Mercurial > projects > dwt2
view org.eclipse.core.databinding/src/org/eclipse/core/internal/databinding/observable/UnmodifiableObservableValue.d @ 78:0a55d2d5a946
Added file for databinding
author | Frank Benoit <benoit@tionex.de> |
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date | Tue, 14 Apr 2009 11:35:29 +0200 |
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/******************************************************************************* * Copyright (c) 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 219909) ******************************************************************************/ module org.eclipse.core.internal.databinding.observable.UnmodifiableObservableValue; import java.lang.all; import org.eclipse.core.databinding.observable.IStaleListener; import org.eclipse.core.databinding.observable.StaleEvent; import org.eclipse.core.databinding.observable.value.AbstractObservableValue; import org.eclipse.core.databinding.observable.value.IObservableValue; import org.eclipse.core.databinding.observable.value.IValueChangeListener; import org.eclipse.core.databinding.observable.value.ValueChangeEvent; /** * An unmodifiable wrapper class for IObservableValue instances. * @since 1.1 */ public class UnmodifiableObservableValue : AbstractObservableValue { private IObservableValue wrappedValue; /** * Constructs an UnmodifiableObservableValue which wraps the given * observable value * * @param wrappedValue * the observable value to wrap in an unmodifiable instance. */ public this(IObservableValue wrappedValue) { super(wrappedValue.getRealm()); this.wrappedValue = wrappedValue; wrappedValue.addValueChangeListener(new class() IValueChangeListener { public void handleValueChange(ValueChangeEvent event) { fireValueChange(event.diff); } }); wrappedValue.addStaleListener(new class() IStaleListener { public void handleStale(StaleEvent staleEvent) { fireStale(); } }); } protected Object doGetValue() { return wrappedValue.getValue(); } public Object getValueType() { return wrappedValue.getValueType(); } }