[jboss-user] [JBoss Seam] - task/process id may not be null

[QPool.Char]

Hello, i m using Seam 2.0 in production-development.

We have a small problem here, and it would be nice if anyone could help me out.

There is a method which is called by a JSF-Menu

	
  | 	public String startDemoWorkflow() {
  | 		resumeDemo.startDemo();
  | 		resumeDemo.advance();
  | 		return "home";
  | 	}
  | 

StartDemo() invokes a jBPM Workflow in a class like this:


  | 	@In(value="processInstance", required=false, scope=ScopeType.BUSINESS_PROCESS) 
  | 	@Out(value="processInstance", required=false)
  | 	ProcessInstance processInstance;
  | 	
  | 	@In(value="taskInstance", required=false, scope=ScopeType.BUSINESS_PROCESS)
  | 	@Out(value="taskInstance", required=false)
  | 	TaskInstance taskInstance;
  | 
  | 	@CreateProcess(definition="demo")
  | 	public ExeWorkflow startDemo() {		
  | 		return new ExeWorkflow();
  | 	}
  | 	
  | 	public void advance() {
  | 		try {
  | 			System.out.println("************************* Actual ProcessID: " + processInstance.toString());
  | 		}
  | 		catch (Exception e) {
  | 			e.printStackTrace();
  | 		}
  | 	}
  | 

After startDemo() the method advanced() is called. But processInstance is always null. It should be injected at this moment, since the Workflow is started. I tried several Annotations above the advance() method, but none of them worked.

The Seam-Tutorial says that after the method that creates the Workflow-Instance, the processInstance could be retrieved by the context, which can be injected.

Does anyone have an idea to solve this problem?

Thx in advance!

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