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Re: accessingCollections: postpone due to lack of design/implementation experience?

From: James Cerra <jfcst24_public@yahoo.com>
Date: Wed, 9 Mar 2005 16:07:42 -0800 (PST)
Message-ID: <20050310000742.25509.qmail@web42207.mail.yahoo.com>
To: public-rdf-dawg@w3.org

> While the lack of support for accessing collections has been
> noted in various places, we didn't identify it as a requirement
> (or even an objective) in http://www.w3.org/TR/rdf-dawg-uc/ .
> If anybody now thinks it's a v1 requirement, speak now or
> forever hold your peace.

Yes yes yes yes yes!  This should be a v1 requirement!  One large omission from
the spec is how to handle collections and containers.  Say I have:

] _:xyz rdf:type rdf:Bag .
] _:xyz _:1 <uri1>
] _:xyz _:2 <uri2>
] _:xyz _:3 <uri3>

Say I want the resources in the bag.  Do I query with:

] select ?uri
] where (?bag rdf:type rdf:Bag)
]       (?bag ?number ?uri)

Would I get back the table:

] --------
] | uri  |
] --------
] | uri1 |
] --------
] | uri2 |
] --------
] | uri3 |
] --------

That seems like a waste of a namespace (?number).  And I don't even know how a
collection would be easily queried.  And suggestions?






	
		
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Received on Thursday, 10 March 2005 00:08:14 GMT

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