Pattern for getting status of MDB's job

[patrick_ibg]

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...

[oglueck]

wasn't JMX made for this purpose?

[patrick_ibg]

I was more interested in controlling the flow of application logic, but if you're saying JMX can help me out with that, I guess I'll look into it.

[adrian.brock]

http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossHelp
FAQ

[patrick_ibg]

Apologies...

It's just that I'm using EJB3, but I really haven't seen much info on EJB3 style usage of MDBs (i.e., avoiding xml config descriptors) on the EJB3 Forums and Wiki, so I thought this might be the proper forum.