/*
* Copyright 2002-2007 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.scheduling.commonj;
import commonj.work.Work;
import org.springframework.scheduling.SchedulingAwareRunnable;
import org.springframework.util.Assert;
/**
* Simple Work adapter that delegates to a given Runnable.
*
* @author Juergen Hoeller
* @since 2.0
* @see commonj.work.Work
* @see java.lang.Runnable
*/
public class DelegatingWork implements Work {
private final Runnable delegate;
/**
* Create a new DelegatingWork.
* @param delegate the Runnable implementation to delegate to
* (may be a SchedulingAwareRunnable for extended support)
* @see org.springframework.scheduling.SchedulingAwareRunnable
* @see #isDaemon()
*/
public DelegatingWork(Runnable delegate) {
Assert.notNull(delegate, "Delegate must not be null");
this.delegate = delegate;
}
/**
* Return the wrapped Runnable implementation.
*/
public final Runnable getDelegate() {
return this.delegate;
}
/**
* Delegates execution to the underlying Runnable.
*/
public void run() {
this.delegate.run();
}
/**
* This implementation delegates to
* {@link org.springframework.scheduling.SchedulingAwareRunnable#isLongLived()},
* if available.
*/
public boolean isDaemon() {
return (this.delegate instanceof SchedulingAwareRunnable &&
((SchedulingAwareRunnable) this.delegate).isLongLived());
}
/**
* This implementation is empty, since we expect the Runnable
* to terminate based on some specific shutdown signal.
*/
public void release() {
}
}
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