Attachment 224672 Details for Bug 377501 – Add the negative connection controls

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[patch] Add the negative connection controls

Message_Connection_252_update.patch (text/plain), 43.74 KB, created by Yves YANG

on 2012-12-13 11:01:57 EST

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Filename:

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Creator: Yves YANG

Created: 2012-12-13 11:01:57 EST

Size: 43.74 KB

patch

obsolete

>Index: custom-src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/AbstractMessageItemSemanticEditPolicy.java
>===================================================================
>--- custom-src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/AbstractMessageItemSemanticEditPolicy.java	(revision 0)
>+++ custom-src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/AbstractMessageItemSemanticEditPolicy.java	(revision 0)
>@@ -0,0 +1,67 @@
>+/*****************************************************************************
>+ * Copyright (c) 2009 CEA
>+ *
>+ *    
>+ * 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:
>+ *   Soyatec - Initial API and implementation
>+ *
>+ *****************************************************************************/
>+package org.eclipse.papyrus.uml.diagram.sequence.edit.policies;
>+
>+import org.eclipse.emf.ecore.EObject;
>+import org.eclipse.emf.transaction.TransactionalEditingDomain;
>+import org.eclipse.gef.commands.Command;
>+import org.eclipse.gef.requests.ReconnectRequest;
>+import org.eclipse.gmf.runtime.diagram.core.util.ViewUtil;
>+import org.eclipse.gmf.runtime.diagram.ui.editparts.IGraphicalEditPart;
>+import org.eclipse.gmf.runtime.emf.type.core.IElementType;
>+import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
>+import org.eclipse.gmf.runtime.notation.View;
>+
>+
>+/**
>+ * Abstract ItemSemanticEditPolicy for messages.
>+ * 
>+ * Try to fixed bugs about reorient target of messages, because all Message EditParts implementing ITreeBranchEditPart, if we want to reorient target
>+ * of a message to another message, the new target would be redirected to the target of the message. GMF use this to merge two links, but we doesn't
>+ * need them for message creation.
>+ * 
>+ * @author Jin Liu (jin.liu@soyatec.com)
>+ */
>+public class AbstractMessageItemSemanticEditPolicy extends UMLBaseItemSemanticEditPolicy {
>+
>+	protected AbstractMessageItemSemanticEditPolicy(IElementType elementType) {
>+		super(elementType);
>+	}
>+
>+	protected Command getReorientRelationshipTargetCommand(ReconnectRequest request) {
>+		EObject connectionSemElement = ViewUtil.resolveSemanticElement((View)request.getConnectionEditPart().getModel());
>+		EObject targetSemElement = ViewUtil.resolveSemanticElement((View)request.getTarget().getModel());
>+		EObject oldSemElement = ViewUtil.resolveSemanticElement((View)request.getConnectionEditPart().getTarget().getModel());
>+
>+		// check if we need to redirect the semantic request because of a tree
>+		// gesture.
>+		//		String connectionHint = ViewUtil.getSemanticElementClassId((View)request.getConnectionEditPart().getModel());
>+		//		if(((View)request.getTarget().getModel()).getElement() != null) {
>+		//			String targetHint = ViewUtil.getSemanticElementClassId((View)request.getTarget().getModel());
>+		//			if(request.getConnectionEditPart() instanceof ITreeBranchEditPart && request.getTarget() instanceof ITreeBranchEditPart && connectionHint.equals(targetHint)) {
>+		//				ITreeBranchEditPart targetBranch = (ITreeBranchEditPart)request.getTarget();
>+		//
>+		//				targetSemElement = ViewUtil.resolveSemanticElement((View)targetBranch.getTarget().getModel());
>+		//			}
>+		//		}
>+
>+		TransactionalEditingDomain editingDomain = ((IGraphicalEditPart)getHost()).getEditingDomain();
>+		ReorientRelationshipRequest semRequest = new ReorientRelationshipRequest(editingDomain, connectionSemElement, targetSemElement, oldSemElement, ReorientRelationshipRequest.REORIENT_TARGET);
>+
>+		semRequest.addParameters(request.getExtendedData());
>+
>+		return getSemanticCommand(semRequest);
>+	}
>+
>+}
>Index: custom-src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/SequenceGraphicalNodeEditPolicy.java
>===================================================================
>--- custom-src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/SequenceGraphicalNodeEditPolicy.java	(revision 9619)
>+++ custom-src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/SequenceGraphicalNodeEditPolicy.java	(working copy)
>@@ -23,6 +23,7 @@
> import org.eclipse.draw2d.ConnectionRouter;
> import org.eclipse.draw2d.IFigure;
> import org.eclipse.draw2d.Polyline;
>+import org.eclipse.draw2d.Viewport;
> import org.eclipse.draw2d.geometry.Point;
> import org.eclipse.draw2d.geometry.Rectangle;
> import org.eclipse.gef.ConnectionEditPart;
>@@ -209,14 +210,39 @@
> 			}
> 
> 		}
>-
>-		request.getExtendedData().put(
>-				SequenceRequestConstant.SOURCE_LOCATION_DATA,
>-				request.getLocation());
>-
>+		
>+		/**
>+		 * Sometime, the viewport would be scrolled when drag to select the target of connection by using AutoexposeHelper. We need to adjust the source
>+		 * location if needed.
