W3C home > Mailing lists > Public > public-ws-addressing@w3.org > October 2005

Re: Now that the train has left the station ...

From: David Hull <dmh@tibco.com>
Date: Wed, 12 Oct 2005 16:13:09 -0400
To: Mark Nottingham <mark.nottingham@bea.com>
Cc: "public-ws-addressing@w3.org" <public-ws-addressing@w3.org>
Message-id: <434D6E55.7050307@tibco.com>
Mark Nottingham wrote:

> My recollection was that this was covered, at least tangentally, at 
> the F2F; to stretch your metaphor, someone wearing black might not be 
> a student at that institution, but if they wear something that's 
> black and has the crest of the university, they probably are. 
> Similarly, while the presence of the Action *property* doesn't mean 
> much, the header we define has a more restricted semantic; if you 
> don't want people to infer that you have addressing engaged, you can 
> still populate the property with another mechanism (e.g., a header 
> with a different QName).

Sure, but I tend to think that argument holds for /any/ wsa: header. 
Put another way, I don't see how the non-defaulting-and-required-ness of
[action] makes it any more significant as a signal that WSA was intended.

> Cheers,
> On 11/10/2005, at 3:57 PM, David Hull wrote:
>> ... I think I finally put my finger on the other reason I don't like
>> about keying "WSA is engaged" off of [action] instead of any wsa: 
>> header.
>> As I understand it, the reasoning is that, since [action] is required
>> and non-defaulting (and, as it happens, the only such), its presence
>> indicates that the intent was to to engage WSA.  But the  implication is
>> backwards.  Intending to engage WSA implies wsa:Action (as it  happens),
>> but not vice versa.  The students at the Aveda institute downstairs of
>> our office are evidently required to wear all-black, but wearing
>> all-black does not imply that one is studying cosmetology (one might
>> instead be playing rugby for New Zealand, or one might just like 
>> black).
>> Be that as it may, I accept that the issue is settled.
> -- 
> Mark Nottingham   Principal Technologist
> Office of the CTO   BEA Systems
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Received on Wednesday, 12 October 2005 20:13:19 UTC

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