse.core.databinding.beans;
15		15
16	import java.beans.BeanInfo;
17	import java.beans.IntrospectionException;
18	import java.beans.Introspector;
19	import java.beans.PropertyDescriptor;	16	import java.beans.PropertyDescriptor;
20		17
21	import org.eclipse.core.databinding.BindingException;
22	import org.eclipse.core.databinding.observable.IObservable;	18	import org.eclipse.core.databinding.observable.IObservable;
23	import org.eclipse.core.databinding.observable.Realm;	19	import org.eclipse.core.databinding.observable.Realm;
24	import org.eclipse.core.databinding.observable.list.IObservableList;	20	import org.eclipse.core.databinding.observable.list.IObservableList;
Lines 27-41 Link Here
27	import org.eclipse.core.databinding.observable.masterdetail.MasterDetailObservables;	23	import org.eclipse.core.databinding.observable.masterdetail.MasterDetailObservables;
28	import org.eclipse.core.databinding.observable.set.IObservableSet;	24	import org.eclipse.core.databinding.observable.set.IObservableSet;
29	import org.eclipse.core.databinding.observable.value.IObservableValue;	25	import org.eclipse.core.databinding.observable.value.IObservableValue;
		26	import org.eclipse.core.databinding.property.IListProperty;
		27	import org.eclipse.core.databinding.property.IMapProperty;
		28	import org.eclipse.core.databinding.property.ISetProperty;
		29	import org.eclipse.core.databinding.property.IValueProperty;
		30	import org.eclipse.core.databinding.property.PropertyObservables;
30	import org.eclipse.core.internal.databinding.beans.BeanObservableListDecorator;	31	import org.eclipse.core.internal.databinding.beans.BeanObservableListDecorator;
31	import org.eclipse.core.internal.databinding.beans.BeanObservableMapDecorator;	32	import org.eclipse.core.internal.databinding.beans.BeanObservableMapDecorator;
32	import org.eclipse.core.internal.databinding.beans.BeanObservableSetDecorator;	33	import org.eclipse.core.internal.databinding.beans.BeanObservableSetDecorator;
33	import org.eclipse.core.internal.databinding.beans.BeanObservableValueDecorator;	34	import org.eclipse.core.internal.databinding.beans.BeanObservableValueDecorator;
34	import org.eclipse.core.internal.databinding.beans.JavaBeanObservableList;	35	import org.eclipse.core.internal.databinding.beans.BeanPropertyHelper;
35	import org.eclipse.core.internal.databinding.beans.JavaBeanObservableMap;
36	import org.eclipse.core.internal.databinding.beans.JavaBeanObservableSet;
37	import org.eclipse.core.internal.databinding.beans.JavaBeanObservableValue;
38	import org.eclipse.core.internal.databinding.beans.JavaBeanPropertyObservableMap;
39	import org.eclipse.core.runtime.Assert;	36	import org.eclipse.core.runtime.Assert;
40		37
41	/**	38	/**
Lines 83-91 Link Here
83	*/	80	*/
84	public static IObservableValue observeValue(Realm realm, Object bean,	81	public static IObservableValue observeValue(Realm realm, Object bean,
85	String propertyName) {	82	String propertyName) {
86	PropertyDescriptor descriptor = getPropertyDescriptor(bean.getClass(),	83	IValueProperty property = BeanProperties.valueProperty(bean.getClass(),
87	propertyName);	84	propertyName);
88	return new JavaBeanObservableValue(realm, bean, descriptor);	85	PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
		86	.getPropertyDescriptor();
		87	return new BeanObservableValueDecorator(PropertyObservables
		88	.observeValue(realm, bean, property), propertyDescriptor);
89	}	89	}
90		90
91	/**	91	/**
Lines 103-111 Link Here
103	*/	103	*/
104	public static IObservableMap observeMap(IObservableSet domain,	104	public static IObservableMap observeMap(IObservableSet domain,
105	Class beanClass, String propertyName) {	105	Class beanClass, String propertyName) {
106	PropertyDescriptor descriptor = getPropertyDescriptor(beanClass,	106	IValueProperty property = BeanProperties.valueProperty(beanClass,
107	propertyName);	107	propertyName);
108	return new JavaBeanObservableMap(domain, descriptor);	108	PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
		109	.getPropertyDescriptor();
		110	return new BeanObservableMapDecorator(PropertyObservables.observeDetailValues(
		111	domain, property), propertyDescriptor);
109	}	112	}
110		113
111	/**	114	/**
Lines 124-132 Link Here
124	*/	127	*/
