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Check message from MQGet

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kash3338

Posted: Sat May 21, 2011 4:33 am Post subject: Check message from MQGet

Shaman

Joined: 08 Feb 2009
Posts: 709
Location: Chennai, India

Hi,

What is the best way to check if I get a message from the Out terminal or the NoMessage terminal of a MQGet node?

Option-1: Check the Cardinality of the Input message for 0 or less.
Option-2: Check the FIELDVALUE or FIELDTYPE to be NULL.

Which option is better or Is there any other better solution to check this?

smdavies99

Posted: Sat May 21, 2011 7:43 am Post subject:

Jedi Council

Joined: 10 Feb 2003
Posts: 6076
Location: Somewhere over the Rainbow this side of Never-never land.

Are you connecting both terminals to the same Compute node Input Terminal?
From your question, my giess is yes.

You could add an intermediate node on the No Message side to put something in the Local Environment or Root or Environment. This should be the rarer condition. There won't be an overall performance hit unless you make the MQGET Timeout very small.

Back to your tests.
There are numerous posts here about testing for the existance of a field.
I'd probably check the value of a field in the expected message with another value (one that you would never see in a million years) using the CARDINALITY function.
_________________
WMQ User since 1999
MQSI/WBI/WMB/'Thingy' User since 2002
Linux user since 1995

Every time you reinvent the wheel the more square it gets (anon). If in doubt think and investigate before you ask silly questions.

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