Trigger a Cron Job only once via Java code

[#1]

Hi,

I'm trying to schedule a cronjob via Java code. Our case is that when I can't st scheduled cronjob that I should postpone it for 30 minutes. I thought the following code should work, but it doesn't and I can't find any documentation about it.

Does someone of you have an idea to create a trigger that will only run once on a specific time?

 public void createTrigger(final CronJobModel cronJobModel) {    
     long t= new Date().getTime();
     Date afterAddingThirtyMins=new Date(t + (1800000));
     
     final TriggerModel triggerModel = modelService.create(TriggerModel.class);
     triggerModel.setActive(Boolean.TRUE);
     triggerModel.setActivationTime(afterAddingThirtyMins);
     triggerModel.setRelative(true);
     triggerModel.setCronJob(cronJobModel);
     modelService.save(triggerModel);
 }

I thought the code above should work, but the interval is now scheduled as daily while it should only run once.

Available method in TriggerModel:

• setActivationTime(final Date value)

• setActive(final Boolean value)

• setCronExpression(final String value)

• setCronJob(final CronJobModel value)

• setDateRange(final StandardDateRange value)

• setDay(final Integer value)

• setDaysOfWeek(final List value)

• setHour(final Integer value)

• setJob(final JobModel value)

• setMaxAcceptableDelay(final Integer value)

• setMinute(final Integer value)

• setMonth(final Integer value)

• setRelative(final Boolean value)

• setSecond(final Integer value)

• setWeekInterval(final Integer value)

• setYear(final Integer value)

[Former Member]

Hi,

You can also use cronexpression to trigger a job once:

 triggerModel.setCronExpression("0 30 12 29 06 ? 2016");

to set a trigger on June 29th 2016 at 12:30 PM.