125	public static IObservableMap observeMap(Realm realm, Object bean,	128	public static IObservableMap observeMap(Realm realm, Object bean,
126	String propertyName) {	129	String propertyName) {
127	PropertyDescriptor descriptor = getPropertyDescriptor(bean.getClass(),	130	IMapProperty property = BeanProperties.mapProperty(bean.getClass(),
128	propertyName);	131	propertyName);
129	return new JavaBeanPropertyObservableMap(realm, bean, descriptor);	132	PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
		133	.getPropertyDescriptor();
		134	return new BeanObservableMapDecorator(PropertyObservables.observeMap(
		135	bean, property), propertyDescriptor);
130	}	136	}
131		137
132	/**	138	/**
Lines 145-171 Link Here
145	return observeMap(Realm.getDefault(), bean, propertyName);	151	return observeMap(Realm.getDefault(), bean, propertyName);
146	}	152	}
147		153
148	/package/ static PropertyDescriptor getPropertyDescriptor(Class beanClass,
149	String propertyName) {
150	BeanInfo beanInfo;
151	try {
152	beanInfo = Introspector.getBeanInfo(beanClass);
153	} catch (IntrospectionException e) {
154	// cannot introspect, give up
155	return null;
156	}
157	PropertyDescriptor[] propertyDescriptors = beanInfo
158	.getPropertyDescriptors();
159	for (int i = 0; i < propertyDescriptors.length; i++) {
160	PropertyDescriptor descriptor = propertyDescriptors[i];
161	if (descriptor.getName().equals(propertyName)) {
162	return descriptor;
163	}
164	}
165	throw new BindingException(
166	"Could not find property with name " + propertyName + " in class " + beanClass); //$NON-NLS-1$ //$NON-NLS-2$
167	}
168
169	/**	154	/**
170	* Returns an array of observable maps in the default realm tracking the	155	* Returns an array of observable maps in the default realm tracking the
171	* current values of the named propertys for the beans in the given set.	156	* current values of the named propertys for the beans in the given set.
Lines 251-262 Link Here
251	*/	236	*/
252	public static IObservableList observeList(Realm realm, Object bean,	237	public static IObservableList observeList(Realm realm, Object bean,
253	String propertyName, Class elementType) {	238	String propertyName, Class elementType) {
254	PropertyDescriptor propertyDescriptor = getPropertyDescriptor(bean	239	IListProperty property = BeanProperties.listProperty(bean.getClass(),
255	.getClass(), propertyName);	240	propertyName, elementType);
256	elementType = getCollectionElementType(elementType, propertyDescriptor);	241	PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
257		242	.getPropertyDescriptor();
258	return new JavaBeanObservableList(realm, bean, propertyDescriptor,	243	return new BeanObservableListDecorator(PropertyObservables.observeList(
259	elementType);	244	realm, bean, property), propertyDescriptor);
260	}	245	}
261		246
262	/**	247	/**
Lines 439-448 Link Here
439		424
440	IObservableValue value = MasterDetailObservables.detailValue(master,	425	IObservableValue value = MasterDetailObservables.detailValue(master,
441	valueFactory(realm, propertyName), propertyType);	426	valueFactory(realm, propertyName), propertyType);
442	BeanObservableValueDecorator decorator = new BeanObservableValueDecorator(	427	return new BeanObservableValueDecorator(value, BeanPropertyHelper
443	value, getValueTypePropertyDescriptor(master, propertyName));	428	.getValueTypePropertyDescriptor(master, propertyName));
444
445	return decorator;
446	}	429	}
447		430
448	/**	431	/**
Lines 495-504 Link Here
495	Assert.isNotNull(masterType, "masterType cannot be null"); //$NON-NLS-1$	478	Assert.isNotNull(masterType, "masterType cannot be null"); //$NON-NLS-1$
496	IObservableValue value = MasterDetailObservables.detailValue(master,	479	IObservableValue value = MasterDetailObservables.detailValue(master,
497	valueFactory(realm, propertyName), propertyType);	480	valueFactory(realm, propertyName), propertyType);
498	BeanObservableValueDecorator decorator = new BeanObservableValueDecorator(	481	return new BeanObservableValueDecorator(value, BeanPropertyHelper
499	value, getPropertyDescriptor(masterType, propertyName));	482	.getPropertyDescriptor(masterType, propertyName));
500
501	return decorator;
502	}	483	}
503		484
504	/**	485	/**
Lines 549-559 Link Here
549	IObservableList observableList = MasterDetailObservables.detailList(	530	IObservableList observableList = MasterDetailObservables.detailList(
