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| MQRFH2 Header Utility |
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| keenlearner |
 Posted: Thu Oct 05, 2006 10:42 pm Post subject: MQRFH2 Header Utility |
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Acolyte
Joined: 24 Aug 2006
Posts: 62
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Hi Guys
I have very a basic question. I want to understand the basic utility of the MQRFH2 header. Why this header is used for?
One Reason is we give the publish/subscribe command in psc folder.
other than this what is the excat utility can anyone explain me please.
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| sarat |
| Posted: Thu Oct 05, 2006 11:15 pm Post subject: |
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Centurion
Joined: 29 Jun 2005
Posts: 136
Location: India
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Hi,
If you want to store the application specific information then u can use MQRFH2 Header. If you want to store ur back end data or anything....In pub/sub also ur storing the application specific information in psc folder.
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Sarat. |
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| jefflowrey |
| Posted: Fri Oct 06, 2006 1:50 am Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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The MQ Rules and Formatter Header version 2 is designed to hold information about a message (meta data) that can be used for making decisions about the message - where to send it and how to format or process it.
For a basic example, the MQRFH2 can hold a Message Domain and Message Type and etc. that will override the vales of those properties on an MQInput node. So when Message Broker reads a message, it will use those to decide what Domain, parser and model to use to turn the message into a logical message tree.
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| fjb_saper |
| Posted: Fri Oct 06, 2006 3:00 am Post subject: |
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Grand High Poobah
Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY
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The header is also designed to hold the custom properties of the JMS message in it's usr folder. The Using Java manual has a map of how the regular properties interact with the MQRFH header.
Enjoy 
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