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From mickhayes <>
Subject Re: What are the official default JMSheader fields? "Group" and "Sequence" ?
Date Tue, 27 Mar 2012 09:05:28 GMT
Group and Sequence are not header fields in the standard.

If you have a look at the Standard, , you
can see the header fields described in Section 3.4.

The ten JMS 1.1 standard headers are as you listed, no more and no less.

Section 3.5 describes Message Properties, and 3.5.9  JMS Defined Properties.

You can find Group and Sequence standardised here:

"JMSXGroupID and JMSXGroupSeq are standard properties clients should use if 
they want to group messages. All providers must support them"

>From Table 3.3:

JMSXGroupID *String, *Client: The identity of the message group 
this message is part of

JMSXGroupSeq *int, *Client: The sequence number of this 
message within the group; the first 
message is 1, the second 2,...

Michael Hayes B.Sc. (NUI), M.Sc. (DCU), SCSA SCNA 

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