Change the status workflow

[magnumff]

hi
I want to change the status workflow from a client external the web service (jbpm)

code:

Object o=commandService.execute(new GetProcessInstanceCommand(17));
ProcessInstance process=(ProcessInstance)o;
process.signal();

my error is :

class org.jbpm.graph.exe.ProcessInstance
org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: org.jbpm.graph.exe.ProcessInstance.instances, no session or session was closed
at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationException(AbstractPersistentCollection.java:358)
at org.hibernate.collection.AbstractPersistentCollection.throwLazyInitializationExceptionIfNotConnected(AbstractPersistentCollection.java:350)
at org.hibernate.collection.AbstractPersistentCollection.readElementByIndex(AbstractPersistentCollection.java:151)
at org.hibernate.collection.PersistentMap.get(PersistentMap.java:127)
at org.jbpm.graph.exe.ProcessInstance.getInstance(ProcessInstance.java:212)
at org.jbpm.graph.exe.Token.startCompositeLog(Token.java:377)
at org.jbpm.graph.exe.Token.signal(Token.java:188)
at org.jbpm.graph.exe.Token.signal(Token.java:140)
at org.jbpm.graph.exe.ProcessInstance.signal(ProcessInstance.java:271)
at ProvaClient.main(ProvaClient.java:46)
Exception : org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: org.jbpm.graph.exe.ProcessInstance.instances, no session or session was closed
Cause : null
StackTrace : [Ljava.lang.StackTraceElement;@15db314
Message : failed to lazily initialize a collection of role: org.jbpm.graph.exe.ProcessInstance.instances, no session or session was closed

[kukeltje]

you get the processInstance back, retrieve the id from it and use a command to signal it... not the objects... they are always 'detached' since they are webservices...

The remote-client api is not that advanced that is does that for you