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javabusiness-process-managementbpmncamunda

How to determine the lane of a call activity?

I have a Call Activity, which is used in different lanes of my BPMN diagram. There is a task inside the Call Activity. Is it possible to determine the Lane of the Call Activity from the Task?

It looks something like this in the pictures here:

Process Diagram

Call Activity

I want to determine "MyLane1" respectively "MyLane2" from inside the Task "Get parent Lane".

Solution

  • You can use the BPMN Model API to determine the lane which references an activity:

    ProcessDefinition procDef  = repositoryService.createProcessDefinitionQuery().processDefinitionKey("idOfProcess").singleResult();
BpmnModelInstance bpmnModelInstance = repositoryService.getBpmnModelInstance(procDef.getId());

CallActivity callActivity = null;

Collection<Lane> lanes = bpmnModelInstance.getModelElementsByType(Lane.class);
// iterate the lanes
for (Lane lane : lanes) {
  // iterate the flownodes referenced by the lane:
  for (FlowNode flowNode : lane.getFlowNodeRefs()) {
    if("idOfCallactivity".equals(flowNode.getId())) {
      callActivity = (CallActivity) flowNode;
      break;
    }
  }
}


if(callActivity != null) {
  // work with callactivity
}