550	master, listFactory(realm, propertyName, propertyType),	531	master, listFactory(realm, propertyName, propertyType),
551	propertyType);	532	propertyType);
552	BeanObservableListDecorator decorator = new BeanObservableListDecorator(	533	return new BeanObservableListDecorator(observableList,
553	observableList, getValueTypePropertyDescriptor(master,	534	BeanPropertyHelper.getValueTypePropertyDescriptor(master,
554	propertyName));	535	propertyName));
555
556	return decorator;
557	}	536	}
558		537
559	/**	538	/**
Lines 597-607 Link Here
597	IObservableSet observableSet = MasterDetailObservables.detailSet(	576	IObservableSet observableSet = MasterDetailObservables.detailSet(
598	master, setFactory(realm, propertyName, propertyType),	577	master, setFactory(realm, propertyName, propertyType),
599	propertyType);	578	propertyType);
600	BeanObservableSetDecorator decorator = new BeanObservableSetDecorator(	579	return new BeanObservableSetDecorator(observableSet, BeanPropertyHelper
601	observableSet, getValueTypePropertyDescriptor(master,	580	.getValueTypePropertyDescriptor(master, propertyName));
602	propertyName));
603
604	return decorator;
605	}	581	}
606		582
607	/**	583	/**
Lines 640-649 Link Here
640	IObservableValue master, String propertyName) {	616	IObservableValue master, String propertyName) {
641	IObservableMap observableMap = MasterDetailObservables.detailMap(	617	IObservableMap observableMap = MasterDetailObservables.detailMap(
642	master, mapPropertyFactory(realm, propertyName));	618	master, mapPropertyFactory(realm, propertyName));
643	BeanObservableMapDecorator decorator = new BeanObservableMapDecorator(	619	return new BeanObservableMapDecorator(observableMap, BeanPropertyHelper
644	observableMap, getValueTypePropertyDescriptor(master,	620	.getValueTypePropertyDescriptor(master, propertyName));
645	propertyName));
646	return decorator;
647	}	621	}
648		622
649	/**	623	/**
Lines 686-697 Link Here
686	*/	660	*/
687	public static IObservableSet observeSet(Realm realm, Object bean,	661	public static IObservableSet observeSet(Realm realm, Object bean,
688	String propertyName, Class elementType) {	662	String propertyName, Class elementType) {
689	PropertyDescriptor propertyDescriptor = getPropertyDescriptor(bean	663	ISetProperty property = BeanProperties.setProperty(bean.getClass(),
690	.getClass(), propertyName);	664	propertyName, elementType);
691	elementType = getCollectionElementType(elementType, propertyDescriptor);	665	PropertyDescriptor propertyDescriptor = ((IBeanProperty) property)
692		666	.getPropertyDescriptor();
693	return new JavaBeanObservableSet(realm, bean, propertyDescriptor,	667	return new BeanObservableSetDecorator(PropertyObservables.observeSet(
694	elementType);	668	realm, bean, property), propertyDescriptor);
695	}	669	}
696		670
697	/**	671	/**
Lines 826-857 Link Here
826	public static IObservableFactory mapPropertyFactory(String propertyName) {	800	public static IObservableFactory mapPropertyFactory(String propertyName) {
827	return mapPropertyFactory(Realm.getDefault(), propertyName);	801	return mapPropertyFactory(Realm.getDefault(), propertyName);
828	}	802	}
829
830	/**
831	* @param elementType
832	* can be <code>null</code>
833	* @param propertyDescriptor
834	* @return type of the items in a collection/array property
835	*/
836	/package/ static Class getCollectionElementType(Class elementType,
837	PropertyDescriptor propertyDescriptor) {
838	if (elementType == null) {
839	Class propertyType = propertyDescriptor.getPropertyType();
840	elementType = propertyType.isArray() ? propertyType
841	.getComponentType() : Object.class;
842	}
843
844	return elementType;
845	}
846
847	/**
848	* @param observable
849	* @param propertyName
850	* @return property descriptor or <code>null</code>
851	*/
852	/* package*/ static PropertyDescriptor getValueTypePropertyDescriptor(
853	IObservableValue observable, String propertyName) {
854	return (observable.getValueType() != null) ? getPropertyDescriptor(
855	(Class) observable.getValueType(), propertyName) : null;
856	}
857	}	803	}

Added Link Here

(-)src/org/eclipse/core/internal/databinding/beans/BeanPropertyChangeListener.java (+80 lines)
1	/*******************************************************************************
2	* Copyright (c) 2008 IBM Corporation and others.
