User: simone
Date: 00/10/16 16:26:52
Added: src/main/org/jboss/ejb/plugins
EnterpriseContextCachePolicy.java
Log:
Helper class that gives log and scheduler to EnterpriseContext caches
Revision Changes Path
1.1
jboss/src/main/org/jboss/ejb/plugins/EnterpriseContextCachePolicy.java
Index: EnterpriseContextCachePolicy.java
===================================================================
/*
* jBoss, the OpenSource EJB server
*
* Distributable under GPL license.
* See terms of license at gnu.org.
*/
package org.jboss.ejb.plugins;
import org.jboss.logging.Log;
import org.jboss.util.TimerQueue;
import org.jboss.util.TimerTask;
import org.jboss.util.CachePolicy;
/**
* Interface that specifies a policy for caches. <p>
* Implementation classes can implement a LRU policy, a random one,
* a MRU one, or any other suitable policy.
*
* @see EnterpriseInstanceCache
* @author Simone Bordet ([EMAIL PROTECTED])
* @version $Revision: 1.1 $
*/
public interface EnterpriseContextCachePolicy extends CachePolicy
{
// Constants -----------------------------------------------------
// Static --------------------------------------------------------
public static Log log = new Log("Bean Cache");
public static Scheduler scheduler = new Scheduler();
// Public --------------------------------------------------------
/**
* Final class that hold a single instance of a {@link TimerQueue} object
* for all the CachePolicy instances, allowing the cache policies to
* register {@link TimerTask}s that will be executed in a single background
* thread. <br>
* Usage:
* <pre>
* TimerTask task = new TimerTask()
* {
* public void execute() throws Exception
* {
* doSomething();
* }
* };
* scheduler.schedule(task);
* </pre>
*
* @see TimerQueue
*/
public static final class Scheduler
{
private static final TimerQueue m_scheduler = new TimerQueue();
static
{
m_scheduler.start();
log.log("Cache policy scheduler started");
}
public final void schedule(TimerTask t)
{
schedule(t, 0);
}
public final void schedule(TimerTask t, long delay)
{
m_scheduler.schedule(t, delay);
}
}
}
