[jboss-user] [jBPM] - What is the right way to work with persistent sessions and processes?

[Miljenko Norsic]

Miljenko Norsic [http://community.jboss.org/people/mnorsic] created the discussion

"What is the right way to work with persistent sessions and processes?"

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Hi,

I've seen a couple of samples that make use of JPA persistence built into the jBPM5, but I do not understand what is the preferred way to work with persistent knowledge sessions and processes?

For example, I'd like to know when to create a new persistent knowledge session (and its processes)? One ksession for everything? Or maybe one ksession per group of processes that are related to the same fact (eg. if I'm creating a set of processes that manage Person facts, is it normal to create one persistent ksession per Person fact, and create processes on top of that ksession)?

I wonder because if the number of facts per ksession is high, I might have a performance problem when serializing/deserializing facts from database...

Another question: is it possible to use "custom" persistence strategy, e.g. if I want Person object instance from ksession to be stored into a separate table instead into a raw byte array?

Thanks,
Miljenko
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