3	* All rights reserved. This program and the accompanying materials
4	* are made available under the terms of the Eclipse Public License v1.0
5	* which accompanies this distribution, and is available at
6	* http://www.eclipse.org/legal/epl-v10.html
7	*
8	* Contributors:
9	* IBM Corporation - initial API and implementation
10	******************************************************************************/
11
12	package org.eclipse.core.internal.databinding.beans;
13
14	import java.beans.PropertyChangeEvent;
15	import java.beans.PropertyChangeListener;
16	import java.beans.PropertyDescriptor;
17	import java.util.Collections;
18	import java.util.HashMap;
19	import java.util.Map;
20
21	import org.eclipse.core.databinding.property.IPropertyChangeListener;
22
23	/**
24	* @since 3.3
25	*
26	*/
27	public abstract class BeanPropertyChangeListener implements
28	IPropertyChangeListener, PropertyChangeListener {
29	private final PropertyDescriptor propertyDescriptor;
30
31	private ListenerSupport listenerSupport;
32	private Map sourceToCached = Collections.synchronizedMap(new HashMap());
33
34	protected BeanPropertyChangeListener(PropertyDescriptor propertyDescriptor) {
35	this.propertyDescriptor = propertyDescriptor;
36	}
37
38	public final void propertyChange(PropertyChangeEvent evt) {
39	Object source = evt.getSource();
40	Object oldValue = evt.getOldValue();
41	Object newValue = evt.getNewValue();
42	if (oldValue == null && newValue == null) {
43	// Obscure condition indicating new and old
44	// values are unknown
45	oldValue = sourceToCached.get(source);
46	newValue = BeanPropertyHelper.getProperty(source,
47	propertyDescriptor);
48	}
49	sourceToCached.put(source, newValue);
50	handlePropertyChange(source, oldValue, newValue);
51	}
52
53	protected abstract void handlePropertyChange(Object source,
54	Object oldValue, Object newValue);
55
56	private void initListenerSupport() {
57	if (listenerSupport == null) {
58	synchronized (this) {
59	if (listenerSupport == null) {
60	listenerSupport = new ListenerSupport(this,
61	propertyDescriptor.getName());
62	}
63	}
64	}
65	}
66
67	protected void addListenerTo(Object source) {
68	initListenerSupport();
69	listenerSupport.hookListener(source);
70	sourceToCached.put(source, BeanPropertyHelper.getProperty(source,
71	propertyDescriptor));
72	}
73
74	protected void removeListenerFrom(Object source) {
75	if (listenerSupport != null) {
76	listenerSupport.unhookListener(source);
77	sourceToCached.remove(source);
78	}
79	}
80	}

Lines 14-19 Link Here

(-)META-INF/MANIFEST.MF (+3 lines)
14	org.eclipse.core.databinding.observable.masterdetail,	14	org.eclipse.core.databinding.observable.masterdetail,
15	org.eclipse.core.databinding.observable.set;x-internal:=false,	15	org.eclipse.core.databinding.observable.set;x-internal:=false,
16	org.eclipse.core.databinding.observable.value;x-internal:=false,	16	org.eclipse.core.databinding.observable.value;x-internal:=false,
		17	org.eclipse.core.databinding.property,
17	org.eclipse.core.databinding.util,	18	org.eclipse.core.databinding.util,
18	org.eclipse.core.databinding.validation;x-internal:=false,	19	org.eclipse.core.databinding.validation;x-internal:=false,
19	org.eclipse.core.internal.databinding;x-friends:="org.eclipse.core.databinding.beans",	20	org.eclipse.core.internal.databinding;x-friends:="org.eclipse.core.databinding.beans",
Lines 21-26 Link Here
21	org.eclipse.core.internal.databinding.observable;x-internal:=true,	22	org.eclipse.core.internal.databinding.observable;x-internal:=true,
