CMMN/BPMN: Find all User tasks by Variable (strange behavior)

Camunda 7 Topics Discussion & Questions
1

Is it possible to send one API request to get all UserTasks by specific variable, independently if they are in CMMN or BPMN?

taskService.createTaskInstanceQuery().caseInstanceVariableValueEquals(…).list()
taskService.createTaskInstanceQuery().processInstanceVariableValueEquals(…).list()

Actually, I would like to search for UserTasks which are active and have a specific variable value, independently of the scope of the variable.

Currently, it seems only this is the way to do this:

taskResult.addAll(taskService.createTaskInstanceQuery().caseInstanceVariableValueEquals(…).list())
taskResult.addAll(taskService.createTaskInstanceQuery().processInstanceVariableValueEquals(…).list())
and maybe:
taskResult.addAll(taskService.createTaskInstanceQuery().taskVariableValueEquals(…).list())

But that are two (three) requests instead of one.

EDIT:
I have now a process invoked from a case. The case propagates all variables to the process.

If I search now with caseInstanceVariableValueEquals(…), I find also the UserTask of the BPMN process. Vice versa, I am not able to find UserTasks of CMMN cases via processInstanceVariableValueEquals(…).
That’s a really strange behavior of the engine.

BR,
Michael

2

Hi Michael,

in Camunda 7.8, you can create a task query with OR criteria. Please have a look at the blog post.

Does it work for you?

Best regards,
Philipp

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