- From: Jos De_Roo <jos.deroo@agfa.com>
- Date: Fri, 13 Jun 2003 01:34:20 +0200
- To: joshuaa@microsoft.com
- Cc: www-rdf-interest@w3.org, www-rdf-interest-request@w3.org
Well, you can always say
<http://www.foo.com/subject> <http://some.org/contributors>
<http://your.org/collection> .
and find out later that
<http://your.org/collection> <http://www.w3.org/2002/07/owl#sameAs>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#nil> .
hope this helps...
--
Jos De Roo, AGFA http://www.agfa.com/w3c/jdroo/
"Joshua Allen"
<joshuaa@microsoft.co To: Jos De_Roo/AMDUS/MOR/Agfa-NV/BE/BAYER@AGFA
m> cc: <www-rdf-interest@w3.org>
Sent by: Subject: RE: N-Triples for empty collection?
www-rdf-interest-requ
est@w3.org
2003-06-12 08:00 PM
I was afraid it would be the latter. It seems a bit inconsistent for
the URI of a collection to have to change depending on whether or not it
has members (or looking another way, it's impossible to assign your own
identity to a list that has no members). But I can live with it.
Thanks,
Joshua
-----Original Message-----
From: Jos De_Roo [mailto:jos.deroo@agfa.com]
Sent: Thursday, June 12, 2003 2:30 AM
To: Jos De_Roo
Cc: Joshua Allen; www-rdf-interest@w3.org;
www-rdf-interest-request@w3.org
Subject: Re: N-Triples for empty collection?
oops... you also need <> around the uri's
--
Jos De Roo, AGFA http://www.agfa.com/w3c/jdroo/
Jos De_Roo
To: "Joshua Allen"
<joshuaa@microsoft.com>@AGFASMTP
2003-06-12 cc:
www-rdf-interest@w3.org, www-rdf-interest-request@w3.org
11:18 AM Subject: Re: N-Triples for
empty collection?(Document link: Jos
De_Roo)
http://www.w3.org/1999/02/22-rdf-syntax-ns#nil denotes the
empty list so it's the latter.
the middle one is saying that the empty list (as an individual)
is a contributor (of course, you could have meant that ;-)
and the former is similar, although there could be other
contributors.
--
Jos De Roo, AGFA http://www.agfa.com/w3c/jdroo/
PS it's rdf:rest instead of rdf:last
and the object of rdf:rest is a list
"Joshua Allen"
<joshuaa@microsoft.co To:
<www-rdf-interest@w3.org>
m> cc:
Sent by: Subject: N-Triples
for empty collection?
www-rdf-interest-requ
est@w3.org
2003-06-12 08:40 AM
I am sure this is spec'd at
http://www.w3.org/TR/rdf-syntax-grammar/#parseTypeCollectionPropertyElt,
but I am having trouble understanding how to store an empty collection.
Which of the below three n-triples examples is correct? Or if none,
what
would be correct for what I'm trying to do here?
Thanks!
Joshua
I am assuming something like:
http://www.foo.com/subject http://some.org/contributors _:genid1 .
_:genid1 http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/1999/02/22-rdf-syntax-ns#List .
_:genid1 http://www.w3.org/1999/02/22-rdf-syntax-ns#first
http://www.w3.org/1999/02/22-rdf-syntax-ns#nil .
The above is really what I want, but I could understand if there were
some
other convention. For example, the following would be understandable:
http://www.foo.com/subject http://some.org/contributors _:genid1 .
_:genid1 http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/1999/02/22-rdf-syntax-ns#List .
_:genid1 http://www.w3.org/1999/02/22-rdf-syntax-ns#first
http://www.w3.org/1999/02/22-rdf-syntax-ns#nil .
_:genid1 http://www.w3.org/1999/02/22-rdf-syntax-ns#last
http://www.w3.org/1999/02/22-rdf-syntax-ns#nil .
And so would (although annoying):
http://www.foo.com/subject http://some.org/contributors
http://www.w3.org/1999/02/22-rdf-syntax-ns#nil .
Received on Thursday, 12 June 2003 19:35:15 UTC