[jbpm-users] Using Work Items out of a process

Hi, I am adding the ability to execute WorkItems as function calls in Actions defined in Drools Guvnor. The intent is not to duplicate the invocation of Rules and WorkItems from within a process using Task nodes, but a simple means for non-jBPM users to call functions defined as WorkItems from rules. At present, my prototype adds DRL to the RHS of a rule along these lines:- ... when WorkItemManager wim = drools.getWorkingMemory().getWorkItemManager(); SessionConfiguration sessionConfiguration = (SessionConfiguration) kcontext.getKnowledgeRuntime().getSessionConfiguration(); Map handlers = sessionConfiguration.getWorkItemHandlers(); WorkItemHandler wihMyStringTask = handlers.get( "MyStringTask" ); if( wihMyStringTask != null ) { WorkItemImpl wiMyStringTask = new WorkItemImpl(); wiMyStringTask.getParameters().put( "Param1-string", "hello" ); wihMyStringTask.executeWorkItem( wiMyStringTask, wim ); } Parameters are defined as literals or bound to facts\fields in the UI. I'm not convinced of the value of Result parameters for this use-case, as execution of the Work Item has no context, however it is possible they will end up in Working Memory and can be re-bound for use in other rules. My concerns are that the WorkItem does not have an ID, a State or a ProcessInstanceID and I am concerned WorkItem implementations may break when signalling back to the ProcessManager (or other internal jBPM plumbing I've not come to yet). Can anybody with a greater insight of jBPM's internals comment (or am I heading towards a train wreck of biblical proportions)? Cheers, Mike