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/*******************************************************************************
* Copyright (c) 2009 Oracle. 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:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.utility.model.listener;
import org.eclipse.jpt.utility.model.event.ChangeEvent;
import org.eclipse.jpt.utility.model.event.CollectionAddEvent;
import org.eclipse.jpt.utility.model.event.CollectionChangeEvent;
import org.eclipse.jpt.utility.model.event.CollectionClearEvent;
import org.eclipse.jpt.utility.model.event.CollectionRemoveEvent;
import org.eclipse.jpt.utility.model.event.ListAddEvent;
import org.eclipse.jpt.utility.model.event.ListChangeEvent;
import org.eclipse.jpt.utility.model.event.ListClearEvent;
import org.eclipse.jpt.utility.model.event.ListMoveEvent;
import org.eclipse.jpt.utility.model.event.ListRemoveEvent;
import org.eclipse.jpt.utility.model.event.ListReplaceEvent;
import org.eclipse.jpt.utility.model.event.PropertyChangeEvent;
import org.eclipse.jpt.utility.model.event.StateChangeEvent;
import org.eclipse.jpt.utility.model.event.TreeAddEvent;
import org.eclipse.jpt.utility.model.event.TreeChangeEvent;
import org.eclipse.jpt.utility.model.event.TreeClearEvent;
import org.eclipse.jpt.utility.model.event.TreeRemoveEvent;
/**
* Convenience abstract implementation of {@link ChangeListener}.
* All change notifications are funneled through a single method.
* This class can be used by
* subclassing it and overriding either {@link #modelChanged(ChangeEvent)}
* (if access to the event is required) or {@link #modelChanged()} (if access
* to the event is not required).
* <p>
* Provisional API: This class is part of an interim API that is still
* under development and expected to change significantly before reaching
* stability. It is available at this early stage to solicit feedback from
* pioneering adopters on the understanding that any code that uses this API
* will almost certainly be broken (repeatedly) as the API evolves.
*/
public abstract class SimpleChangeListener
implements ChangeListener
{
public SimpleChangeListener() {
super();
}
public void stateChanged(StateChangeEvent event) {
this.modelChanged(event);
}
public void propertyChanged(PropertyChangeEvent event) {
this.modelChanged(event);
}
public void collectionChanged(CollectionChangeEvent event) {
this.modelChanged(event);
}
public void collectionCleared(CollectionClearEvent event) {
this.modelChanged(event);
}
public void itemsAdded(CollectionAddEvent event) {
this.modelChanged(event);
}
public void itemsRemoved(CollectionRemoveEvent event) {
this.modelChanged(event);
}
public void itemsAdded(ListAddEvent event) {
this.modelChanged(event);
}
public void itemsMoved(ListMoveEvent event) {
this.modelChanged(event);
}
public void itemsRemoved(ListRemoveEvent event) {
this.modelChanged(event);
}
public void itemsReplaced(ListReplaceEvent event) {
this.modelChanged(event);
}
public void listChanged(ListChangeEvent event) {
this.modelChanged(event);
}
public void listCleared(ListClearEvent event) {
this.modelChanged(event);
}
public void nodeAdded(TreeAddEvent event) {
this.modelChanged(event);
}
public void nodeRemoved(TreeRemoveEvent event) {
this.modelChanged(event);
}
public void treeChanged(TreeChangeEvent event) {
this.modelChanged(event);
}
public void treeCleared(TreeClearEvent event) {
this.modelChanged(event);
}
/**
* The model has notified the listener of the change described by the
* specified change event. By default the listener executes {@link #modelChanged()}.
*/
protected void modelChanged(@SuppressWarnings("unused") ChangeEvent event) {
this.modelChanged();
}
/**
* The model has notified the listener of a change.
* By default the listener throws an exception.
*/
protected void modelChanged() {
throw new RuntimeException("This method was not overridden."); //$NON-NLS-1$
}
}
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