Ok, here's the situation.
I have a process that relies heavily on timers. In fact, the business process
looks something like: do something, do something else after 10 days, do
something else after 10 more days, etc. Some of the somethings are automated
(node), and some are not (tasknode).
My specific problem is that I have a node that 1) is entered by a timer, 2)
leaves on its own, and 3) enters a node with a timer.
Process snippet describing 1 and 3:
| <state name="wait1">
| <timer duedate="10 seconds" transition="continue" />
| <transition name="continue" to="mynode" />
| </state>
| <node name="mynode">
| <action class="foo.MyActionHandler" />
| <transition to="wait2" />
| </node>
| <state name="wait2">
| <timer duedate="20 seconds" transition="continue" />
| <transition name="continue" to="anotherstate" />
| </state>
|
Part 2:
| public void execute(ExecutionContext ctx) throws Exception {
| log.debug("Executing mynode");
| ctx.leaveNode();
| }
|
Executing it as such creates wait2's timer, but does not save it (as referenced
in other threads
http://www.jboss.com/index.html?module=bb&op=viewtopic&t=69040). If I take the
advice given in that thread and save it explicitly with anything that comes
from JbpmSession.getCurrentJbpmSession() then I get a StaleStateException from
wait1's timer.
For instance, if I do:
| public void execute(ExecutionContext ctx) throws Exception {
| log.debug("Executing mynode");
| ctx.leaveNode();
|
JbpmUtil.saveProcessInstanceFamily(JbpmSession.getCurrentJbpmSession().getGraphSession(),ctx.getProcessInstance());
| }
|
with JbpmUtil.saveProcessInstanceFamily():
| public static void saveProcessInstanceFamily(GraphSession graphSession,
ProcessInstance processInstance) {
| // save family:
| Token token = processInstance.getRootToken();
| log.debug("saving process instance #" +
processInstance.getId());
| graphSession.saveProcessInstance(processInstance);
| if (token.hasParent()) {
| ProcessInstance pi = token.getParent().getProcessInstance();
| log.debug("saving process instance #" + pi.getId());
| graphSession.saveProcessInstance(pi);
| }
| ProcessInstance sub = token.getSubProcessInstance();
| if (sub != null) {
| log.debug("saving process instance #" + sub.getId());
| graphSession.saveProcessInstance(sub);
| }
| }
|
then I get:
| 2006-02-10 14:48:34,253 DEBUG [foo.MyActionHandler] Executing mynode
| 2006-02-10 14:48:34,269 DEBUG [org.jbpm.graph.def.GraphElement] event
'node-leave' on 'Node(mynode)' for 'Token(/)'
| 2006-02-10 14:48:34,269 DEBUG [org.jbpm.graph.def.GraphElement] event
'transition' on 'Transition(1c71a93)' for 'Token(/)'
| 2006-02-10 14:48:34,269 DEBUG [org.jbpm.graph.def.GraphElement] event
'node-enter' on 'State(wait2)' for 'Token(/)'
| 2006-02-10 14:48:34,284 DEBUG [org.jbpm.graph.def.GraphElement] executing
action 'CreateTimerAction(12d12e0)'
| 2006-02-10 14:48:34,331 DEBUG [org.jbpm.db.SchedulerSession] saving timer
timer(wait2,14:48:54,284)
| 2006-02-10 14:48:34,363 DEBUG [org.jbpm.graph.def.GraphElement] event
'after-signal' on 'State(wait1)' for 'Token(/)'
| 2006-02-10 14:48:34,363 DEBUG
[com.gallium.jas.services.workflow.impl.SchedulerBean] deleting timer
'timer(wait1,14:48:34,000)'
| 2006-02-10 14:48:34,394 ERROR [org.hibernate.jdbc.AbstractBatcher]
Exception executing batch:
| org.hibernate.StaleStateException: Batch update returned unexpected row
count from update: 0 actual row count: 0 expected: 1
|
Can anyone offer any advice?
Ian
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3922999#3922999
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3922999
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