>+		 */
>+		PointEx sourcePoint = new PointEx(request.getLocation());
>+		Viewport vp = findViewport((GraphicalEditPart)getHost().getViewer().getRootEditPart());
>+		if(vp != null) {
>+			Point loc1 = vp.getClientArea().getLocation().getCopy();
>+			sourcePoint.setViewportLocation(loc1);
>+		}
>+		request.getExtendedData().put(SequenceRequestConstant.SOURCE_LOCATION_DATA, sourcePoint);
>+		//Safely calculate the source model container here.
>+		request.getExtendedData().put(SequenceRequestConstant.SOURCE_MODEL_CONTAINER, SequenceUtil.findInteractionFragmentContainerAt(sourcePoint, getHost()));
> 		return super.getConnectionCreateCommand(request);
> 	}
> 
>+	protected Viewport findViewport(GraphicalEditPart part) {
>+		IFigure figure = null;
>+		Viewport port = null;
>+		do {
>+			if(figure == null)
>+				figure = part.getContentPane();
>+			else
>+				figure = figure.getParent();
>+			if(figure instanceof Viewport) {
>+				port = (Viewport)figure;
>+				break;
>+			}
>+		} while(figure != part.getFigure() && figure != null);
>+		return port;
>+	}
>+
> 	/**
> 	 * Overrides to disable uphill message
> 	 */
>@@ -245,7 +271,15 @@
> 
> 		Point sourcePoint = (Point)request.getExtendedData().get(SequenceRequestConstant.SOURCE_LOCATION_DATA);
> 		Point targetPoint = request.getLocation();
>-
>+		
>+		//Adjust source location to current coordinate system (the viewport may be scrolled by AutoexposeHelper.).
>+		if(sourcePoint instanceof PointEx) {
>+			Viewport vp = findViewport((GraphicalEditPart)getHost().getViewer().getRootEditPart());
>+			if(vp != null) {
>+				Point loc2 = vp.getClientArea().getLocation();
>+				sourcePoint = ((PointEx)sourcePoint).adjustToFitNewViewport(loc2);
>+			}
>+		}
> 		// prevent uphill message (leave margin for horizontal messages)
> 		boolean messageCreate =((IHintedType)UMLElementTypes.Message_4006).getSemanticHint().equals(requestHint);
> 		if(sourcePoint == null || sourcePoint.y >= targetPoint.y + MARGIN) {
>@@ -275,7 +309,8 @@
> 				return UnexecutableCommand.INSTANCE;
> 		}
> 
>-		request.getExtendedData().put(SequenceRequestConstant.SOURCE_MODEL_CONTAINER, SequenceUtil.findInteractionFragmentContainerAt(sourcePoint, getHost()));
>+		//The SOURCE MODEL should be calculated when connection started, the scroll bar maybe already changed when connection come to finished.
>+		//		request.getExtendedData().put(SequenceRequestConstant.SOURCE_MODEL_CONTAINER, SequenceUtil.findInteractionFragmentContainerAt(sourcePoint, getHost()));
> 		request.getExtendedData().put(SequenceRequestConstant.TARGET_MODEL_CONTAINER, SequenceUtil.findInteractionFragmentContainerAt(targetPoint, getHost()));
> 		// In case we are creating a connection to/from a CoRegion, we will need the lifeline element where is drawn the CoRegion later in the process.
> 		EditPart targetEditPart = getTargetEditPart(request);
>@@ -521,4 +556,36 @@
> 		}
> 		return super.getDummyConnectionRouter(req);
> 	}
>+	
>+	/**
>+	 * A new point class which can hold the location of the viewpoint. The user can use adjustToFitNewViewport() service to get the correctly point in
>+	 * given viewport.
