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Re: ISSUE-81 (resource vs representation)

From: Julian Reschke <julian.reschke@gmx.de>
Date: Wed, 07 Oct 2009 20:20:18 +0200
Message-ID: <4ACCDBE2.4090002@gmx.de>
To: Aryeh Gregor <Simetrical+w3c@gmail.com>
CC: Larry Masinter <masinter@adobe.com>, Ian Hickson <ian@hixie.ch>, HTMLWG WG <public-html@w3.org>
Aryeh Gregor wrote:
> ...
>> But of course servers can expose the same resource under many more names
>> that differ just in the path or query component (for instance, consider a
>> server that servers files from the file system, and the file system supports
>> hard links). In those cases the same resource will appear with different
>> path values.
> 
> Is there any practical difference between a case where two URLs
> represent the same resource, and a case where two URLs represent
> different resources that happen to have identical representations in
> more or less every circumstance?  (But perhaps not quite *every*
> circumstance, maybe due to hitting internal length limits somewhere,
> or whatever -- so they can't be the *same* resource.)
> ...

Yes. For instance, when applying a PUT to one URL will also affect the 
representations returned by the other.

The concept of "sameness" depends on context, and what you want to do 
with these resources.

BR, Julian
Received on Wednesday, 7 October 2009 18:21:00 UTC

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