| /******************************************************************************* |
| * Copyright (c) 2006, 2007 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 |
| *******************************************************************************/ |
| |
| package org.eclipse.core.databinding.observable; |
| |
| /** |
| * @since 1.0 |
| * |
| */ |
| public abstract class ChangeSupport extends ChangeManager { |
| |
| /** |
| * @param realm |
| */ |
| public ChangeSupport(Realm realm) { |
| super(realm); |
| } |
| |
| public void addListener(Object listenerType, |
| IObservablesListener listener) { |
| super.addListener(listenerType, listener); |
| } |
| |
| public void removeListener(Object listenerType, |
| IObservablesListener listener) { |
| super.removeListener(listenerType, listener); |
| } |
| |
| public void fireEvent(ObservableEvent event) { |
| super.fireEvent(event); |
| } |
| |
| /** |
| * |
| */ |
| protected abstract void firstListenerAdded(); |
| |
| /** |
| * |
| */ |
| protected abstract void lastListenerRemoved(); |
| |
| /** |
| * @param listener |
| */ |
| public void addChangeListener(IChangeListener listener) { |
| addListener(ChangeEvent.TYPE, listener); |
| } |
| |
| /** |
| * @param listener |
| */ |
| public void removeChangeListener(IChangeListener listener) { |
| removeListener(ChangeEvent.TYPE, listener); |
| } |
| |
| /** |
| * @param listener |
| */ |
| public void addStaleListener(IStaleListener listener) { |
| addListener(StaleEvent.TYPE, listener); |
| } |
| |
| /** |
| * @param listener |
| */ |
| public void removeStaleListener(IStaleListener listener) { |
| removeListener(StaleEvent.TYPE, listener); |
| } |
| |
| } |