22	org.eclipse.core.internal.databinding.observable.masterdetail;x-friends:="org.eclipse.jface.tests.databinding",	23	org.eclipse.core.internal.databinding.observable.masterdetail;x-friends:="org.eclipse.jface.tests.databinding",
23	org.eclipse.core.internal.databinding.observable.tree;x-friends:="org.eclipse.jface.databinding,org.eclipse.jface.tests.databinding",	24	org.eclipse.core.internal.databinding.observable.tree;x-friends:="org.eclipse.jface.databinding,org.eclipse.jface.tests.databinding",
		25	org.eclipse.core.internal.databinding.property;x-friends:="org.eclipse.jface.databinding,org.eclipse.jface.tests.databinding",
		26	org.eclipse.core.internal.databinding.property.masterdetail;x-friends:="org.eclipse.jface.databinding,org.eclipse.jface.tests.databinding",
24	org.eclipse.core.internal.databinding.validation;x-friends:="org.eclipse.jface.tests.databinding"	27	org.eclipse.core.internal.databinding.validation;x-friends:="org.eclipse.jface.tests.databinding"
25	Require-Bundle: org.eclipse.equinox.common;bundle-version="[3.2.0,4.0.0)"	28	Require-Bundle: org.eclipse.equinox.common;bundle-version="[3.2.0,4.0.0)"
26	Import-Package-Comment: see http://wiki.eclipse.org/	29	Import-Package-Comment: see http://wiki.eclipse.org/

Added Link Here

(-)src/org/eclipse/core/databinding/property/BasicMapProperty.java (+75 lines)
1	/*******************************************************************************
2	* Copyright (c) 2008 IBM Corporation and others.
3	* All rights reserved. This program and the accompanying materials
4	* are made available under the terms of the Eclipse Public License v1.0
5	* which accompanies this distribution, and is available at
6	* http://www.eclipse.org/legal/epl-v10.html
7	*
8	* Contributors:
9	* IBM Corporation - initial API and implementation
10	******************************************************************************/
11
12	package org.eclipse.core.databinding.property;
13
14	import java.util.HashMap;
15	import java.util.Iterator;
16	import java.util.Map;
17
18	/**
19	* Abstract map property implementation for properties where the map can be
20	* completely replaced in a single atomic operation.
21	* <p>
22	* For example, a map-typed bean property Customer.phoneNumbers can be modified
23	* by calling Customer.setPhoneNumbers(Map phoneNumbers).
24	*
25	* @since 1.2
26	*/
27	public abstract class BasicMapProperty extends MapProperty {
28	/**
29	* Sets the map property on the source to the specified map.
30	*
31	* @param source
32	* the property source
33	* @param map
34	* the new map
35	*/
36	protected abstract void setMap(Object source, Map map);
37
38	public void clear(Object source) {
39	if (!isEmpty(source))
40	setMap(source, new HashMap());
41	}
42
43	public Object put(Object source, Object key, Object value) {
44	Map map = new HashMap(getMap(source));
45	Object result = map.put(key, value);
46	setMap(source, map);
47	return result;
48	}
49
50	public void putAll(Object source, Map t) {
51	if (t.isEmpty())
52	return;
53	Map map = new HashMap(getMap(source));
54	for (Iterator it = t.entrySet().iterator(); it.hasNext();) {
55	Map.Entry entry = (Map.Entry) it.next();
56	map.put(entry.getKey(), entry.getValue());
57	}
58	setMap(source, map);
59	}
60
61	public Object remove(Object source, Object key) {
62	Map map = getMap(source);
63	if (map.containsKey(key)) {
64	map = new HashMap(map);
65	Object result = map.remove(key);
66	setMap(source, map);
67	return result;
68	}
69	return null;
70	}
71
72	public int size(Object source) {
73	return getMap(source).size();
74	}
75	}