Hi!
Andrzej Jan Taramina wrote:
> Actually I do not believe you are correct in this.....to be a JMS
> Message producer you need to have an open JMS Session. Session's
> implement Runnable and usually start a separate thread for their JMS
> operations when you create one. This means that an EJB cannot
> create a JMS Session...and without one you cannot do any message
> production.
That is incorrect. As long as it is not the EJB doing the actual new
Thread() call the restriction can be worked around (by doing it in the
JMS implementation, and giving the JMS implementation the proper
permissions).
The only times the restrictions are "hard" is when it is the actual
beans that are doing the actual calls requiring the restricted
permissions.
This is what I have been saying from the beginning. Do you believe this
to be incorrect? If so, why?
> Just like with message consumers, I belive you would have to build
> external proxies for both message sending and production because of
> this.
The acquired JMS session is itself a kind of a proxy, so no surrounding
abstraction is needed.
> Not worth the effort since the next EJB spec will integrate JMS
> functionality and allow EJBeans to be both message producers and
> consumers. I believe the current thinking on the integration is that the
> container would supply the "proxies" to the core JMS functionality on
> behalf of the beans, so the restriction on use of threads in EJBeans will
> not be restricted.
Providing proxies to the JMS implementation seems unnecessary, as there
are no restrictions on the actions available to the underlying JMS
implementation. Can you outline why they are needed?
/Rickard
--
Rickard �berg
@home: +46 13 177937
Email: [EMAIL PROTECTED]
Homepage: http://www-und.ida.liu.se/~ricob684
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