Postponing/Hastening Boundary Timer Events

Flowable Engine
1

Hi,

We have a use case where we would like to postpone/hasten all the boundary timer events attached to a user task instance.

Is it possible to achieve this by using public Flowable APIs? What would be a recommended way for that?

Thank you!

Best,
Vasil

2

Hi Vasil,

You could suspend the process instance. This will postpone all the timer events as well.

Best regards,

Tijs

3

Hi Tijs,

thank you for your reply!

Our use case is going into a bit different direction though. Let’s imagine the following situation. There is a task with 2 boundary timer events attached to it which are supposed to fire in, let’s say, 2 hours and in 3 hours respectively. We want to be able to hasten them by, let’s say, one hour, so, that after the alteration, they will fire in an hour and 2 hours respectively instead. We would also like to be able to postpone them. In the previous example, postponing by one day would result in the first event to fire in 1 day and 2 hours and the second - in 1 day and 3 hours.

Is that feasible?

Thank you!

Best regards,
Vasil

4

Hi Vasil,

May be you can re-schedule timer in the command. See org.flowable.engine.impl.cmd.JobRetryCmd#execute

Regards
Martin

1 Like
5

Hi Martin,

We’ll try that. The only concern for us is that we’ll have to use the “impl” classes. But looks like it’s the best way.
Thank you very much!

Best,
Vasil

6

Another possibility could be to delete timer and create new one.

1 Like
7

Is there an API for this?

8

There is no public API for deleting and creating timers (Timers are managed internally by engine).
But you can do anything with org.flowable.job.service.impl.persistence.entity.TimerJobEntityManager.

Martin

1 Like
9

Thanks Martin! Investigating.

Best,
Vasil