package dk.thoerup.schedulesamples;

import java.util.Calendar;
import java.util.Date;

import javax.annotation.Resource;
import javax.ejb.ScheduleExpression;
import javax.ejb.SessionContext;
import javax.ejb.Stateless;
import javax.ejb.TimedObject;
import javax.ejb.Timer;
import javax.ejb.TimerService;

/* GFv3: before using a timed bean make sure the ejb timer service is correctly configured with a datasource and the timer table is created
 * cd /inst/glassfishv3/glassfish/domains/domain1/lib/databases/ejbtimer 
 * /usr/lib/jvm/java-6-sun/db/bin/ij
 * connect 'jdbc:derby:.';
 * paste content from /home/torben/inst/glassfishv3/glassfish/lib/install/databases/ejbtimer_derby.sql 
 * 
 * */ 

@Stateless
public class TimedEjb implements TimedObject {

	@Resource
	private SessionContext sessionCtx;

	
	public void startTimer() {
		TimerService timerService = sessionCtx.getTimerService();
		
		Calendar now = Calendar.getInstance();
		//Timer timer = timerService.createTimer( (5 * 1000), null); //singleshot timer
		//timerService.createTimer(10*1000, 5000, null); //repeating timer
		
		// otherwise use schedule expression to create more complex schedules
		// in this case fire once every minute when the seconds is == 10
		ScheduleExpression se = new ScheduleExpression().second(10).minute("*").hour("*");
		
		System.out.println(se.toString());
		timerService.createCalendarTimer( se );  
	}
	
	@Override
	public void ejbTimeout(Timer timer) {
		System.out.print("timeout ....");
	}

}