Get execution id to signal a receiveTask in a subprocess

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joachimvda

Hi,

I have a workflow which contains a subprocess (embedded). This subprocess contains a receiveTask.

I am writing a junit test in which I want to signal that receiveTask.
In my process I have set the businessKey when creating the process and I also have a process variable which contains that business key.

I cannot find a way to get the correct execution id to assure that the signal succeeds.

My first try was

runtimeService.createExecutionQuery().processInstanceBusinessKey(businessKey).singleResult())‍

but this causes a NPE as this return the process id of the parent process, not the subprocess.

I tried searching by doing a query on the super process:

ProcessInstance parentProcess = runtimeService.createProcessInstanceQuery()
                .processInstanceBusinessKey(businessKey(vorderingsopdracht))
                .singleResult();
        ProcessInstance subProcess = runtimeService.createProcessInstanceQuery()
                .superProcessInstanceId(parentProcess.getId())
                .singleResult();
        Execution execution = runtimeService.createExecutionQuery().
                    processInstanceId(subProcess.getId()).singleResult();‍‍‍‍‍‍‍‍

Unfortunately this fails as the superProcessInstanceId query returns no results.

The only way I found to find a working execution is using

runtimeService.createExecutionQuery().
                activityId("wachtenAfgewerkt").
                singleResult();‍‍‍

This obviously has the problem that I have a problem figuring out the correct execution if there is more than one.

What is the suggested way to find the correct execution object?

I am using 5.10-SNAPSHOT (as I am also using designer 5.9.2 and 5.9 does not recognize the .bpmn flows).

trademak

Hi,

An embedded sub process is only a container in the process definition, not a process definition on itself.
If you would want that you need to use a call activity and a standalone sub process.
So your code is actually the way to approach this:

runtimeService.createExecutionQuery().<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; activityId("wachtenAfgewerkt").<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; singleResult();
But you can extend this query with a specific processInstanceId or processDefinitionKey value to get the right instance.

Best regards,