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/*******************************************************************************
* Copyright (c) 2007, 2009 Wind River Systems 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.dsf.ui.concurrent;
import java.util.concurrent.Executor;
import org.eclipse.cdt.dsf.concurrent.CountingRequestMonitor;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IViewerUpdate;
/**
* Counting multi data request monitor that takes a <code>IViewerUpdate</code>
* as a parent. If the IViewerUpdate is canceled, this request monitor becomes
* canceled as well.
*
* @see IViewerUpdate.
*
* @since 1.0
*/
public class ViewerCountingRequestMonitor extends CountingRequestMonitor {
private final IViewerUpdate fUpdate;
public ViewerCountingRequestMonitor(Executor executor, IViewerUpdate update) {
super(executor, null);
fUpdate = update;
}
@Override
public synchronized boolean isCanceled() {
// isCanceled() is called implicitly by the super-constructor before fUpdate
// is initialized. The fUpdate != null is here to protect against an NPE
// from that.
return (fUpdate != null && fUpdate.isCanceled()) || super.isCanceled();
}
@Override
protected void handleSuccess() {
fUpdate.done();
}
@Override
protected void handleErrorOrWarning() {
fUpdate.setStatus(getStatus());
fUpdate.done();
}
@Override
protected void handleCancel() {
fUpdate.setStatus(getStatus());
fUpdate.done();
}
}
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