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mqget node help

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sumitk.pandey

Posted: Wed Dec 07, 2011 6:15 am Post subject: mqget node help

Newbie

Joined: 07 Dec 2011
Posts: 3

Hi All
I have created a flow
mqInput->mqGet->fileOutput
using this I am geting the the name of queue for mqGet node dynamicaly
and thus writing the message of this queue in a file but using this i able to write only the top message from the queue into the file.
My question is how i can write all the messages from the queue into the file.

mqjeff

Posted: Wed Dec 07, 2011 6:22 am Post subject:

Grand Master

Joined: 25 Jun 2008
Posts: 17447

By calling the MQGet node more than once in the same flow.

Or by calling the MQInput node more than once.

sumitk.pandey

Posted: Wed Dec 07, 2011 6:52 am Post subject:

Newbie

Joined: 07 Dec 2011
Posts: 3

mqjeff wrote:

By calling the MQGet node more than once in the same flow.

Or by calling the MQInput node more than once.

But then how I will decide that how many time the MQGET node is to be call because the depth of the queue from data is to be browse is unknown.

mqjeff

Posted: Wed Dec 07, 2011 6:54 am Post subject:

Grand Master

Joined: 25 Jun 2008
Posts: 17447

sumitk.pandey wrote:

mqjeff wrote:

By calling the MQGet node more than once in the same flow.

Or by calling the MQInput node more than once.

But then how I will decide that how many time the MQGET node is to be call because the depth of the queue from data is to be browse is unknown.

Ah!

You make this decision by being a programmer.

McueMart

Posted: Wed Dec 07, 2011 7:18 am Post subject:

Chevalier

Joined: 29 Nov 2011
Posts: 490
Location: UK...somewhere

One piece of advice is NOT to simply connect the Output node of the MQGET (or any downstream processing) back to the input of the MQGET. This will rapidly lead you into the hellish world of stack overflow issues.

zpat

Posted: Wed Dec 07, 2011 7:26 am Post subject:

Jedi Council

Joined: 19 May 2001
Posts: 5866
Location: UK

This has been covered many times here, for example:

http://www.mqseries.net/phpBB2/viewtopic.php?t=58201&highlight=mqget+loop

http://www.mqseries.net/phpBB2/viewtopic.php?t=50115&highlight=mget+loop

inMo

Posted: Tue Dec 13, 2011 12:52 pm Post subject:

Master

Joined: 27 Jun 2009
Posts: 216
Location: NY

If you read about the MQGET NODE, you might come across something describing how it behaves when it doesn't find any messages. Perhaps it is different from it's behavior when it finds a message?

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