> The Spec is vague and vendor docs vary from vendor for the following
> questions:
>
> Multple clients (multiple handles) concurrent access to same method:
>
> - Entity: when will the container allow concurrent calls into same method
>   vs sequentially queue the calls?  Or worse throw an exception to the 2nd
>   -Nth calls.

Hard to say when, but they're certainly allowed in concept. How a container
actually does it is another story. Perhaps it serializes all calls to an entity
bean instance. Or perhaps it creates multiple bean instances and lets the
transaction capabilities of the database sort it out.

> - Stateful Session: ditto

concurrent calls aren't allow to session beans (Section 6.5.6 of the spec). The
bit about "calls to session bean instances are serialized" I believe
refers to container callbacks mixed in with client calls to a session object.

hope that helps,
david

--
David Sims               [EMAIL PROTECTED]
Sims Computing, Inc.       www.simscomputing.com

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