>+	 * 
>+	 * @author Jin Liu
>+	 */
>+	private static class PointEx extends Point {
>+
>+		private static final long serialVersionUID = -3049675238350676816L;
>+
>+		private Point viewportLocation;
>+
>+		public PointEx(Point pt) {
>+			super(pt);
>+		}
>+
>+		public void setViewportLocation(Point p) {
>+			if(p != null) {
>+				viewportLocation = p.getCopy();
>+			}
>+		}
>+
>+		public Point adjustToFitNewViewport(Point newViewportLoc) {
>+			Point pt = getCopy();
>+			if(newViewportLoc != null && viewportLocation != null && !newViewportLoc.equals(viewportLocation)) {
>+				pt.x += (viewportLocation.x - newViewportLoc.x);
>+				pt.y += (viewportLocation.y - newViewportLoc.y);
>+			}
>+			return pt;
>+		}
>+	}
> }
>Index: custom-src/org/eclipse/papyrus/uml/diagram/sequence/util/LifelineMessageCreateHelper.java
>===================================================================
>--- custom-src/org/eclipse/papyrus/uml/diagram/sequence/util/LifelineMessageCreateHelper.java	(revision 9619)
>+++ custom-src/org/eclipse/papyrus/uml/diagram/sequence/util/LifelineMessageCreateHelper.java	(working copy)
>@@ -167,7 +167,7 @@
> 
> 	public static Command reconnectMessageCreateTarget(ReconnectRequest request, Command command) {
> 		LifelineEditPart oldTarget = (LifelineEditPart)request.getConnectionEditPart().getTarget();
>-		LifelineEditPart source = (LifelineEditPart)request.getConnectionEditPart().getSource();
>+//		LifelineEditPart source = (LifelineEditPart)request.getConnectionEditPart().getSource();
> 		LifelineEditPart newTarget = (LifelineEditPart)request.getTarget();
> 		// move up the original connection target lifeline, it has only one create message, which will be removed
> 		if(getIncomingMessageCreate(oldTarget).size() == 1) {
>Index: custom-src/org/eclipse/papyrus/uml/diagram/sequence/util/ReconnectMessageHelper.java
>===================================================================
>--- custom-src/org/eclipse/papyrus/uml/diagram/sequence/util/ReconnectMessageHelper.java	(revision 9619)
>+++ custom-src/org/eclipse/papyrus/uml/diagram/sequence/util/ReconnectMessageHelper.java	(working copy)
>@@ -24,7 +24,6 @@
> import org.eclipse.uml2.uml.Message;
> import org.eclipse.uml2.uml.MessageEnd;
> import org.eclipse.uml2.uml.MessageOccurrenceSpecification;
>-import org.eclipse.uml2.uml.MessageSort;
> import org.eclipse.uml2.uml.OccurrenceSpecification;
> 
> /**
>@@ -152,31 +151,4 @@
> 		}
> 	}
> 
>-	/**
>-	 * It seems that OCL constraints can not hold everything about reconnecting messages.
>-	 * 
>-	 * @param message
>-	 * @param newTarget
>-	 */
>-	public static boolean canReorientTarget(Message message, Element newTarget) {
>-		if(message == null || newTarget == null) {
>-			return false;
>-		}
>-		MessageSort messageSort = message.getMessageSort();
>-		if(MessageSort.SYNCH_CALL_LITERAL == messageSort) {
>-			return newTarget instanceof ExecutionSpecification;
>-		}
>-		return true;
>-	}
>-
>-	public static boolean canReorientSource(Message message, Element newSource) {
>-		if(message == null || newSource == null) {
>-			return false;
>-		}
>-		MessageSort messageSort = message.getMessageSort();
>-		if(MessageSort.SYNCH_CALL_LITERAL == messageSort) {
>-			return newSource instanceof ExecutionSpecification;
>-		}
>-		return true;
>-	}
> }
>Index: custom-src/org/eclipse/papyrus/uml/diagram/sequence/util/MessageConnectionHelper.java
>===================================================================
>--- custom-src/org/eclipse/papyrus/uml/diagram/sequence/util/MessageConnectionHelper.java	(revision 0)
>+++ custom-src/org/eclipse/papyrus/uml/diagram/sequence/util/MessageConnectionHelper.java	(revision 0)
>@@ -0,0 +1,184 @@
>+/*****************************************************************************
>+ * Copyright (c) 2009 CEA
>+ *
>+ *    
>+ * 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:
>+ *   Soyatec - Initial API and implementation
>+ *
>+ *****************************************************************************/
>+package org.eclipse.papyrus.uml.diagram.sequence.util;
>+
>+import org.eclipse.emf.common.util.EList;
>+import org.eclipse.uml2.uml.Element;
>+import org.eclipse.uml2.uml.ExecutionSpecification;
>+import org.eclipse.uml2.uml.Gate;
>+import org.eclipse.uml2.uml.Lifeline;
>+import org.eclipse.uml2.uml.Message;
>+import org.eclipse.uml2.uml.MessageEnd;
>+import org.eclipse.uml2.uml.MessageSort;
>+import org.eclipse.uml2.uml.NamedElement;
>+import org.eclipse.uml2.uml.OccurrenceSpecification;
>+
>+
>+/**
>+ * Helper class for determine the message connections. Both for connecting and reconnecting.
