sub-process invocation problem

[flawlor]

I am trying a simple test of having a process invoke a subprocess.
I'm running into a problem in that when the sub-process is invoked it is starting with the second node even though the start node has a task associated with it.

That start task ("SSSSimple Start Task") never shows up in the tasklist and the variables associated with it are never defined.

I am using jBPM 3.1.

Below are the definition of the "SuperSimple" (caller) and "Simple" (callee) processes.

<process-definition
 xmlns="urn:jbpm.org:jpdl-3.1" name="SuperSimple">
 <swimlane name="swimlane1">
 <assignment expression="user(grover)"></assignment>
 </swimlane>
 <start-state name="Super Startxx">
 <task name="Super Task" swimlane="swimlane1">
 <controller>
 <variable name="whatever"></variable>
 </controller>
 </task>
 <transition name="to call Simple" to="call simple"></transition>
 </start-state>
 <end-state name="end Super"></end-state>
 <process-state name="call simple">
 <sub-process name="simple" />
 <transition name="to after simple" to="After Simple Call"></transition>
 </process-state>
 <task-node name="After Simple Call">
 <task name="Task after simple call" swimlane="swimlane1">
 <controller>
 <variable name="wasOK"></variable>
 </controller>
 </task>
 <transition name="to end super" to="end Super"></transition>
 </task-node>
</process-definition>


<process-definition
 xmlns="urn:jbpm.org:jpdl-3.1"
 name="simple">
 <swimlane name="swimlane1">
 <assignment expression="user(grover)"></assignment>
 </swimlane>
 <start-state name="SSSSimple Start">
 <task name="SSSSimple Start Task" swimlane="swimlane1">
 <controller>
 <variable name="color"></variable>
 <variable name="size"></variable>
 </controller>
 </task>
 <transition name="" to="Simple task"></transition>
 </start-state>
 <end-state name="end Simple"></end-state>
 <task-node name="Simple task">
 <task name="Simple Task" swimlane="swimlane1">
 <controller>
 <variable name="taskVar"></variable>
 </controller>
 </task>
 <transition name="to end" to="end Simple"></transition>
 </task-node>
</process-definition>

[hosierdm]

If you do a search, including my username, you should see some information on this. I had the same question and got an answer.

[flawlor]

I did a search on your name and looked at dozens of hits and still couldn't find the one which addresses this problem.

Cany you give me a link or some keywords?

thanks

[hosierdm]

Here is the post I was referring to:
http://jboss.org/index.html?module=bb&op=viewtopic&t=80327

Not as helpful as I remember. Basically Koen said that when a process is executed as a subprocess, the intended behavior is for the subprocess to not stop on tasks associated with the start state. Maybe Koen has more to offer, but that's about the extent of my knowledge on the subject.

[flawlor]

Thanks, that does help.

So long as I know that I can depend upon that behavior I can program to it. As indicated, that behavior can be useful for doing initialization which only needs to be done when the subprocess is run standalone.

Lombardi TeamWorks has the concept of default values for subprocesses and the ability to run any subprocess and this is an enormous development productivity enhancer