Mercurial > projects > dwt2
view org.eclipse.core.databinding.observable/src/org/eclipse/core/databinding/observable/StaleEvent.d @ 95:6208d4f6a277
Added trees for databinding.beans and observable
author | Frank Benoit <benoit@tionex.de> |
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date | Tue, 21 Apr 2009 10:55:51 +0200 |
parents | |
children | b74ac5dfcc06 |
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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 *******************************************************************************/ package org.eclipse.core.databinding.observable; /** * Generic event denoting that the state of an {@link IObservable} object is * about to change. Note that this event is only fired when an observable * becomes stale, not when it becomes unstale; an observable that becomes * unstale should always fire a change event. Staleness can be used (for * example) to notify listeners when an observable has started a background * thread for updating its state. Clients can safely ignore staleness. * * @see IObservable#isStale() * * @since 1.0 * */ public class StaleEvent : ObservableEvent { /** * Creates a new stale event. * * @param source * the source observable */ public this(IObservable source) { super(source); } /** * */ private static final long serialVersionUID = 3491012225431471077L; static final Object TYPE = new Object(); protected void dispatch(IObservablesListener listener) { (cast(IStaleListener) listener).handleStale(this); } protected Object getListenerType() { return TYPE; } }