[jboss-user] [JBoss jBPM] - Re: Interaction between two actors

[estaub]

Dan,

The short answer is: it will work.

You've fallen into a common newbie wrong-thought.

Imagine that a deployment has a million processes running, but steps only happen once a day.  A workflow engine that ran a separate Java thread for each process would be a pig.

So instead, engines are always event-based.  You'll never see one go into a wait() state for a particular process.  Instead, when a process blocks waiting for an external event, the state is persisted.  

When the event happens, it restores the process state and continues.  

I've simplified the following:
  - processes can fork and be in more than one state at the same time.
  - the persistence behavior is a little more complicated.
See the userguide for more.

-Ed Staub

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