Mercurial > projects > dwt2
view org.eclipse.core.databinding.observable/src/org/eclipse/core/databinding/observable/value/ValueChangingEvent.d @ 96:b74ac5dfcc06
package to module and java.lang.all import
author | Frank Benoit <benoit@tionex.de> |
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date | Tue, 21 Apr 2009 11:03:33 +0200 |
parents | 6208d4f6a277 |
children | c86eb8b3098e |
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/******************************************************************************* * 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 ******************************************************************************/ module org.eclipse.core.databinding.observable.value.ValueChangingEvent; import java.lang.all; import org.eclipse.core.databinding.observable.IObservablesListener; import org.eclipse.core.databinding.observable.ObservableEvent; /** * Value changing event describing a pending change of an * {@link IObservableValue} object's current value. Listeners can veto the * pending change by setting {@link #veto} to <code>true</code>. * * @since 1.0 * */ public class ValueChangingEvent : ObservableEvent { /** * */ private static final long serialVersionUID = 2305345286999701156L; static final Object TYPE = new Object(); /** * Description of the change to the source observable value. Listeners must * not change this field. */ public ValueDiff diff; /** * Flag for vetoing this change. Default value is <code>false</code>, can * be set to <code>true</code> by listeners to veto this change. */ public bool veto = false; /** * Creates a new value changing event. * * @param source * the source observable value * @param diff * the value change */ public this(IObservableValue source, ValueDiff diff) { super(source); this.diff = diff; } /** * @return the observable value from which this event originated */ public IObservableValue getObservableValue() { return cast(IObservableValue) source; } protected void dispatch(IObservablesListener listener) { (cast(IValueChangingListener) listener).handleValueChanging(this); } protected Object getListenerType() { return TYPE; } }