Seam & JBPM

[javacoryd]

I'm having trouble with a simple workflow.

For now, my workflow is pretty simple where I have a start state which transitions to a decision state and then to an end state.

My problem is when I start the workflow I capture the ID of an entity bean and out-ject that ID ( as a string ) into the 'business process' scope essentially associating my entity with the business process.  The decision state then has an expression method call which then is supposed to use the out-jected ID to determine the next transition.

However, the ID is not being injected into my stateless session bean even though I can see it via:

Contexts.getBusinessProcessContext().get(myBeanId )

Any help would be appreciated.

Thanks,

Cory.

[gavin.king]

Show us the code of the SLSB that is trying to inject myBeanId.

[javacoryd]

Thanks much for the response.

I found a similar post which helped me to alleviate the issue, although I'm not sure why.  Here is the post:

Link to posting

The same bean that was starting the business process via @CreateProcess was also handling the events from the BPM.  If I separate the BPM handler from the class which starts the process, the injection works as expected.

Let me know if you still need the code.

Thanks,

Cory.

[trouby]

The same bean that was starting the business process via @CreateProcess was also handling the events from the BPM. If I separate the BPM handler from the class which starts the process, the injection works as expected.

This is a known issue and was posted by many people,

Is there any reason for this to happen?
note: the injection does not occur only for the first time the process tries to invoke a method over the seam component that was created the process with @CreateProcess.

Asaf.

[tom_goring]

I'm getting this problem.

The bean that started the process when called from an expression in the process definition no injection occurs.

Should a JIRA be raised ?

My work around at the moment is to call another seam bean that calls my 'process' bean.

     <node name="createTempAgentManager">
          <transition to="sendTempWelcomeEmail">
               <action expression="#{elFunc.interpolate('agentInviteProcess.createTempAgentManager()')}"></action>          
          </transition>
     </node>

Injection does not occur with this example:

     <node name="createTempAgentManager">
          <transition to="sendTempWelcomeEmail">
               <action expression="#{agentInviteProcess.createTempAgentManager()}"></action>          
          </transition>
     </node>

[pmuir]

Can you clearly explain the problem from the beginning?

[mtorres]

I think its related to http://www.seamframework.org/Community/BijectionAndJBpmNodeActions. If you're using the same component as a handler to multiple nodes on the bpm, injection happen only on the initial node. I think its because the unproxied bean is stored in the method context, which the succeeding calls use.

I posted a solution at the end of this thead, that was working in my case using non-ejb handlers. Is there any drawback to this approach?