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/******************************************************************************
* Copyright (c) 2010, 2013 EclipseSource 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:
* EclipseSource - initial API and implementation
* Gunnar Wagenknecht - added support for generics
******************************************************************************/
package org.eclipse.equinox.concurrent.future;
import org.eclipse.core.runtime.Assert;
import org.eclipse.core.runtime.IProgressMonitor;
/**
* <p>
* Executes {@link IProgressRunnable} instances immediately.
* </p>
* <p>
* <b>NOTE</b>: {@link #execute(IProgressRunnable, IProgressMonitor)} should be
* used with some degree of caution with this implementation, as unlike other
* implementations the {@link IProgressRunnable#run(IProgressMonitor)} method
* will be called by the thread that calls
* {@link #execute(IProgressRunnable, IProgressMonitor)}, meaning that calling
* #execute(IProgressRunnable, IProgressMonitor) may block the calling thread
* indefinitely.
* </p>
*
* @see ThreadsExecutor
* @since 1.1
*/
public class ImmediateExecutor extends AbstractExecutor implements IExecutor,
IRunnableExecutor {
@SuppressWarnings("rawtypes")
protected AbstractFuture<?> createFuture(IProgressMonitor monitor) {
return new SingleOperationListenableFuture(monitor);
}
@SuppressWarnings("unchecked")
public <ResultType> IFuture<ResultType> execute(
IProgressRunnable<? extends ResultType> runnable,
IProgressMonitor monitor) {
Assert.isNotNull(runnable);
@SuppressWarnings("rawtypes")
AbstractFuture sof = createFuture(monitor);
// Actually run the runnable immediately. See NOTE above
sof.runWithProgress(runnable);
return sof;
}
}
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