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Re: 404 Re: Comments on the Triple Patterns Fragments draft

From: Andreas Kuckartz <a.kuckartz@ping.de>
Date: 30 Jul 2014 11:34:25 +0200
Message-ID: <53D8BC21.7040800@ping.de>
To: "Ruben Verborgh" <ruben.verborgh@ugent.be>
Cc: public-hydra@w3.org
Ruben Verborgh:
>> "The 4xx (Client Error) class of status code indicates that the client
>> seems to have erred."
>> http://tools.ietf.org/html/rfc7231#section-6.5
>>
>> An empty page or fragment is (normally) not a result of an error. Any
>> 4xx code therefore is (normally) inappropriate.
> 
> Depends on how you look at it.
> 
> Client: "Give me the fragment with selector ?x rdf:type ex:Alien."
> Server: "You asked for something that didn't exist. That's an error."
> 
> In other words, 4xx errors are those that only a client can fix.
> And indeed, the client can fix by asking a different fragment.

Well, I think that it is perfectly legitimate and not erroneous to ask a
server to provide a set of all aliens.

And in this concrete case the server very likely _can_ provide a
non-empty set by using improved SETI techniques !

Cheers,
Andreas
Received on Wednesday, 30 July 2014 09:34:53 UTC

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