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*******************************************************************************/ |
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*******************************************************************************/ |
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package org.eclipse.core.runtime.preferences; |
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package org.eclipse.core.runtime.preferences; |
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import java.util.HashSet; |
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/** |
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/** |
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* Class which represents and preference filter entry to be used during preference |
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* Class which represents and preference filter entry to be used during preference |
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* import/export (for example). |
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* import/export (for example). |
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public final class PreferenceFilterEntry { |
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public final class PreferenceFilterEntry { |
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private String key; |
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private String key; |
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private HashSet matches; |
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boolean isPrefix; |
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/** |
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/** |
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* Constructor for the class. Create a new preference filter entry with the given |
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* Constructor for the class. Create a new preference filter entry with the given |
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if (key == null || key.length() == 0) |
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if (key == null || key.length() == 0) |
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throw new IllegalArgumentException(); |
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throw new IllegalArgumentException(); |
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this.key = key; |
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this.key = key; |
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this.isPrefix = false; |
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} |
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/** |
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* Constructor for the class. Create a new preference filter entry with the given |
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* key and value of regexp flag. The key must <em>not</em> be <code>null</code> or empty. |
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* |
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* @param key the name of the preference key |
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* @param regexp flag shows how name is used: |
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* "true" - as regular expression, "false" - exactly |
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*/ |
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public PreferenceFilterEntry(String key, boolean isPrefix) { |
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super(); |
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if (key == null || key.length() == 0) |
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throw new IllegalArgumentException(); |
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this.key = key; |
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this.isPrefix = isPrefix; |
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} |
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} |
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/** |
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/** |
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public String getKey() { |
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public String getKey() { |
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return key; |
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return key; |
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} |
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} |
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/** |
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* Return regular expression flag. |
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* |
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* @return the regular expression flag |
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*/ |
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public boolean isPrefix() { |
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return isPrefix; |
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} |
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/** |
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* Adding into collection of preferences names, matches the regular expression, |
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* which is contained in the <code>key</code>. |
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* |
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* @param name the name of the preference, matches the regular expression, contained in the key |
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*/ |
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public void addMatch(String name) { |
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if (!isPrefix) |
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return; |
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if (matches == null) |
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matches = new HashSet(); |
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matches.add(name); |
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} |
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/** |
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* Return the array of preferences' names, matches the regular expression, contained in the key |
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* |
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* @return the array of the preferencs' names, matches the regular expression, contained in the key |
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*/ |
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public Object[] getMatches() { |
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if (!isPrefix || matches == null) |
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return null; |
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return matches.toArray(); |
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} |
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} |
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} |
