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MQSeries.net Forum Index » IBM MQ Java / JMS » Why even use an RFH2 header?

Why even use an RFH2 header?

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bamboozled_by_MQ

Posted: Sun Oct 17, 2004 8:49 pm Post subject: Why even use an RFH2 header?

Voyager

Joined: 07 Jan 2004
Posts: 75

why is the MQRFH2 header neccessary?

why if it was a message coming from native MQ to a JMS provider?

what are other scenarios?

plz give me an example of a case you would need it

thanx

jefflowrey

Posted: Mon Oct 18, 2004 5:35 am Post subject:

Grand Poobah

Joined: 16 Oct 2002
Posts: 19981

It's not necessary.

It is used to pass a variety of meta-data about the message, mainly for purposes of Rules and Formatting.

So, if for instance I have some meta-data that controls how a message should be routed through my system, then it is a good practice to put that information into a known header like the RFH, rather than constructing my own meta-data header and using it.

JMS uses the MQRFH to store "properties" that do not exist in the MQMD, and pass those around.

Pub/Sub uses the MQRFH to include topic information, as well as to create publish and subscribe commands.
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