>+ * 
>+ * @author Jin Liu (jin.liu@soyatec.com)
>+ */
>+public class MessageConnectionHelper {
>+
>+	public static boolean debug = false;
>+
>+	private MessageConnectionHelper() {
>+	}
>+
>+	public static boolean canReorientSource(Message message, Element newSource) {
>+		if(message == null || newSource == null) {
>+			return false;
>+		}
>+		Element target = null;
>+		MessageEnd receiveEvent = message.getReceiveEvent();
>+		if(receiveEvent instanceof OccurrenceSpecification) {
>+			EList<Lifeline> covereds = ((OccurrenceSpecification)receiveEvent).getCovereds();
>+			if(!covereds.isEmpty()) {
>+				target = covereds.get(0);
>+			}
>+		} else if(receiveEvent instanceof Gate) {
>+			target = ((Gate)receiveEvent).getOwner();
>+		}
>+		return canExist(message.getMessageSort(), newSource, target);
>+	}
>+
>+	public static boolean canReorientTarget(Message message, Element newTarget) {
>+		if(message == null || newTarget == null) {
>+			return false;
>+		}
>+		Element source = null;
>+		MessageEnd sendEvent = message.getSendEvent();
>+		if(sendEvent instanceof OccurrenceSpecification) {
>+			EList<Lifeline> covereds = ((OccurrenceSpecification)sendEvent).getCovereds();
>+			if(!covereds.isEmpty()) {
>+				source = covereds.get(0);
>+			}
>+		} else if(sendEvent instanceof Gate) {
>+			source = ((Gate)sendEvent).getOwner();
>+		}
>+		return canExist(message.getMessageSort(), source, newTarget);
>+	}
>+
>+	public static boolean canExist(MessageSort messageSort, Element source, Element target) {
>+		if(debug) {
>+			print(messageSort, source, target);
>+		}
>+		if(MessageSort.ASYNCH_CALL_LITERAL == messageSort) {
>+			return canExistAsynchMessage(source, target);
>+		} else if(MessageSort.ASYNCH_SIGNAL_LITERAL == messageSort) {
>+			if(source == null) {
>+				return canExistFoundMessage(target);
>+			}
>+			if(target == null) {
>+				return canExistLostMessage(source);
>+			}
>+		} else if(MessageSort.SYNCH_CALL_LITERAL == messageSort) {
>+			return canExistSynchMessage(source, target);
>+		} else if(MessageSort.CREATE_MESSAGE_LITERAL == messageSort) {
>+			return canExistCreateMessage(source, target);
>+		} else if(MessageSort.DELETE_MESSAGE_LITERAL == messageSort) {
>+			return canExistDeleteMessage(source, target);
>+		} else if(MessageSort.REPLY_LITERAL == messageSort) {
>+			return canExistReplyMessage(source, target);
>+		}
>+		return false;
>+	}
>+
>+	private static void print(MessageSort messageSort, Element source, Element target) {
>+		StringBuffer buf = new StringBuffer();
>+		if(messageSort != null) {
>+			buf.append(messageSort.getName());
>+			buf.append("[");
>+		}
>+		buf.append("Source: ");
>+		if(source != null) {
>+			buf.append(source.eClass().getName());
>+			if(source instanceof NamedElement) {
>+				buf.append("(");
>+				buf.append(((NamedElement)source).getName());
>+				buf.append(")");
>+			}
>+		} else {
>+			buf.append("null");
>+		}
>+		buf.append(", Target: ");
>+		if(target != null) {
>+			buf.append(target.eClass().getName());
>+			if(target instanceof NamedElement) {
>+				buf.append("(");
>+				buf.append(((NamedElement)target).getName());
>+				buf.append(")");
>+			}
>+		} else {
>+			buf.append("null");
>+		}
>+		buf.append("]");
>+		System.out.println(new String(buf));
>+	}
>+
>+	public static boolean canExistReplyMessage(Element source, Element target) {
>+		if(target instanceof Message) {
>+			return false;
>+		}
>+		if(source instanceof ExecutionSpecification && target instanceof Lifeline) {
>+			if(((ExecutionSpecification)source).getCovereds().contains(target)) {
>+				return false;
>+			}
>+		}
>+		return true;
>+	}
>+
>+	public static boolean canExistDeleteMessage(Element source, Element target) {
>+		return true;
>+	}
>+
>+	public static boolean canExistCreateMessage(Element source, Element target) {
>+		if(target != null) {
>+			if(false == target instanceof Lifeline) {
>+				return false;
>+			}
>+			if(target == source) {
>+				return false;
>+			}
>+		}
>+		return true;
>+	}
>+
>+	public static boolean canExistSynchMessage(Element source, Element target) {
>+		if(source != null && false == source instanceof ExecutionSpecification) {
>+			return false;
>+		}
>+		if(target != null && !(target instanceof ExecutionSpecification || target instanceof Lifeline)) {
>+			return false;
>+		}
>+		return true;
>+	}
>+
>+	public static boolean canExistLostMessage(Element source) {
>+		return true;
>+	}
>+
>+	public static boolean canExistFoundMessage(Element target) {
>+		return true;
>+	}
>+
>+	public static boolean canExistAsynchMessage(Element source, Element target) {
>+		if(target instanceof Message) {
>+			return false;
>+		}
>+		return true;
>+	}
>+
>+}
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message7ReorientCommand.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message7ReorientCommand.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message7ReorientCommand.java	(working copy)
>@@ -75,7 +75,7 @@
> 	}
> 
> 	/**
>-	 * @generated
>+	 * @generated NOT
> 	 */
> 	protected boolean canReorientSource() {
> 		if(!(oldEnd instanceof Element && newEnd instanceof Element)) {
>@@ -93,7 +93,7 @@
> 	}
> 
> 	/**
>-	 * @generated
>+	 * @generated NOT
> 	 */
> 	protected boolean canReorientTarget() {
> 		if(!(oldEnd instanceof Element && newEnd instanceof Element)) {
>@@ -104,7 +104,13 @@
> 			return false;
> 		}
> 		Interaction container = (Interaction)getLink().eContainer();
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4009(container, getLink(), source, getNewTarget());
>+		//Fixed bug about message reconnection.
