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Subject: Re: [ws-rx] i125


Paul Fremantle wrote:
> I've been looking again at 125 - (i125 Protocol precondition requires 
> knowledge of policies
> http://docs.oasis-open.org/ws-rx/issues/ReliableMessagingIssues.xml#i125).
> 
> Firstly, I think this is a leftover from when the spec allowed an RMS to
> start a sequence without a CS/CSR. If you look at the March 2003 spec,
> where that is possible, it has this precondition in it.
> 
> Note that the preconditions are "prior to the processing of the initial
> sequenced message".
> 
> So I propose that we replace the current pre-conditions with this:
> 
> The correct operation of the protocol requires that a number of
> preconditions MUST be established prior to the processing of the initial
> sequenced message:
> * For any single message exchange the RM Source MUST have an endpoint
> reference that uniquely identifies the RM Destination endpoint.
> * The RM Source MUST have successfully created a Sequence with the RM
> Destination.
> * The RM Source MUST be capable of formulating messages that adhere to
> the RM Destination's policies.

I think this is an improvement over what we have. I certainly like the 
wording above, which talks about 'formulating messages that adhere to 
the RM destination's policies' rather than a blanket: RMS must know 
RMD's policies.

> * If a secure exchange of messages is required, then the RM Source and RM
> Destination MUST have a security context.
> 


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