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/*******************************************************************************
* Copyright (c) 2001, 2004 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
* Jens Lukowski/Innoopract - initial renaming/restructuring
*
*******************************************************************************/
package org.eclipse.wst.sse.internal.contentproperties;
import java.util.Hashtable;
import java.util.Iterator;
import java.util.Map;
import java.util.Set;
public abstract class AbstractSubject implements INotify, ISubject {
private static Map listenerList = new Hashtable();
public synchronized void addListener(IContentSettingsListener listener) {
listenerList.put(listener, listener);
}
/*
* @see IContentSettingsEventSubject#notifyContentSettingsListeners(Object)
*/
public synchronized void notifyListeners(org.eclipse.core.resources.IResource changedResource) {
Set keys = listenerList.keySet();
Iterator iter = keys.iterator();
while (iter.hasNext()) {
IContentSettingsListener csl = (IContentSettingsListener) iter.next();
csl.contentSettingsChanged(changedResource);
}
}
public synchronized void removeListener(IContentSettingsListener listener) {
listenerList.remove(listener);
}
}
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