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What is Timer Services in EJB Framework |
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The TimerService interface in javax.ejb package provides facility to access the container-provided Timer Service. The EJB Timer Service works with entity beans, stateless session beans, and message-driven beans to for timer callback events at a particular / after a specified elapsed time/after a specified interval.
This example Code creates a timer:
TimerService timerService = context.getTimerService();
Timer timer = timerService.createTimer(2200,"timer creation ");
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When a timer expires then container calls the ejbTimeout method of the corresponding bean implementation class. The ejbTimeout method contains the business logic that handles the timed event.
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