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Re: Creating a Null-resource

From: Alan Kent <ajk@mds.rmit.edu.au>
Date: Mon, 6 Aug 2001 15:43:57 +1000
To: WebDAV <w3c-dist-auth@w3.org>
Message-ID: <20010806154357.L22662@io.mds.rmit.edu.au>
On Mon, Aug 06, 2001 at 10:13:27AM +0530, Medha Atré wrote:
> Hello,
> I read RFC 2518, but I am not very clear about how to actually create a
> Null-Resource using available client APIs like HTTP::WebDAV (Perl) or Neon
> (C) ?
> Can anybody explain that to me ?
> Thanks and Regards.
> Medha

A few people actually dislike the term 'null resource'. There is no
resource of type 'null' that is ever created.  Basically a 'null resource'
means there is no resource. So you cannot create them. Any URI not
currently bound to a resource is said to refer to a 'null resource'.
A better way of describing it is that the URI is unmapped or unbound.

I could imaging the terminology came about from the concept of having a
variable in a programming language of type 'resource' that is null
rather than pointing to a resource object.

Bottom line: there is no API to create null resources because null
resources are not resources. The phase "null resource" really means
"there is no resource".


ps: I guess you could then argue that DELETE can create null
resources! :-) :-) :-)
Received on Monday, 6 August 2001 01:44:40 UTC

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