[JBoss-user] [Messaging, JMS & JBossMQ] - Pattern for getting status of MDB's job

[patrick_ibg <do-...@jb...>]

I'm relatively new to EJB, esp. MDBs.

I looked at Bill Burke's Consumer/Producer example, and noticed that status is held in static public fields of a SLSB ("TestStatusBean"), which is looked up by the client via JNDI.

Is there a cleaner pattern to do this that can also work for multiple client calls to the same MDB? Could I simply keep status info as part of the MDB's state, and return it via business methods (similar to SFSB)?

Also, how can I setup an MDB such that it operates as a singleton and consumes only one message at a time?

Thanks in advance...


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