| /******************************************************************************* |
| * Copyright (c) 2007, 2008 Matthew Hall 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: |
| * Matthew Hall - initial API and implementation (bug 208332) |
| * Brad Reynolds - initial API and implementation |
| * (through UnmodifiableObservableList.java) |
| * Matthew Hall - bug 237718 |
| ******************************************************************************/ |
| |
| package org.eclipse.core.internal.databinding.observable; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.Iterator; |
| import java.util.Set; |
| |
| import org.eclipse.core.databinding.observable.set.DecoratingObservableSet; |
| import org.eclipse.core.databinding.observable.set.IObservableSet; |
| |
| /** |
| * ObservableList implementation that prevents modification by consumers. Events |
| * in the originating wrapped list are propagated and thrown from this instance |
| * when appropriate. All mutators throw an UnsupportedOperationException. |
| * |
| * @since 1.1 |
| */ |
| public class UnmodifiableObservableSet extends DecoratingObservableSet { |
| private Set unmodifiableSet; |
| |
| /** |
| * @param decorated |
| */ |
| public UnmodifiableObservableSet(IObservableSet decorated) { |
| super(decorated, false); |
| |
| this.unmodifiableSet = Collections.unmodifiableSet(decorated); |
| } |
| |
| public boolean add(Object o) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public boolean addAll(Collection c) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public void clear() { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public Iterator iterator() { |
| getterCalled(); |
| return unmodifiableSet.iterator(); |
| } |
| |
| public boolean remove(Object o) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public boolean removeAll(Collection c) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public boolean retainAll(Collection c) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| public synchronized void dispose() { |
| unmodifiableSet = null; |
| super.dispose(); |
| } |
| } |