On 8/22/06, Terry Cox <[EMAIL PROTECTED]> wrote:

> Not exactly.  The journaled JDBC does not use howl.

Ah, I see what you mean. The confusion arises because the activeMQ site
claims that the journaled JDBC IS based on howl.



This should be updated  I guess.
Do you know which page ?

Howl must be configured on the transaction manager and is not related
> to ActiveMQ directly.

Ok. I found the example.

Does this mean that JCA message exchanges are not persisted as
activeMQ-based JMS messages in persistent queues, or just that
transactions are journalled independent of message exchanges?


Transaction  "metadata"  are stored by the TransactionManager using
howl.  Then each transactional resource  must be able to store
its own data at prepare time.  So, yes, they are both stored
separately.

Terry




--
Cheers,
Guillaume Nodet

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