org.picocontainer.lifecycle.AbstractMonitoringLifecycleStrategy Maven / Gradle / Ivy
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* 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. *
*****************************************************************************/
package org.picocontainer.lifecycle;
import java.io.Serializable;
import org.picocontainer.ComponentAdapter;
import org.picocontainer.ComponentMonitor;
import org.picocontainer.ComponentMonitorStrategy;
import org.picocontainer.LifecycleStrategy;
/**
* Abstract base class for lifecycle strategy implementation supporting a {@link ComponentMonitor}.
*
* @author Jörg Schaible
*/
public abstract class AbstractMonitoringLifecycleStrategy implements LifecycleStrategy, ComponentMonitorStrategy, Serializable {
/**
* Component monitor that receives lifecycle state.
*/
private ComponentMonitor componentMonitor;
/**
* Construct a AbstractMonitoringLifecycleStrategy.
*
* @param monitor the componentMonitor to use
* @throws NullPointerException if the monitor is null
*/
public AbstractMonitoringLifecycleStrategy(final ComponentMonitor monitor) {
changeMonitor(monitor);
}
/**
* Swaps the current monitor with a replacement.
* @param monitor The new monitor.
* @throws NullPointerException if the passed in monitor is null.
*/
public void changeMonitor(final ComponentMonitor monitor) {
if (monitor == null) {
throw new NullPointerException("Monitor is null");
}
this.componentMonitor = monitor;
}
public ComponentMonitor currentMonitor() {
return componentMonitor;
}
public boolean isLazy(ComponentAdapter adapter) {
return false;
}
}