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import javax.ejb.TimerService; |
import javax.ejb.TimerService; |
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/* GFv3: before using a timed bean make sure the ejb timer service is correctly configured with a datasource and the timer table is created |
/* GFv3: before using a timed bean make sure the ejb timer service is correctly configured with a datasource and the timer table is created |
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* cd /inst/glassfishv3/glassfish/domains/domain1/lib/databases/ejbtimer |
* cd <glassfishv3>/glassfish/domains/domain1/lib/databases/ejbtimer |
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* /usr/lib/jvm/java-6-sun/db/bin/ij |
* /usr/lib/jvm/java-6-sun/db/bin/ij |
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* connect 'jdbc:derby:.'; |
* connect 'jdbc:derby:.'; |
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* paste content from /home/torben/inst/glassfishv3/glassfish/lib/install/databases/ejbtimer_derby.sql |
* paste content from <glassfishv3>/glassfish/lib/install/databases/ejbtimer_derby.sql |
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* |
* and content from <glassfishv3>/glassfish/lib/install/databases/upgrade/ejbtimer_upgrade_derby.sql (need the applicationID column) |
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* after this make sure that all the files are owned by the user your GFv3 instance is running as |
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* */ |
* */ |
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//@Stateless |
@Stateless |
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public class TimedEjb implements TimedObject { |
public class TimedEjb implements TimedObject { |
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class TimerInfo implements Serializable { |
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public int count; |
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} |
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@Resource |
@Resource |
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private SessionContext sessionCtx; |
private SessionContext sessionCtx; |
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int count; |
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public void startTimer() { |
public void startTimer() { |
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TimerService timerService = sessionCtx.getTimerService(); |
TimerService timerService = sessionCtx.getTimerService(); |
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TimerInfo info = new TimerInfo(); //the info object is not necessary - but can be used to store data with the timer |
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//Timer timer = timerService.createTimer( (5 * 1000), null); //singleshot timer |
//Timer timer = timerService.createTimer( (5 * 1000), info); //singleshot timer |
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timerService.createTimer(10*1000, 5000, null); //repeating timer |
timerService.createTimer(10*1000, 5000, info ); //repeating timer |
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// otherwise use schedule expression to create more complex schedules |
// otherwise use schedule expression to create more complex schedules |
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// in this case fire once every minute when the seconds is == 10 |
// in this case fire once every minute when the seconds is == 10 |
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//System.out.println(se.toString()); |
//System.out.println(se.toString()); |
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//timerService.createCalendarTimer( se ); |
//timerService.createCalendarTimer( se ); |
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count = 0; |
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} |
} |
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@Override |
@Override |
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public void ejbTimeout(Timer timer) { |
public void ejbTimeout(Timer timer) { |
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TimerInfo info = (TimerInfo) timer.getInfo(); |
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count++; |
info.count++; |
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System.out.print("timeout .... " + count); |
System.out.print("timeout .... " + info.count); |
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if (count >= 10) { |
if (info.count >= 10) { |
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timer.cancel(); |
timer.cancel(); |
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} |
} |
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} |
} |