>+		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4009(container, getLink(), source, getNewTarget())) {
>+			return false;
>+		}
>+		//FIXME: Please complete reorientTarget() firstly.
>+		return false;
>+//		return MessageConnectionHelper.canReorientTarget(getLink(), getNewTarget());
> 	}
> 
> 	/**
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message4ReorientCommand.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message4ReorientCommand.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message4ReorientCommand.java	(working copy)
>@@ -21,6 +21,7 @@
> import org.eclipse.gmf.runtime.emf.type.core.commands.EditElementCommand;
> import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
> import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
>+import org.eclipse.papyrus.uml.diagram.sequence.util.MessageConnectionHelper;
> import org.eclipse.papyrus.uml.diagram.sequence.util.ReconnectMessageHelper;
> import org.eclipse.uml2.uml.Element;
> import org.eclipse.uml2.uml.Interaction;
>@@ -84,11 +85,14 @@
> 		}
> 		Interaction container = (Interaction)getLink().eContainer();
> 
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4006(container, getLink(), getNewSource(), getOldTarget());
>+		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4006(container, getLink(), getNewSource(), getOldTarget())) {
>+			return false;
>+		}
>+		return MessageConnectionHelper.canReorientSource(getLink(), getNewSource());
> 	}
> 
> 	/**
>-	 * @generated
>+	 * @generated NOT
> 	 */
> 	protected boolean canReorientTarget() {
> 		if(!(oldEnd instanceof Element && newEnd instanceof Element)) {
>@@ -99,7 +103,10 @@
> 			return false;
> 		}
> 		Interaction container = (Interaction)getLink().eContainer();
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4006(container, getLink(), source, getNewTarget());
>+		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4006(container, getLink(), source, getNewTarget())) {
>+			return false;
>+		}
>+		return MessageConnectionHelper.canReorientTarget(getLink(), getNewTarget());
> 	}
> 
> 	/**
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/MessageCreateCommand.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/MessageCreateCommand.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/MessageCreateCommand.java	(working copy)
>@@ -26,6 +26,7 @@
> import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
> import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
> import org.eclipse.papyrus.uml.diagram.sequence.util.CommandHelper;
>+import org.eclipse.papyrus.uml.diagram.sequence.util.MessageConnectionHelper;
> import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceRequestConstant;
> import org.eclipse.uml2.uml.Element;
> import org.eclipse.uml2.uml.Interaction;
>@@ -93,7 +94,10 @@
> 			}
> 		}
> 
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_4003(getContainer(), getSource(), getTarget());
>+		if (! UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_4003(getContainer(), getSource(), getTarget())){
>+			return false;
>+		}
>+		return MessageConnectionHelper.canExist(MessageSort.SYNCH_CALL_LITERAL, (Element)source, (Element)target);
> 	}
> 
> 	/**
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message3ReorientCommand.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message3ReorientCommand.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message3ReorientCommand.java	(working copy)
>@@ -21,6 +21,7 @@
> import org.eclipse.gmf.runtime.emf.type.core.commands.EditElementCommand;
> import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
> import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
>+import org.eclipse.papyrus.uml.diagram.sequence.util.MessageConnectionHelper;
> import org.eclipse.papyrus.uml.diagram.sequence.util.ReconnectMessageHelper;
> import org.eclipse.uml2.uml.Element;
> import org.eclipse.uml2.uml.Interaction;
>@@ -83,11 +84,14 @@
> 			return false;
> 		}
> 		Interaction container = (Interaction)getLink().eContainer();
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4005(container, getLink(), getNewSource(), getOldTarget());
>+		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4005(container, getLink(), getNewSource(), getOldTarget())) {
>+			return false;
>+		}
>+		return MessageConnectionHelper.canReorientSource(getLink(), getNewSource());
> 	}
> 
> 	/**
>-	 * @generated
>+	 * @generated NOT
> 	 */
> 	protected boolean canReorientTarget() {
> 		if(!(oldEnd instanceof Element && newEnd instanceof Element)) {
>@@ -98,7 +102,10 @@
> 			return false;
> 		}
> 		Interaction container = (Interaction)getLink().eContainer();
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4005(container, getLink(), source, getNewTarget());
>+		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4005(container, getLink(), source, getNewTarget())) {
>+			return false;
>+		}
>+		return MessageConnectionHelper.canReorientTarget(getLink(), getNewTarget());
> 	}
> 
> 	/**
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message2ReorientCommand.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message2ReorientCommand.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message2ReorientCommand.java	(working copy)
>@@ -21,6 +21,7 @@
> import org.eclipse.gmf.runtime.emf.type.core.commands.EditElementCommand;
> import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
> import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
>+import org.eclipse.papyrus.uml.diagram.sequence.util.MessageConnectionHelper;
> import org.eclipse.papyrus.uml.diagram.sequence.util.ReconnectMessageHelper;
> import org.eclipse.uml2.uml.Element;
> import org.eclipse.uml2.uml.Interaction;
>@@ -83,11 +84,14 @@
> 			return false;
> 		}
> 		Interaction container = (Interaction)getLink().eContainer();
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4004(container, getLink(), getNewSource(), getOldTarget());
>+		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4004(container, getLink(), getNewSource(), getOldTarget())) {
>+			return false;
>+		}
>+		return MessageConnectionHelper.canReorientSource(getLink(), getNewSource());
> 	}
