about process-state

[remider]

Who help me about process-state?
structure of process state as:
<process-state name="go">
<sub-process name="simple"/>
<variable name="a" access="read,write" mapped-name="aa" />
<variable name="b" access="read,write" mapped-name="bb" />

</process-state>
i want know " what is <sub-process name=simple>" and where must i place process "simple" ?

[fwshk]

Hi Remider,

In my understanding of jBPM, the "simple" is the name of process.
In other word, you should deploy a process named "simple" into jBPM before execute your process "go".

Roy

[remider]

Hi Roy!
i am think so, too. However, when run, it has a error:
type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Error calling action method of component with id taskform:transitionButton
javax.faces.webapp.FacesServlet.service(FacesServlet.java:109)
org.jbpm.webapp.filter.AuthenticationFilter.doFilter(AuthenticationFilter.java:55)
org.jbpm.web.JbpmContextFilter.doFilter(JbpmContextFilter.java:83)
org.jbpm.webapp.filter.LogFilter.doFilter(LogFilter.java:59)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)

root cause

javax.faces.FacesException: Error calling action method of component with id taskform:transitionButton
org.apache.myfaces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:74)
javax.faces.component.UICommand.broadcast(UICommand.java:106)
javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:90)
javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:164)
org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(LifecycleImpl.java:271)
org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:86)
javax.faces.webapp.FacesServlet.service(FacesServlet.java:94)
org.jbpm.webapp.filter.AuthenticationFilter.doFilter(AuthenticationFilter.java:55)
org.jbpm.web.JbpmContextFilter.doFilter(JbpmContextFilter.java:83)
org.jbpm.webapp.filter.LogFilter.doFilter(LogFilter.java:59)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)

Code for my process state is:
<process-state name="xuly">
<sub-process name="simple"/>
< transition name="" to="task1 < /transition>
</process-state>

although i deloyed "simple" process.
you can help construct process state, thank a lot.
or someone has used process state successfully, can help me, please.
i don't know where prolem is.
Remid

[fwshk]

Hi Remid,

Let me give you my example for reference.
In the example, it is actual 2 processes.
And you should deploy them one by one.

<?xml version="1.0" encoding="UTF-8"?>
<process-definition xmlns="urn:jbpm.org:jpdl-3.1" name="SubProcess">
 <swimlane name="Initiator"></swimlane>
 <start-state name="Start SubProcess">
 <task swimlane="Initiator"></task>
 <transition to="InvokeTimeout"></transition>
 </start-state>
 <process-state name="InvokeTimeout">
 <sub-process name="InnerProcess"></sub-process>
 <transition to="End"></transition>
 </process-state>
 <end-state name="End"></end-state>
</process-definition>

<?xml version="1.0" encoding="UTF-8"?>

<process-definition xmlns="urn:jbpm.org:jpdl-3.1" name="InnerProcess">
 <swimlane name="Roy">
 <assignment expression="user(Roy)"></assignment>
 </swimlane>
 <start-state name="Start InnerProcess">
 <task swimlane="Roy"></task>
 <transition to="Done"></transition>
 </start-state>
 <task-node name="Done">
 <task swimlane="Roy"></task>
 <transition to="End"></transition>
 </task-node>
 <end-state name="End"></end-state>
</process-definition>

Roy

[remider]

Hi Roy,
i finished it and undersranded. Thanks a lot.
Remid

[erzed]

Hi erverbody!

I've got a similar problem. I've created to process definitions. One includes a process state that should start the other process. I deployed both definitions and I can see them in the database.
However when I start the super process i get the followin message:

[WARN ] [11 Aug 2006 10:54:25,217] [main] org.hibernate.engine.StatefulPersistenceContext.ProxyWarnLog.Narrowing proxy to class org.jbpm.graph.node.StartState - this operation breaks ==

The super process instance is created. But the first call to signal() results in an exception. When I analyse the database i see that also the root token has been created. Unfortunately, it never leaves the start state of my super process (the log table in the database shows only a line with the token id and class "I" but no more occurences of the same token).

My processes are:

<?xml version="1.0" encoding="UTF-8"?>

<process-definition xmlns="urn:bearingpoint.com:pdl-3.1"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 name="SuperFlow">

 <!-- GENERAL PART OF EVERY PROCESS DEFINITION -->
 <!-- This general action has to be present in order to use the sla functionality -->
 <action name="slaAction"
 class="com.bearingpoint.infonova.workflow.jbpm.SlaActionHandler" />

 <!-- Needed for retry/wait message cleanup after a node is finished -->
 <event type="node-leave">
 <action name="nodeLeaveAction"
 class="com.bearingpoint.infonova.workflow.jbpm.NodeLeaveActionHandler" />
 </event>

 <start-state name="start">
 <transition name="" to="prior sub-process"></transition>
 </start-state>
 <end-state name="end"></end-state>
 <node name="prior sub-process">
 <transition name="" to="callSubProcess"></transition>
 </node>
 <node name="after sub-process">
 <transition name="" to="end"></transition>
 </node>
 <process-state name="callSubProcess">
 <sub-process name="SubFlow"></sub-process>
 <transition name="" to="after sub-process"></transition>
 </process-state>

</process-definition>

<?xml version="1.0" encoding="UTF-8"?>

<process-definition xmlns="urn:bearingpoint.com:pdl-3.1"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 name="SubFlow">

 <!-- GENERAL PART OF EVERY PROCESS DEFINITION -->
 <!-- This general action has to be present in order to use the sla functionality -->
 <action name="slaAction"
 class="com.bearingpoint.infonova.workflow.jbpm.SlaActionHandler" />

 <!-- Needed for retry/wait message cleanup after a node is finished -->
 <event type="node-leave">
 <action name="nodeLeaveAction"
 class="com.bearingpoint.infonova.workflow.jbpm.NodeLeaveActionHandler" />
 </event>
 <node name="sub-node 1">
 <transition name="" to="sub-node 2"></transition>
 </node>
 <node name="sub-node 2">
 <transition name="" to="sub-node 3"></transition>
 </node>
 <node name="sub-node 3">
 <transition name="" to="end1"></transition>
 </node>
 <start-state name="start">
 <transition name="" to="sub-node 1"></transition>
 </start-state>
 <end-state name="end1"></end-state>
</process-definition>

Anyone had this problem as well?
Or any ideas what this error message means?

Thanks a million!
roman

[kukeltje]

the message you get is a WARNING and can be safely ignored.

If you get an error, please post the stacktrace of that error, we cannot guess.