EJB TimerService线程优先级

Question

我使用OpenEJB timerService.createCalendarTimer（）来安排任务，类似于this example

我的问题是，随着时间的推移，计时器的准确性会恶化，并且会检查女儿的情况。不是每一秒都被召唤。我需要确保按计划调用该方法。

如何实现这一目标？

我想到的一个选项是为相应的线程设置高优先级。可以帮忙吗？

如何设置EJB TimerService线程优先级？

@Singleton
@Lock(LockType.READ) // allows timers to execute in parallel
@Startup
public class FarmerBrown {


    @Resource
    private TimerService timerService;

    @PostConstruct
    private void construct() {
        final TimerConfig plantTheCorn = new TimerConfig("plantTheCorn", false);
        timerService.createCalendarTimer(new ScheduleExpression().month(5).dayOfMonth("20-Last").minute(0).hour(8), plantTheCorn);
        timerService.createCalendarTimer(new ScheduleExpression().month(6).dayOfMonth("1-10").minute(0).hour(8), plantTheCorn);

        final TimerConfig harvestTheCorn = new TimerConfig("harvestTheCorn", false);
        timerService.createCalendarTimer(new ScheduleExpression().month(9).dayOfMonth("20-Last").minute(0).hour(8), harvestTheCorn);
        timerService.createCalendarTimer(new ScheduleExpression().month(10).dayOfMonth("1-10").minute(0).hour(8), harvestTheCorn);

        final TimerConfig checkOnTheDaughters = new TimerConfig("checkOnTheDaughters", false);
        timerService.createCalendarTimer(new ScheduleExpression().second("*").minute("*").hour("*"), checkOnTheDaughters);
    }

    @Timeout
    public void timeout(Timer timer) {
        if ("plantTheCorn".equals(timer.getInfo())) {
            plantTheCorn();
        } else if ("harvestTheCorn".equals(timer.getInfo())) {
            harvestTheCorn();
        } else if ("checkOnTheDaughters".equals(timer.getInfo())) {
            checkOnTheDaughters();
        }
    }

    private void plantTheCorn() {
        // Dig out the planter!!!
    }

    private void harvestTheCorn() {
        // Dig out the combine!!!
    }

    private void checkOnTheDaughters() {
        checks.incrementAndGet();
    }

    public int getChecks() {
        return checks.get();
    }
}