> 
> 	/**
>-	 * @generated
>+	 * @generated NOT
> 	 */
> 	protected boolean canReorientTarget() {
> 		if(!(oldEnd instanceof Element && newEnd instanceof Element)) {
>@@ -98,7 +102,10 @@
> 			return false;
> 		}
> 		Interaction container = (Interaction)getLink().eContainer();
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4004(container, getLink(), source, getNewTarget());
>+		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4004(container, getLink(), source, getNewTarget())) {
>+			return false;
>+		}
>+		return MessageConnectionHelper.canReorientTarget(getLink(), getNewTarget());
> 	}
> 
> 	/**
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message2CreateCommand.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message2CreateCommand.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message2CreateCommand.java	(working copy)
>@@ -28,9 +28,11 @@
> import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
> import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
> import org.eclipse.papyrus.uml.diagram.sequence.util.CommandHelper;
>+import org.eclipse.papyrus.uml.diagram.sequence.util.MessageConnectionHelper;
> import org.eclipse.uml2.uml.Element;
> import org.eclipse.uml2.uml.Interaction;
> import org.eclipse.uml2.uml.Message;
>+import org.eclipse.uml2.uml.MessageSort;
> 
> /**
>  * @generated
>@@ -100,7 +102,10 @@
> 				return false;
> 			}
> 		}
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_4004(getContainer(), getSource(), getTarget());
>+		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_4004(getContainer(), getSource(), getTarget())) {
>+			return false;
>+		}
>+		return MessageConnectionHelper.canExist(MessageSort.ASYNCH_CALL_LITERAL, getSource(), getTarget());
> 	}
> 
> 	/**
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message3CreateCommand.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message3CreateCommand.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message3CreateCommand.java	(working copy)
>@@ -26,6 +26,7 @@
> import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
> import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
> import org.eclipse.papyrus.uml.diagram.sequence.util.CommandHelper;
>+import org.eclipse.papyrus.uml.diagram.sequence.util.MessageConnectionHelper;
> import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceRequestConstant;
> import org.eclipse.uml2.uml.Element;
> import org.eclipse.uml2.uml.Interaction;
>@@ -91,7 +92,10 @@
> 				return false;
> 			}
> 		}
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_4005(getContainer(), getSource(), getTarget());
>+		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_4005(getContainer(), getSource(), getTarget())) {
>+			return false;
>+		}
>+		return MessageConnectionHelper.canExist(MessageSort.REPLY_LITERAL, getSource(), getTarget());
> 	}
> 
> 	/**
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message6ReorientCommand.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message6ReorientCommand.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message6ReorientCommand.java	(working copy)
>@@ -21,6 +21,7 @@
> import org.eclipse.gmf.runtime.emf.type.core.commands.EditElementCommand;
> import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
> import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
>+import org.eclipse.papyrus.uml.diagram.sequence.util.MessageConnectionHelper;
> import org.eclipse.uml2.uml.Element;
> import org.eclipse.uml2.uml.Interaction;
> import org.eclipse.uml2.uml.Message;
>@@ -75,7 +76,7 @@
> 	}
> 
> 	/**
>-	 * @generated
>+	 * @generated NOT
> 	 */
> 	protected boolean canReorientSource() {
> 		if(!(oldEnd instanceof Element && newEnd instanceof Element)) {
>@@ -89,7 +90,10 @@
> 			return false;
> 		}
> 		Interaction container = (Interaction)getLink().eContainer();
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4008(container, getLink(), getNewSource(), target);
>+		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4008(container, getLink(), getNewSource(), target)){
>+			return false;
>+		}
>+		return MessageConnectionHelper.canReorientSource(getLink(), getNewSource());
> 	}
> 
> 	/**
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message5CreateCommand.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message5CreateCommand.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message5CreateCommand.java	(working copy)
>@@ -31,6 +31,7 @@
> import org.eclipse.papyrus.uml.diagram.common.commands.EObjectInheritanceCopyCommand;
> import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
> import org.eclipse.papyrus.uml.diagram.sequence.util.CommandHelper;
>+import org.eclipse.papyrus.uml.diagram.sequence.util.MessageConnectionHelper;
> import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceRequestConstant;
> import org.eclipse.uml2.uml.DestructionOccurrenceSpecification;
> import org.eclipse.uml2.uml.Element;
>@@ -102,7 +103,10 @@
> 				return false;
> 			}
> 		}
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_4007(getContainer(), getSource(), getTarget());
>+		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_4007(getContainer(), getSource(), getTarget())) {
>+			return false;
>+		}
>+		return MessageConnectionHelper.canExist(MessageSort.DELETE_MESSAGE_LITERAL, getSource(), getTarget());
> 	}
> 
> 	/**
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/MessageReorientCommand.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/MessageReorientCommand.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/MessageReorientCommand.java	(working copy)
>@@ -21,6 +21,7 @@
> import org.eclipse.gmf.runtime.emf.type.core.commands.EditElementCommand;
> import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
> import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
>+import org.eclipse.papyrus.uml.diagram.sequence.util.MessageConnectionHelper;
> import org.eclipse.papyrus.uml.diagram.sequence.util.ReconnectMessageHelper;
> import org.eclipse.uml2.uml.Element;
> import org.eclipse.uml2.uml.Interaction;
>@@ -88,7 +89,7 @@
> 			return false;
> 		}
> 		//Fixed bug about reconnect messages.
