org.picocontainer.behaviors.Locked Maven / Gradle / Ivy
/*****************************************************************************
* Copyright (C) PicoContainer Organization. All rights reserved. *
* ------------------------------------------------------------------------- *
* The software in this package is published under the terms of the BSD *
* style license a copy of which has been included with this distribution in *
* the LICENSE.txt file. *
* *
* Original code by *
*****************************************************************************/
package org.picocontainer.behaviors;
import org.picocontainer.ComponentAdapter;
import org.picocontainer.PicoContainer;
import org.picocontainer.PicoCompositionException;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;
import java.lang.reflect.Type;
/**
* @author Paul Hammant
*/
@SuppressWarnings("serial")
public class Locked extends AbstractBehavior {
/**
* Reentrant lock.
*/
private Lock lock = new ReentrantLock();
public Locked(ComponentAdapter delegate) {
super(delegate);
}
public T getComponentInstance(PicoContainer container, Type into) throws PicoCompositionException {
T retVal = null;
lock.lock();
try {
retVal = super.getComponentInstance(container, into);
}
finally {
lock.unlock();
}
return retVal;
}
public String getDescriptor() {
return "Locked";
}
}