topic Queries in execution listener in Alfresco Archive

Queries in execution listener

thomasl — Tue, 17 Dec 2013 09:53:41 GMT

Hi, I have a process which starts subprocesses and I would like to modify variables from the parent process at the end of a subprocess. I have added a ExecutionListener to my processes. This works fine however within the notify(DelagateExecution) method, I do not manage to get the processInstanceId

Re: Queries in execution listener

frederikherema1 — Tue, 17 Dec 2013 10:42:06 GMT

You can use the activiti:in and activitut to populate parent-process variables using values from the sub-process, when it completes (see userguide). If you really want to do it manually, try casting (instanceof check first) the DelegateExecution to an ExecutionEntity and use the getSuperExecutionId() to retrieve the parent process…

Re: Queries in execution listener

thomasl — Tue, 17 Dec 2013 11:14:31 GMT

Thanks Frederik !

I'll try that. Could it be more straightforward the other way around, i.e. is it possible to easily get subprocess variables from for instance an end event listener of the callActivity ?

(The idea is that I need to merge variables from the parent and child process, I could use activitiut and a scriptTask afterwards but since this are tedious operations to perform, I would like to make it as transparent as possible to the BPMN script developer).

Thanks,

Tom

Re: Queries in execution listener

frederikherema1 — Wed, 18 Dec 2013 07:58:25 GMT

I quite sure the an end-execution-listener is called in the execution-context of the parent process, so the DelegateExecution you get there, is not aware of the child-scope, as it will have been destroyed as part of the end-event of the sub-process.

Re: Queries in execution listener

thomasl — Wed, 18 Dec 2013 09:10:32 GMT

Hi Frederik,

Yes you're right. I tried and the sub-process is not available neither at the callActivity start event nor at the end. However, I used a cast in the sub-process end event to retrieve the parent execution as you proposed and it works fine.

Thanks again, it was very helpful.

Tom