>-		return ReconnectMessageHelper.canReorientSource(getLink(), getNewSource());
>+		return MessageConnectionHelper.canReorientSource(getLink(), getNewSource());
> 	}
> 
> 	/**
>@@ -106,7 +107,7 @@
> 		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4003(container, getLink(), source, getNewTarget())) {
> 			return false;
> 		}
>-		return ReconnectMessageHelper.canReorientTarget(getLink(), getNewTarget());
>+		return MessageConnectionHelper.canReorientTarget(getLink(), getNewTarget());
> 	}
> 
> 	/**
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message4CreateCommand.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message4CreateCommand.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message4CreateCommand.java	(working copy)
>@@ -26,6 +26,7 @@
> import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
> import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
> import org.eclipse.papyrus.uml.diagram.sequence.util.CommandHelper;
>+import org.eclipse.papyrus.uml.diagram.sequence.util.MessageConnectionHelper;
> import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceRequestConstant;
> import org.eclipse.uml2.uml.Element;
> import org.eclipse.uml2.uml.Interaction;
>@@ -91,7 +92,10 @@
> 				return false;
> 			}
> 		}
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_4006(getContainer(), getSource(), getTarget());
>+		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_4006(getContainer(), getSource(), getTarget())) {
>+			return false;
>+		}
>+		return MessageConnectionHelper.canExist(MessageSort.CREATE_MESSAGE_LITERAL, getSource(), getTarget());
> 	}
> 
> 	/**
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message6CreateCommand.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message6CreateCommand.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message6CreateCommand.java	(working copy)
>@@ -26,6 +26,7 @@
> import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
> import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
> import org.eclipse.papyrus.uml.diagram.sequence.util.CommandHelper;
>+import org.eclipse.papyrus.uml.diagram.sequence.util.MessageConnectionHelper;
> import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceRequestConstant;
> import org.eclipse.uml2.uml.Element;
> import org.eclipse.uml2.uml.Interaction;
>@@ -91,7 +92,10 @@
> 				return false;
> 			}
> 		}
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_4008(getContainer(), getSource(), getTarget());
>+		if (!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_4008(getContainer(), getSource(), getTarget())){
>+			return false;
>+		}
>+		return MessageConnectionHelper.canExist(MessageSort.ASYNCH_SIGNAL_LITERAL, getSource(), null);
> 	}
> 
> 	/**
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message5ReorientCommand.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message5ReorientCommand.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message5ReorientCommand.java	(working copy)
>@@ -21,6 +21,7 @@
> import org.eclipse.gmf.runtime.emf.type.core.commands.EditElementCommand;
> import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
> import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
>+import org.eclipse.papyrus.uml.diagram.sequence.util.MessageConnectionHelper;
> import org.eclipse.papyrus.uml.diagram.sequence.util.ReconnectMessageHelper;
> import org.eclipse.uml2.uml.Element;
> import org.eclipse.uml2.uml.Interaction;
>@@ -83,11 +84,14 @@
> 			return false;
> 		}
> 		Interaction container = (Interaction)getLink().eContainer();
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4007(container, getLink(), getNewSource(), getOldTarget());
>+		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4007(container, getLink(), getNewSource(), getOldTarget())) {
>+			return false;
>+		}
>+		return MessageConnectionHelper.canReorientSource(getLink(), getNewSource());
> 	}
> 
> 	/**
>-	 * @generated
>+	 * @generated NOT
> 	 */
> 	protected boolean canReorientTarget() {
> 		if(!(oldEnd instanceof Element && newEnd instanceof Element)) {
>@@ -98,7 +102,10 @@
> 			return false;
> 		}
> 		Interaction container = (Interaction)getLink().eContainer();
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4007(container, getLink(), source, getNewTarget());
>+		if(!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_4007(container, getLink(), source, getNewTarget())) {
>+			return false;
>+		}
>+		return MessageConnectionHelper.canReorientTarget(getLink(), getNewTarget());
> 	}
> 
> 	/**
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message7CreateCommand.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message7CreateCommand.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/commands/Message7CreateCommand.java	(working copy)
>@@ -26,6 +26,7 @@
> import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
> import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
> import org.eclipse.papyrus.uml.diagram.sequence.util.CommandHelper;
>+import org.eclipse.papyrus.uml.diagram.sequence.util.MessageConnectionHelper;
> import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceRequestConstant;
> import org.eclipse.uml2.uml.Element;
> import org.eclipse.uml2.uml.Interaction;
>@@ -91,7 +92,11 @@
> 				return false;
> 			}
> 		}
>-		return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_4009(getContainer(), getSource(), getTarget());
>+		//Fixed bug about message connection.
