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RE: Issue: PROP_ATTR

From: Jim Amsden <jamsden@us.ibm.com>
Date: Fri, 13 Apr 2001 16:27:03 -0400
To: w3c-dist-auth@w3c.org
Message-ID: <OFF794C16E.DF559326-ON85256A2D.00701D96@raleigh.ibm.com>
I agree that all attributes should be stored on the property value, but the
DAV:prop element belongs to WebDAV, and WebDAV should define its attributes
as well as content. We should keep attributes off the property name except
those defined by the protocol. Clients should be able to put whatever they
want on the value however they want. And servers should feel free to store
them any way they want.



                                                                                                                 
                    "Clemm, Geoff"                                                                               
                    <gclemm@Rational.C       To:     WebDAV WG <w3c-dist-auth@w3.org>                            
                    om>                      cc:                                                                 
                    Sent by:                 Subject:     RE: Issue: PROP_ATTR                                   
                    w3c-dist-auth-requ                                                                           
                    est@w3.org                                                                                   
                                                                                                                 
                                                                                                                 
                    04/13/2001 02:34                                                                             
                    PM                                                                                           
                                                                                                                 
                                                                                                                 



For dead properties, I don't see the issue wrt storing attribute values
for the root element.  If you are storing attributes on all the nested
elements (as I believe everyone has agreed), it should be trivial
to store it on the root element as well.

For live properties, where the server can take advantage of its knowledge
of the value space for the live property values, then I agree that it
could be an issue.

So I still prefer saying MUST on all attributes of dead properties,
and "as specified in the property definition" for live properties.

Cheers,
Geoff

-----Original Message-----
From: Kevin Wiggen [mailto:wiggs@wiggenout.com]
Sent: Friday, April 13, 2001 12:02 PM
To: Greg Stein; WebDAV WG
Subject: RE: Issue: PROP_ATTR



I agree with Greg et all that "attr2" needs to be stored.

I believe that allowing "attr1" could lead to some interop problems, or we
need to spec this out a little better:

<D:prop>
  <theprop attr1="foo"/>
  <theprop attr1="bar"/>
  <theprop attr2="fee"/>
</D:prop>

Is that legal?  Does the attribute make the property unique?  Does simply
the value of an attribute make it unique?  Or do we (like xmllang) simply
store one set of attributes for a property?

Also how does one use Dasl with attributes on properties?

I would like to see attributes on the property name not be supported.

Kevin

-----Original Message-----
From: w3c-dist-auth-request@w3.org
[mailto:w3c-dist-auth-request@w3.org]On Behalf Of Greg Stein
Sent: Wednesday, April 11, 2001 1:06 AM
To: WebDAV WG
Subject: Re: Issue: PROP_ATTR


The question isn't about attributes in general, it is about *which*
attributes. Consider the following:

  <D:prop>
    <theprop attr1="foo">
      thevalue
      <subelem attr2="bar"/>
    </myprop>
  </D:prop>

I believe everybody would agree that attr2 gets stored. The real question
is
about attr1. I see that attribute as part of the element that *names* a
property, but it isn't part of the property *value*.

IMO, PROP_ATTR is about defining the boundary between property naming, and
a
property's value.

Cheers,
-g

On Tue, Apr 10, 2001 at 10:58:21PM -0700, Eric Sedlar wrote:
> I agree.  There is no reason not to persist attributes.
>
> > -----Original Message-----
> > From: w3c-dist-auth-request@w3.org
> > [mailto:w3c-dist-auth-request@w3.org]On Behalf Of Mark A. Hale
> > Sent: Tuesday, April 10, 2001 6:29 PM
> > To: WebDAV WG
> > Subject: RE: Issue: PROP_ATTR
> >
> >
> > Jim:  Thanks for getting the issues list started.
> >
> > I believe that WebDAV must permit properties to have attributes.
> > As you've
> > pointed out, RDF and PRISM do use them extensively.  A server can
reformat
> > the attributes in a subsequent PROPFIND request.  Attrbiutes should be
> > persistent.
> >
> >        Thanks,
> >
> >        Mark
> >
> >
> >
> >
> > > -----Original Message-----
> > > From: w3c-dist-auth-request@w3.org
> > > [mailto:w3c-dist-auth-request@w3.org]On Behalf Of Jim Whitehead
> > > Sent: Tuesday, April 10, 2001 5:54 PM
> > > To: WebDAV WG
> > > Subject: Issue: PROP_ATTR
> > >
> > >
> > > As mentioned in a previous post, now is the time to start
> > resolving issues
> > > on the RFC 2518 issues list.  As fate would have it, the first
> > > issue on the
> > > list is one that has been contentious in the past. Can we come to
> > > consensus
> > > on it now?
> > >
> > > Issue: PROP_ATTR
> > >
> > > Description:
> > >
> > > What is a WebDAV server required to do with XML attributes other than
> > > xml:lang submitted with a PROPPATCH?  This affects how well
> > WebDAV will be
> > > able to support RDF, since RDF uses attributes extensively.
> > >
> > > Greg Stein originally raised this issue:
> > >
> > >
http://lists.w3.org/Archives/Public/w3c-dist-auth/1998OctDec/0089.html
> > >
> > > See also:
> > >
> > >
http://lists.w3.org/Archives/Public/w3c-dist-auth/1998OctDec/0092.html
> > >
http://lists.w3.org/Archives/Public/w3c-dist-auth/1998OctDec/0094.html
> > >
http://lists.w3.org/Archives/Public/w3c-dist-auth/1998OctDec/0095.html
> > >
> > >
> > >
> > >
> > >
> >
> >

--
Greg Stein, http://www.lyra.org/
Received on Friday, 13 April 2001 16:38:49 GMT

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