CODEWITHSUNDEEP
javatimerejb
AFP_555
AFP_555

Reputation: 2598

How to change hour of day to execute EJB TimeService

I want a process to run everyday at an specific hour of the day everyday. I want to use the Timerservice of EJB's but I can only find how to set an interval, not an specific hour of the day:

@Resource
    protected TimerService timerService;

    @Timeout
public void timeoutHandler(Timer timer) {
    String name = timer.getInfo().toString();
    System.out.println("Timer name=" + name);
}

public void startOrModifyTimer(long initialExpiration, long interval, String name){      
    //Cancel previous timer
    Collection<Timer> timers = timerService.getAllTimers();
    for (Timer timer: timers) {
        if (timer.getInfo().equals(name)) {
            timer.cancel();
        }
    }

    TimerConfig config = new TimerConfig();
    config.setInfo(name);
    config.setPersistent(false);
    timerService.createIntervalTimer(initialExpiration, interval, config);
}

I want to change the timer from "Every day at 2am" to "Everyday at 3am" on runtime.

Upvotes: 0

Views: 188

Answers (1)

Will Hartung
Will Hartung

Reputation: 118593

You want:

createCalendarTimer(ScheduleExpression schedule)

The ScheduleExpression will do what you want.

Upvotes: 1

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