memoryreporter.java

精通Jboss——Ejb和Web Services开发精解的随书源代码

/*
 * Created on 2003-7-16
 *
 */
package com.liuyang.jboss.message.mdb.examples;

import javax.ejb.EJBException;
import javax.ejb.MessageDrivenBean;
import javax.ejb.MessageDrivenContext;
import javax.jms.Message;
import javax.jms.MessageListener;

/**
 * @author liuyang
 *	
 * @ejb.bean
 *     name="MemoryReporter"
 *     acknowledge-mode="Auto-acknowledge"
 *     destination-type="javax.jms.Topic"
 *     subscription-durability="NonDurable"
 *     transaction-type="Container"
 * 
 *
 * @jboss.destination-jndi-name
 *     name="topic/MemoryReporter"		 
 * 
 */
public class MemoryReporter implements MessageDrivenBean,MessageListener {

	public void ejbRemove(){

	}
	
	/**
	 * 
	 * @ejb.create-method
	 * 
	 */
	public void ejbCreate(){

	}	
	private MessageDrivenContext mdcontext;
	public void setMessageDrivenContext(MessageDrivenContext context)
		throws EJBException {
		mdcontext = context;
	}
	public void onMessage(Message msg) {
		System.out.println("内存总量:"+Runtime.getRuntime().totalMemory());
		System.out.println("剩余内存:"+Runtime.getRuntime().freeMemory());
	}

}