| /******************************************************************************* |
| * Copyright (c) 2006, 2008 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 |
| * Brad Reynolds - bug 164653 |
| * Matthew Hall - bug 118516 |
| *******************************************************************************/ |
| |
| package org.eclipse.core.databinding.observable; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.core.runtime.AssertionFailedException; |
| |
| /** |
| * @since 1.0 |
| */ |
| public abstract class AbstractObservable extends ChangeManager implements IObservable { |
| |
| /** |
| * @param realm |
| */ |
| public AbstractObservable(Realm realm) { |
| super(realm); |
| } |
| |
| public synchronized void addChangeListener(IChangeListener listener) { |
| addListener(ChangeEvent.TYPE, listener); |
| } |
| |
| public synchronized void removeChangeListener(IChangeListener listener) { |
| removeListener(ChangeEvent.TYPE, listener); |
| } |
| |
| public synchronized void addStaleListener(IStaleListener listener) { |
| addListener(StaleEvent.TYPE, listener); |
| } |
| |
| public synchronized void removeStaleListener(IStaleListener listener) { |
| removeListener(StaleEvent.TYPE, listener); |
| } |
| |
| protected void fireChange() { |
| checkRealm(); |
| fireEvent(new ChangeEvent(this)); |
| } |
| |
| protected void fireStale() { |
| checkRealm(); |
| fireEvent(new StaleEvent(this)); |
| } |
| |
| /** |
| * |
| */ |
| public synchronized void dispose() { |
| super.dispose(); |
| } |
| |
| /** |
| * Asserts that the realm is the current realm. |
| * |
| * @see Realm#isCurrent() |
| * @throws AssertionFailedException if the realm is not the current realm |
| */ |
| protected void checkRealm() { |
| Assert.isTrue(getRealm().isCurrent(), |
| "This operation must be run within the observable's realm"); //$NON-NLS-1$ |
| } |
| } |