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Need help understanding onMessage

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HondaAccord

Posted: Thu Apr 24, 2008 12:49 pm Post subject: Need help understanding onMessage

Novice

Joined: 02 Apr 2008
Posts: 14

I need to perform a phase 1 commit or rollback from within an onMessage statement.

How do you mark the onMessage to act transactionally (The way I use it it apparently just performs a destructive GET on a QUEUE.

COuld someone show me a code example of a Phase I rollback from within an onMessage method ?

fjb_saper

Posted: Thu Apr 24, 2008 2:17 pm Post subject:

Grand High Poobah

Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY

There is no code difference in J2EE.

The MDB descriptor determines transactionality.

In order to roll back you have then to raise the proper exception.

If you are in a standalone app you need to do your own session management and have the MQ session transacted and available to the onMessage method in your class (reachable).
You then control commit or rollback with the session object.

Enjoy

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