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RE: i028: Implications of the presence of ReplyTo

From: Brinild <brinild@yahoo.com>
Date: Fri, 12 Nov 2004 05:25:29 -0800 (PST)
Message-ID: <20041112132529.65303.qmail@web61106.mail.yahoo.com>
To: public-ws-addressing@w3.org

In principle I agree.  However, as I stated in
another note, some of the definition text
for EPRs, such as FaulTo, would seem to imply that
the sender can control what it expects to
receive based on the presence or absence of
certain headers.  Perhaps it might be best if
these implications were not there?

--- Savas Parastatidis
<Savas.Parastatidis@newcastle.ac.uk> wrote:

> 
> > 
> > --- Martin Gudgin <mgudgin@microsoft.com> wrote:
> > >...And I don't think MEP semantics
> > > should be inferred from the presence/absence of
> wsa:
> > > headers ( although
> > > the set of such headers could be infered, or
> even
> > > explicitly stated, for
> > > a given MEP ).
> > 
> > Too bad.  The idea of having a self-describing
> soap
> > envelope has its appeal.  Also, knowing if its a
> > request/
> > response MEP by looking at the message can
> eliminate
> > some ambiguity; for example in cases where there
> are
> > two port-types with the same operation, one as a
> > request/response and one as a one-way.
> 
> Why would a message tell us whether it's part of a
> particular MEP or
> not? Couldn't the same message be part of multiple
> MEPs based on the
> semantics of a protocol, of a larger message-based
> interaction?
> 
> When you see a letter in real life, you don't know
> from its envelope
> whether a reply should be sent. You know that if a
> reply is sent where
> it should go (if that information is captured) but
> you'll have to read
> the contents of the letter to figure out whether a
> reply is needed. And
> it may be the case that only the ultimate recipient
> (e.g. the service
> logic) will be able to make such a decision.
> 
> Regards,
> .savas. 
> 
> 
> 


=====
Brinild@yahoo.com
http://brinild.blogspot.com


		
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Received on Friday, 12 November 2004 13:26:01 GMT

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