Resource Management

[hmartim]

Hi,

in previous post (http://forums.activiti.org/en/viewtopic.php?f=3&t=188), I asked about parametrized resource, and Joram suggested to implement an 'AssignmentHandler'.

Thinking more about this, would be possible treat this concern using the "IdentityService", for example, providing a operation like that

List<User> findUsersByGroup(String groupId, List<GroupParameterBinding> groupParametersBinding)

where "GroupParameterBinding" would have "parameterId" and "value" as attributes?

– or something like that (it was just a way to explain).

So the Actitvi Engine could parse the BPMN 2.0 parametrized resource assignment, as below, and, in this case, calls this specfic operation signature.

<userTask id="ApproveOrder" name="ApproveOrder">
  <potentialOwner resourceRef="regionalManager">
    <resourceParameterBinding parameterRef="buyerName">
       <formalExpression>${buyerName}</formalExpression>
    </resourceParameterBinding>
    <resourceParameterBinding parameterRef="region">
    <formalExpression>${regionName}</formalExpression>
       </resourceParameterBinding>
</potentialOwner>
</userTask>


If this parse (of an official element of BPMN 2.0) was done directly in Activiti Engine, we could customize only the "IdentityService" in our application (a work that we already will do), without affect the core of the Engine.

Is it could be a way?

Thanks,
Hudson.

[tombaeyens]

We now have a dynamic resolving of assignments through the expressions you can use.
We don't plan to introduce BPMN-specific notions in our identity abstractions.
We do consider to introduce a TaskAssignmentHandler later on to allow for more flexible assignment handling.  But that planning is not yet concrete.