Jubin Zawar wrote:
>
> Hi,
>
> I am not an expert in EJB2.0 yet, but what I would strongly suggest is some
> enhancements in the handling of message-driven beans.
> But please folks, tell me if I am wrong with some propositions, because they
> might go against what Sun intended to do.
>
> Well, so far I don't understand why these features are not supported for
> message-driven beans :
>
> 1) dynamic selector for topic/queue which it listens to
> 2) multiple selectors (yeah I know, if we want an MDB listen to several
> topics, why dont we just group these topics into one ? and yes, I can group
> 100 organisationally seperated topics in my application into just one,
> holding thousands of messages - but then : what arguments are there against
> allowing multiple subscriptions ? and multiple changeable subscriptions at
> runtime ??)
Multiple subscriptions for a single MDB are reasonable, but note that it
is possible to have multiple MDBs specified in your JAR file all referring
to the same bean class.
Allowing subscriptions to be changed at run-time would require an MDB
administrative API to be standardized. If you can live with proprietary admin
APIs, what you requested is possible with Sybase EAServer and presumably
other servers as well.
________________________________________________________________________________
Evan Ireland Sybase EAServer Engineering [EMAIL PROTECTED]
Wellington, New Zealand +64 4 934-5856
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