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Subject: [ebxml-msg] Re: Comments on the 1.09 about MessageOrder


On Fri, 30 Nov 2001 09:12:58 -0500
Martin W Sachs <mwsachs@us.ibm.com> wrote:
> Shimamura-san,
> You said:
>   P. 49, Line 2009.
>     The MessageOrder element MUST be used with the duplicateElimination
>     attribute set to true.
> These words require using MessageOrder whenever duplicateElimination used.
> I do not believe that messageOrder should be required when using
> duplicateElimination.  I suggest that the words be:
>    The value of the duplicateElimination attribute MUST be set to "true"
>    when the value of the messageOrderSemantics attribute is set to
>    "guaranteed".

I agree. So my proposal for the line, considering the Doug Bunting's
comments too, should be revised as following:

  - P. 49, Line 2009 should be deleted.
  - Insert following sentences after line 2016.

        When the value of the messageOrderSemantics attribute is set to
        "guaranteed", delivery behavior Once-and-Only-Once MUST be used.
        In the specification, the Once-and-Only-Once delivery behavior
        means that two conditions below are satisfied at same time:

        1) No lost message by one of following two mechanisms
            - Reliable messaging described in "7.5 ebXML Reliable
              Messaging Protocol". It means that the messages includes
              AckRequested element or Acknowledgment element.
            - Reliable communication protocol
        2) No duplicate message by the mechanism described in "7.5.6
           Duplicate Message Handling". It means that
           duplicateElimination attribute is set to true.


SHIMAMURA Masayoshi <shima.masa@jp.fujitsu.com>
TEL:+81-45-476-4590(ext.7128-4241)  FAX:+81-45-476-4726(ext.7128-6783)
Planning Dep., Strategic Planning Div., Software Group, FUJITSU LIMITED

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