ThreadSafe Access to jBPM

[sbhatti]

I understand that JbpmConfiguration is thread safe and can be shared, but can someone let me know if any of following are thread safe:
- JbpmContext
- GraphSession
- ProcessDefinition

Basically, I would like to use a singleton class to keep shared definitions of processes and then create process instnace for different requests. All of these will be running in different threads, so I would like to make sure that context, session and process definition can be accessed safely.
Thanks in advance.

[kukeltje]

the processdefinitions are already kept in the hibernate 2nd level cache, so there is no need to optimise that.

Ronald

[sbhatti]

Right, I understand that I am still wondering whether context, sessions and process definitions can be shared by different threads or should I create them for each client. For example, in JMS sessions cannot be shared across threads so I am not sure if there is similar constraint on these objects.

[koen.aers]

The classes you mention are not threadsafe, so you should indeed create them for each client.

Regards,
Koen