I have a process with a task in a loop, and although the assignment handler
gets called the first time, it doesn't get called any subsequent times. Here's
an example process that shows the behavior:
| <process-definition name="Task Loop Test">
| <swimlane name='sl'>
| <assignment
class='com.gallium.sandbox.delegation.TaskAssignmentHandler' />
| </swimlane>
| <start-state name="start">
| <transition name="go" to="mytask" />
| </start-state>
| <task-node name="mytask">
| <task name='myTask' swimlane='sl' />
| <transition name="again" to="wait" />
| <transition name="done" to="end" />
| </task-node>
| <state name="wait">
| <timer duedate="20 seconds" transition="continue" />
| <transition name="continue" to="mytask" />
| </state>
| <end-state name="end"/>
| </process-definition>
|
Here's my assignment handler:
| public void assign(Assignable ass, ExecutionContext ctx) throws
Exception {
| log.debug("****************");
| log.debug("Assigning to Ian");
| log.debug("****************");
| ass.setActorId("ian");
| }
|
Here's my log for leaving the start state:
| 2006-02-23 09:58:42,375 DEBUG [org.jbpm.configuration.JbpmContextInfo]
creating jbpm context with service factories '[message, scheduler, logging,
persistence, authentication]'
| 2006-02-23 09:58:42,375 DEBUG [org.jbpm.JbpmContext] creating JbpmContext
| 2006-02-23 09:58:42,375 DEBUG
[org.jbpm.persistence.db.DbPersistenceServiceFactory] creating persistence
service
| 2006-02-23 09:58:42,375 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] creating hibernate session
| 2006-02-23 09:58:42,375 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] beginning hibernate transaction
| 2006-02-23 09:58:42,406 DEBUG [org.jbpm.graph.def.GraphElement] event
'before-signal' on 'StartState(start)' for 'Token(/)'
| 2006-02-23 09:58:42,421 WARN
[org.hibernate.engine.StatefulPersistenceContext] Narrowing proxy to class
org.jbpm.graph.node.StartState - this operation breaks ==
| 2006-02-23 09:58:42,421 DEBUG [org.jbpm.graph.def.GraphElement] event
'node-leave' on 'StartState(start)' for 'Token(/)'
| 2006-02-23 09:58:42,421 DEBUG [org.jbpm.graph.def.GraphElement] event
'transition' on 'Transition(go)' for 'Token(/)'
| 2006-02-23 09:58:42,421 DEBUG [org.jbpm.graph.def.GraphElement] event
'node-enter' on 'TaskNode(mytask)' for 'Token(/)'
| 2006-02-23 09:58:42,421 WARN
[org.hibernate.engine.StatefulPersistenceContext] Narrowing proxy to class
org.jbpm.graph.node.TaskNode - this operation breaks ==
| 2006-02-23 09:58:42,921 DEBUG [org.jbpm.graph.def.GraphElement] event
'task-create' on 'Task(myTask)' for 'Token(/)'
| 2006-02-23 09:58:42,953 DEBUG [long] ****************
| 2006-02-23 09:58:42,953 DEBUG [long] Assigning to Ian
| 2006-02-23 09:58:42,953 DEBUG [long] ****************
| 2006-02-23 09:58:42,953 DEBUG [org.jbpm.graph.def.GraphElement] event
'task-assign' on 'Task(myTask)' for 'Token(/)'
| 2006-02-23 09:58:42,953 DEBUG [org.jbpm.graph.def.GraphElement] event
'after-signal' on 'StartState(start)' for 'Token(/)'
| 2006-02-23 09:58:42,953 DEBUG [org.jbpm.svc.Services] executing default
save operations
| 2006-02-23 09:58:42,953 DEBUG [org.jbpm.svc.save.HibernateSaveOperation]
saving process instance
| 2006-02-23 09:58:42,953 DEBUG [org.jbpm.svc.save.SaveLogsOperation]
flushing logs to logging service.
| 2006-02-23 09:58:42,953 DEBUG [org.jbpm.svc.save.CascadeSaveOperation]
cascading save of '[EMAIL PROTECTED]'
| 2006-02-23 09:58:42,984 DEBUG [org.jbpm.JbpmContext] closing JbpmContext
| 2006-02-23 09:58:42,984 DEBUG [org.jbpm.svc.Services] closing service
'persistence': [EMAIL PROTECTED]
| 2006-02-23 09:58:42,984 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] committing hibernate transaction
| 2006-02-23 09:58:43,171 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] closing hibernate session
| 2006-02-23 09:58:43,187 DEBUG [org.jbpm.svc.Services] closing service
'logging': [EMAIL PROTECTED]
|
It enters the task node and correctly calls the swimlane's assignment handler.
