Multi-instance collection and element variable

As we transition to the new Hyland Community, some post links may be temporarily disrupted as we finalize redirects. We apologize for the inconvenience and are working to resolve this as quickly as possible. Details.

turrian

In the Activiti User Guide 5.3, in the Multi-instance section, there is an exemple showing how using collection and elementVariable to get something like this:

<userTask id="miTasks" name="My Task" activiti:assignee="${assignee}">
  <multiInstanceLoopCharacteristics isSequential="false"
     activiti:collection="assigneeList" activiti:elementVariable="assignee" >
  </multiInstanceLoopCharacteristics>
</userTask>

How can I define such a task with Activiti Modeler ?

frederikherema1

You can define the loopcharacteristincs on the modeler. unfortunatly, the activiti-extentions (activiti:collection activiti:elementVariable) are not supported by the modeler.

As stated in the userguide, these extentions are shorthand for the BPMN way of defining (loopDataInputRef, loopDataItem) but don't support using "expression"

The downside of the loopDataInputRef and inputDataItem is that 1) the names are pretty hard to remember and 2) due to the BPMN 2.0 schema restrictions they can't contain expressions. Activiti solves this by offering the collection and elementVariable attributes on the multiInstanceCharacteristics: