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MQSeries.net Forum Index » IBM MQ Java / JMS » How to force a backout condition ?

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iceage
PostPosted: Tue Jan 24, 2012 9:09 am    Post subject: How to force a backout condition ? Reply with quote

Acolyte

Joined: 12 Apr 2006
Posts: 68
Need to simulate backout condition for JMS pub/sub application , i am aware of ways to acheive that outside of JMS (set MQMD.Backoutcount on the MQPUT) , but with JMS JMS_DELIVERY_COUNT property seem to be read-only to cater to JMS specification . Correct me if am wrong here.

There are not many places with in app to make it fail after message is consumed by JMS application , so looking to send a 'backed out' message ..

How does any of you simulate this or suggest some ideas to acheive if at all with in JMS API? (or do i have to resort to techniques of sending backed out message outside of JMS)
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zpat
PostPosted: Tue Jan 24, 2012 10:07 am    Post subject: Reply with quote

Jedi Council

Joined: 19 May 2001
Posts: 5866
Location: UK
I am not sure you can set MQMD.Back, but anyway I would get a message in a transacted session and then back it out.
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mqjeff
PostPosted: Tue Jan 24, 2012 10:55 am    Post subject: Reply with quote

Grand Master

Joined: 25 Jun 2008
Posts: 17447
Presumably you're trying to back out a message received by a subscriber?

Rather than, somehow, backing out a message that is being published...

Just throw an exception until the message is backed out?
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