| /******************************************************************************* |
| * 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.common.utility.model.listener; |
| |
| import org.eclipse.jpt.common.utility.model.event.ChangeEvent; |
| import org.eclipse.jpt.common.utility.model.event.CollectionAddEvent; |
| import org.eclipse.jpt.common.utility.model.event.CollectionChangeEvent; |
| import org.eclipse.jpt.common.utility.model.event.CollectionClearEvent; |
| import org.eclipse.jpt.common.utility.model.event.CollectionRemoveEvent; |
| import org.eclipse.jpt.common.utility.model.event.ListAddEvent; |
| import org.eclipse.jpt.common.utility.model.event.ListChangeEvent; |
| import org.eclipse.jpt.common.utility.model.event.ListClearEvent; |
| import org.eclipse.jpt.common.utility.model.event.ListMoveEvent; |
| import org.eclipse.jpt.common.utility.model.event.ListRemoveEvent; |
| import org.eclipse.jpt.common.utility.model.event.ListReplaceEvent; |
| import org.eclipse.jpt.common.utility.model.event.PropertyChangeEvent; |
| import org.eclipse.jpt.common.utility.model.event.StateChangeEvent; |
| import org.eclipse.jpt.common.utility.model.event.TreeAddEvent; |
| import org.eclipse.jpt.common.utility.model.event.TreeChangeEvent; |
| import org.eclipse.jpt.common.utility.model.event.TreeClearEvent; |
| import org.eclipse.jpt.common.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."); //$NON-NLS-1$ |
| } |
| |
| } |