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Struts & Hibernate
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| | | - System generated event to continue a business proces | - System generated event to continue a business proces 2007-07-16 - By karl.martens
Back
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 @(protected) and @(protected) 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
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