[jboss-user] [JBoss Seam] - System generated event to continue a business process

[karl.martens]

Is there a way to have a system generated event continue a business processes?

Situation
=======
  I have a Seam page flow that create a business process as the last step in the page flow.  The business process immediately begins processing the request but as part of the process submits a request to third party vendor that may take several days to complete.  Once the vendor completes the task our system will be notified.  

  I've tried modeling this situation as a wait state but I cannot find any documentation on how to continue the business process.  There are references to the @StartTask and @EndTask for user generated continuations that use a request parameter TaskID.  Is there something similar for system events that an EJB could initiate (I'm hoping without an http request and creating a system user)?

  I've attempted starting the process using the technique described in the JBpm documentation.

        JbpmContext context = JbpmConfiguration.getInstance().createJbpmContext();
        try {
            GraphSession session = context.getGraphSession();
            ProcessDefinition processDefinition = session.findLatestProcessDefinition("myProcess");
            ProcessInstance processInstance = new ProcessInstance(processDefinition);
            ContextInstance contextInstance = processInstance.getContextInstance();
            contextInstance.createVariable("param1", paramInstance.getId());
            Token token = processInstance.getRootToken();
            token.signal();
            context.save(processInstance);
        } finally {
            context.close();
        }

  This results in the exception
    java.lang.IllegalStateException: No application context active
        at org.jboss.seam.Component.forName(Component.java:1577)
        at org.jboss.seam.Component.getInstance(Component.java:1627)
        at org.jboss.seam.Component.getInstance(Component.java:1610)

  I believe this is a result of the seam context not properly being initialized.

Configuration
===========
  I'm using seam version 1.2.1 with JBoss 4.0.5 with EJB3.0

Any assistance would greatly be appreciated.


View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4064664#4064664

Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4064664