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Re: Actually, you don't need COPY or MOVE, what you really seem to want is CLONE.

From: Jim Amsden <jamsden@us.ibm.com>
Date: Tue, 19 Jun 2001 10:34:46 -0400
To: ietf-dav-versioning@w3.org
Message-ID: <OFD26D1C6D.400E60AB-ON85256A70.004F32E3@raleigh.ibm.com>
I guess I agree with John. This sort of information is generally kept in 
comments or application specific properties. The question we have to ask 
ourselves is if there is any need to have precursor information available 
in an interoperable way. I don't know off the top of my head any other 
system that supports this, but it could be something I just never used.

I also agree with Geoff in that there are good arguments either way. 
However I'd lean in the direction of leaving things out if there is any 
doubt. They can always be added in later when we have more experience and 
the use cases are more crisp. We don't want to hold up the protocol on 
such issues either if we can help it.

I still can't see where it is useful to know about two different version
histories, one that you have poor information on (the source of the
COPY) and an old version history that is no longer relevent to the
actual content (since you overlayed it).

> -----Original Message-----
> From: ietf-dav-versioning-request@w3.org 
> [mailto:ietf-dav-versioning-request@w3.org] On Behalf Of John Hall
> Sent: Monday, June 18, 2001 8:30 PM
> To: 'Rick Rupp'; ietf-dav-versioning@w3.org
> Subject: RE: [ietf-dav-versioning] <none>
> I disagree.
> I see no difference between creating a new version from 
> scratch and copying data from somewhere else to create a new 
> version from scratch. If I open file1 and then do a save-as 
> on file2, the server doesn't know and precussor isn't set in 
> any case.  So why is it so important to know that someone 
> grabbed a copy of file1's current version and copied it to 
> file2 without editing it first?  If you really want the 
> version history, use MOVE not COPY.
> Do you have a 'for example' use case where that origin 
> information is valuable?  And would it still remain valuable 
> after a few more edits were done?
> > -----Original Message-----
> > From: ietf-dav-versioning-request@w3.org
> > [mailto:ietf-dav-versioning-request@w3.org] On Behalf Of Rick Rupp
> > Sent: Monday, June 18, 2001 5:39 PM
> > To: ietf-dav-versioning@w3.org
> > Subject: [ietf-dav-versioning] <none>
> > 
> > 
> > The precursor-set property seems to be an important concept
> > of a versions 
> > history. Without it there is no indication that a version has a 
> > relationship to another version history.
> > 
> > I don't think it will be unusual for a client to create a new
> > version by 
> > copying from a different version history. Will it be 
> > important to know the 
> > new version came from a different version history? I think 
> > the answer is 
> > yes and the precursor-set facilitates this.
> > 
> > 
> > 
Received on Tuesday, 19 June 2001 10:34:56 UTC

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