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MQSeries.net Forum Index » IBM MQ Java / JMS » MQ Message Roll back

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nz1g9j
PostPosted: Thu Jun 28, 2007 7:16 am    Post subject: MQ Message Roll back Reply with quote

Newbie

Joined: 02 Jun 2007
Posts: 7
Location: Detroit
How do I roll back MQ message after catching an exception. Here is the code snippet.
Even after throwing the exception the message is showing up in the queue.

Your help is greatly appreciated.

private SessionContext ctx

try{



// QueueSender.send(textMessage);



// throw null pointer exception for testing rollback



}catch(Exception e){

ctx.setRollbackOnly();

}
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Vitor
PostPosted: Thu Jun 28, 2007 7:19 am    Post subject: Re: MQ Message Roll back Reply with quote

Grand High Poobah

Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
nz1g9j wrote:
How do I roll back MQ message after catching an exception. Here is the code snippet.
Even after throwing the exception the message is showing up in the queue.


Where, presumably it's been rolled back after the application reading it off abended?

The backout queue on the local queue definition (if that's what you're referring to) is not honoured by a base queue manager; your application should include code to use it once it reads a message with a backout count higher than the threshold.

Note that software like WMB does honour the queue within it's MQInput node, but this is a specifically coded function.
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