BPM 11g ids:getUsersInAppRole function

Question

Hello,
I'm working on BPM 11g, and I'm trying to use the getUsersInAppRole function but it returns multiple nodes since there are more than one user in the role, then while trying to assign it to a XML list of strings it throws an exception. I think I should use a transformation to achieve the assignment, but what do I use as a source element since it is the result of a function and I don't know what type it returns?
thanks

Answer 1

Hi Josué,
Let me preface this by saying I'm not especially proud of this solution. It's a workaround to a bug (at least I think it is a bug) in 11.1.1.5.
Here are the steps I did. Let me know if one or more of these do not make sense.
1. Before entering the subprocess, I populate a 'parts' variable (a component variable that is a Types.Participants) from my method call (know you're using 'getUsersInAppRole' - I'm using a different method that returns this type). This stores the array of userObject (a Types.UserObjects type component).
2. Create the subprocess using the 'MultiInstance' loop characteristic and uncheck the 'Is Sequential' checkbox. For the subprocess's Loop Cardiality I used the XPath Expression
count(bpmn:getDataObject('parts')/ns:userObject)In the Completion Condition box, check the Use Expression checkbox and enter the XPath Expression
bpmn:getActivityInstanceAttribute('subprocess0', 'loopCounter')  <= count(bpmn:getDataObject('parts')/ns:userObject)3. In the Arguments Definition tab, the incoming needs to be (in my case anyway) a variable of the type 'Types.UserObjects'. This means that you're passing in the whole array of users instead of a single userObject. The reason I had to do this is because when you click the arguments 'Use Associations' checkbox and edit it and click the Expression Builder icon, the loopCounter is not present in the list of available variables (the loopCounter variable is used by the subprocess to keep track of the loop count that you're currently on). Because it is not in the list, you cannot just pass in the single UserObject.
4. You can work around this problem by retrieving it using a Script activity (or using the incoming associations to any activity) and setting a 'part' variable (a variable of the type Types.UserObject) to
parts.userObject[loopCounter]It's odd that you can get the loopCounter variable everywhere inside the subprocess activity you need it except for inside the incoming Arguments Definition tab.
Hope this helps,
Dan