Here I end the task with a transition to "wait:"
| 2006-02-23 09:59:08,656 DEBUG [org.jbpm.configuration.JbpmContextInfo]
creating jbpm context with service factories '[message, scheduler, logging,
persistence, authentication]'
| 2006-02-23 09:59:08,656 DEBUG [org.jbpm.JbpmContext] creating JbpmContext
| 2006-02-23 09:59:08,656 DEBUG
[org.jbpm.persistence.db.DbPersistenceServiceFactory] creating persistence
service
| 2006-02-23 09:59:08,656 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] creating hibernate session
| 2006-02-23 09:59:08,656 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] beginning hibernate transaction
| 2006-02-23 09:59:08,781 DEBUG [org.jbpm.graph.def.GraphElement] event
'task-end' on 'Task(myTask)' for 'Token(/)'
| 2006-02-23 09:59:08,796 DEBUG [org.jbpm.taskmgmt.exe.TaskInstance]
completion of task 'myTask' results in taking transition 'Transition(again)'
| 2006-02-23 09:59:08,796 DEBUG [org.jbpm.graph.def.GraphElement] event
'before-signal' on 'TaskNode(mytask)' for 'Token(/)'
| 2006-02-23 09:59:08,796 DEBUG [org.jbpm.graph.def.GraphElement] event
'node-leave' on 'TaskNode(mytask)' for 'Token(/)'
| 2006-02-23 09:59:08,796 DEBUG [org.jbpm.graph.def.GraphElement] event
'transition' on 'Transition(again)' for 'Token(/)'
| 2006-02-23 09:59:08,812 DEBUG [org.jbpm.graph.def.GraphElement] event
'node-enter' on 'State(wait)' for 'Token(/)'
| 2006-02-23 09:59:08,812 WARN
[org.hibernate.engine.StatefulPersistenceContext] Narrowing proxy to class
org.jbpm.graph.node.State - this operation breaks ==
| 2006-02-23 09:59:08,875 DEBUG [org.jbpm.graph.def.GraphElement] executing
action 'CreateTimerAction(130cda4)'
| 2006-02-23 09:59:08,875 DEBUG [org.jbpm.graph.def.GraphElement] event
'timer-create' on 'State(wait)' for 'Token(/)'
| 2006-02-23 09:59:08,890 DEBUG [org.jbpm.graph.def.GraphElement] event
'after-signal' on 'TaskNode(mytask)' for 'Token(/)'
| 2006-02-23 09:59:08,890 DEBUG [org.jbpm.svc.Services] executing default
save operations
| 2006-02-23 09:59:08,890 DEBUG [org.jbpm.svc.save.HibernateSaveOperation]
saving process instance
| 2006-02-23 09:59:08,890 DEBUG [org.jbpm.svc.save.SaveLogsOperation]
flushing logs to logging service.
| 2006-02-23 09:59:08,890 DEBUG [org.jbpm.svc.save.CascadeSaveOperation]
cascading save of '[EMAIL PROTECTED]'
| 2006-02-23 09:59:08,921 DEBUG [org.jbpm.JbpmContext] closing JbpmContext
| 2006-02-23 09:59:08,921 DEBUG [org.jbpm.svc.Services] closing service
'persistence': [EMAIL PROTECTED]
| 2006-02-23 09:59:08,921 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] committing hibernate transaction
| 2006-02-23 09:59:08,984 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] closing hibernate session
| 2006-02-23 09:59:08,984 DEBUG [org.jbpm.svc.Services] closing service
'scheduler': [EMAIL PROTECTED]
| 2006-02-23 09:59:08,984 DEBUG [org.jbpm.svc.Services] closing service
'logging': [EMAIL PROTECTED]
|
Here's a clip to show that it was saved properly and the scheduler finds the
timer:
| 2006-02-23 09:59:11,234 DEBUG [org.jbpm.configuration.JbpmContextInfo]
creating jbpm context with service factories '[message, scheduler, logging,
persistence, authentication]'
| 2006-02-23 09:59:11,328 DEBUG [org.jbpm.JbpmContext] creating JbpmContext
| 2006-02-23 09:59:11,328 DEBUG
[org.jbpm.persistence.db.DbPersistenceServiceFactory] creating persistence
service
| 2006-02-23 09:59:11,328 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] creating hibernate session
| 2006-02-23 09:59:11,328 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] beginning hibernate transaction
| 2006-02-23 09:59:11,328 DEBUG [org.jbpm.scheduler.impl.SchedulerThread]
checking for timers
| 2006-02-23 09:59:11,328 DEBUG [org.jbpm.scheduler.impl.SchedulerThread]
found timer timer(wait,09:59:28,000)
