/**
* EasyBeans
* Copyright (C) 2007 Bull S.A.S.
* Contact: easybeans@ow2.org
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
* --------------------------------------------------------------------------
* $Id: MessageDrivenBean.java 5369 2010-02-24 14:58:19Z benoitf $
* --------------------------------------------------------------------------
*/
package org.ow2.easybeans.examples.timerservice;
import javax.annotation.Resource;
import javax.ejb.ActivationConfigProperty;
import javax.ejb.MessageDriven;
import javax.ejb.MessageDrivenContext;
import javax.ejb.Timeout;
import javax.ejb.Timer;
import javax.ejb.TimerService;
import javax.jms.Message;
import javax.jms.MessageListener;
/**
* Example of Message Driven Bean.<br />
* This is an JMS MDB, implementing the MessageListener interface.
* @author Florent Benoit
*/
@MessageDriven(activationConfig = {
@ActivationConfigProperty(propertyName = "destination", propertyValue = "SampleTimerQueue"),
@ActivationConfigProperty(propertyName = "destinationType", propertyValue = "javax.jms.Queue")
}
)
public class MessageDrivenBean implements MessageListener {
/**
* Time before firing a new Timer.
*/
private static final long FIRING_TIME = 3000;
/**
* MDB context used to access to the timer service. (timer service can also be injected).
*/
@Resource
private MessageDrivenContext messageDrivenContext = null;
/**
* Passes a message to the listener.
* @param message - the message passed to the listener
*/
public void onMessage(final Message message) {
// Get the timer service
TimerService timerService = messageDrivenContext.getTimerService();
// Calling the timer service
timerService.createTimer(FIRING_TIME, "Timer started by the onMessage() method");
}
/**
* Timeout method that will be called by the timer service when a timer is expiring.
* @param timer the timer object containing some data.
*/
@Timeout
public void theMDBtimerMethod(final Timer timer) {
System.out.println(" MDB -> Timer method called by the Timer Service.");
System.out.println(" MDB -> Timer received = '" + timer + "'.");
System.out.println(" MDB -> Info object inside the timer object is '" + timer.getInfo() + "'.");
}
}