>+		if (! UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_4009(getContainer(), getSource(), getTarget())){
>+			return false;
>+		}
>+		return MessageConnectionHelper.canExist(MessageSort.ASYNCH_SIGNAL_LITERAL, null, getTarget());
> 	}
> 
> 	/**
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/MessageItemSemanticEditPolicy.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/MessageItemSemanticEditPolicy.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/MessageItemSemanticEditPolicy.java	(working copy)
>@@ -56,9 +56,9 @@
> import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceDeleteHelper;
> 
> /**
>- * @generated
>+ * @generated NOT
>  */
>-public class MessageItemSemanticEditPolicy extends UMLBaseItemSemanticEditPolicy {
>+public class MessageItemSemanticEditPolicy extends AbstractMessageItemSemanticEditPolicy {
> 
> 	/**
> 	 * @generated
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message5ItemSemanticEditPolicy.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message5ItemSemanticEditPolicy.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message5ItemSemanticEditPolicy.java	(working copy)
>@@ -56,9 +56,9 @@
> import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceDeleteHelper;
> 
> /**
>- * @generated
>+ * @generated NOT
>  */
>-public class Message5ItemSemanticEditPolicy extends UMLBaseItemSemanticEditPolicy {
>+public class Message5ItemSemanticEditPolicy extends AbstractMessageItemSemanticEditPolicy {
> 
> 	/**
> 	 * @generated
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message7ItemSemanticEditPolicy.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message7ItemSemanticEditPolicy.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message7ItemSemanticEditPolicy.java	(working copy)
>@@ -56,9 +56,9 @@
> import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceDeleteHelper;
> 
> /**
>- * @generated
>+ * @generated NOT
>  */
>-public class Message7ItemSemanticEditPolicy extends UMLBaseItemSemanticEditPolicy {
>+public class Message7ItemSemanticEditPolicy extends AbstractMessageItemSemanticEditPolicy {
> 
> 	/**
> 	 * @generated
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message2ItemSemanticEditPolicy.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message2ItemSemanticEditPolicy.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message2ItemSemanticEditPolicy.java	(working copy)
>@@ -56,9 +56,9 @@
> import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceDeleteHelper;
> 
> /**
>- * @generated
>+ * @generated NOT
>  */
>-public class Message2ItemSemanticEditPolicy extends UMLBaseItemSemanticEditPolicy {
>+public class Message2ItemSemanticEditPolicy extends AbstractMessageItemSemanticEditPolicy {
> 
> 	/**
> 	 * @generated
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message3ItemSemanticEditPolicy.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message3ItemSemanticEditPolicy.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message3ItemSemanticEditPolicy.java	(working copy)
>@@ -56,9 +56,9 @@
> import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceDeleteHelper;
> 
> /**
>- * @generated
>+ * @generated NOT
>  */
>-public class Message3ItemSemanticEditPolicy extends UMLBaseItemSemanticEditPolicy {
>+public class Message3ItemSemanticEditPolicy extends AbstractMessageItemSemanticEditPolicy {
> 
> 	/**
> 	 * @generated
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message4ItemSemanticEditPolicy.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message4ItemSemanticEditPolicy.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message4ItemSemanticEditPolicy.java	(working copy)
>@@ -57,9 +57,9 @@
> import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceDeleteHelper;
> 
> /**
>- * @generated
>+ * @generated NOT
>  */
>-public class Message4ItemSemanticEditPolicy extends UMLBaseItemSemanticEditPolicy {
>+public class Message4ItemSemanticEditPolicy extends AbstractMessageItemSemanticEditPolicy {
> 
> 	/**
> 	 * @generated
>Index: src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message6ItemSemanticEditPolicy.java
>===================================================================
>--- src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message6ItemSemanticEditPolicy.java	(revision 9619)
>+++ src/org/eclipse/papyrus/uml/diagram/sequence/edit/policies/Message6ItemSemanticEditPolicy.java	(working copy)
>@@ -56,9 +56,9 @@
> import org.eclipse.papyrus.uml.diagram.sequence.util.SequenceDeleteHelper;
> 
> /**
>- * @generated
>+ * @generated NOT
>  */
>-public class Message6ItemSemanticEditPolicy extends UMLBaseItemSemanticEditPolicy {
>+public class Message6ItemSemanticEditPolicy extends AbstractMessageItemSemanticEditPolicy {
> 
> 	/**
> 	 * @generated

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Attachments on bug 377501: 214914 | 220884 | 224162 | 224421 | 224672 | 224673