| 2006-02-23 09:59:11,406 DEBUG [org.jbpm.JbpmContext] closing JbpmContext
| 2006-02-23 09:59:11,406 DEBUG [org.jbpm.svc.Services] closing service
'persistence': [EMAIL PROTECTED]
| 2006-02-23 09:59:11,406 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] committing hibernate transaction
| 2006-02-23 09:59:11,406 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] closing hibernate session
|
And here's the execution of the timer:
| 2006-02-23 09:59:28,000 DEBUG [org.jbpm.configuration.JbpmContextInfo]
creating jbpm context with service factories '[message, scheduler, logging,
persistence, authentication]'
| 2006-02-23 09:59:28,000 DEBUG [org.jbpm.JbpmContext] creating JbpmContext
| 2006-02-23 09:59:28,000 DEBUG
[org.jbpm.persistence.db.DbPersistenceServiceFactory] creating persistence
service
| 2006-02-23 09:59:28,000 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] creating hibernate session
| 2006-02-23 09:59:28,000 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] beginning hibernate transaction
| 2006-02-23 09:59:28,000 DEBUG [org.jbpm.scheduler.impl.SchedulerThread]
checking for timers
| 2006-02-23 09:59:28,000 DEBUG [org.jbpm.scheduler.impl.SchedulerThread]
found timer timer(wait,09:59:28,000)
| 2006-02-23 09:59:28,000 DEBUG [org.jbpm.scheduler.impl.SchedulerThread]
executing timer 'timer(wait,09:59:28,000)'
| 2006-02-23 09:59:28,015 DEBUG [org.jbpm.graph.def.GraphElement] event
'before-signal' on 'State(wait)' for 'Token(/)'
| 2006-02-23 09:59:28,015 DEBUG [org.jbpm.graph.def.GraphElement] event
'node-leave' on 'State(wait)' for 'Token(/)'
| 2006-02-23 09:59:28,109 DEBUG [org.jbpm.graph.def.GraphElement] executing
action 'CancelTimerAction(8d2e37)'
| 2006-02-23 09:59:28,109 DEBUG [org.jbpm.graph.def.GraphElement] event
'transition' on 'Transition(continue)' for 'Token(/)'
| 2006-02-23 09:59:28,109 DEBUG [org.jbpm.graph.def.GraphElement] event
'node-enter' on 'TaskNode(mytask)' for 'Token(/)'
| 2006-02-23 09:59:28,109 WARN
[org.hibernate.engine.StatefulPersistenceContext] Narrowing proxy to class
org.jbpm.graph.node.TaskNode - this operation breaks ==
| 2006-02-23 09:59:28,109 DEBUG [org.jbpm.graph.def.GraphElement] event
'task-create' on 'Task(myTask)' for 'Token(/)'
| 2006-02-23 09:59:28,203 DEBUG [org.jbpm.graph.def.GraphElement] event
'task-assign' on 'Task(myTask)' for 'Token(/)'
| 2006-02-23 09:59:28,203 DEBUG [org.jbpm.graph.def.GraphElement] event
'after-signal' on 'State(wait)' for 'Token(/)'
| 2006-02-23 09:59:28,203 DEBUG [org.jbpm.svc.Services] executing default
save operations
| 2006-02-23 09:59:28,203 DEBUG [org.jbpm.svc.save.HibernateSaveOperation]
saving process instance
| 2006-02-23 09:59:28,203 DEBUG [org.jbpm.svc.save.SaveLogsOperation]
flushing logs to logging service.
| 2006-02-23 09:59:28,203 DEBUG [org.jbpm.svc.save.CascadeSaveOperation]
cascading save of '[EMAIL PROTECTED]'
| 2006-02-23 09:59:28,234 DEBUG [org.jbpm.scheduler.impl.SchedulerThread]
deleting timer 'timer(wait,09:59:28,000)'
| 2006-02-23 09:59:28,234 DEBUG [org.jbpm.JbpmContext] closing JbpmContext
| 2006-02-23 09:59:28,234 DEBUG [org.jbpm.svc.Services] closing service
'persistence': [EMAIL PROTECTED]
| 2006-02-23 09:59:28,234 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] committing hibernate transaction
| 2006-02-23 09:59:28,296 DEBUG
[org.jbpm.persistence.db.DbPersistenceService] closing hibernate session
| 2006-02-23 09:59:28,296 DEBUG [org.jbpm.svc.Services] closing service
'scheduler': [EMAIL PROTECTED]
| 2006-02-23 09:59:28,296 DEBUG [org.jbpm.svc.Services] closing service
'logging': [EMAIL PROTECTED]
|
It fires the task-assign event, it just doesn't call my custom code. Any ideas
what's going on here, or any workaround? This is a critical part of my
application, and all help is appreciated.
Thanks in advance,
Ian
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