Re: DAV:revisions property for a workspace resource

From: jamsden@us.ibm.com
Date: Tue, Apr 18 2000

  • Next message: Edgar Schwarz: "Re: DAV:revisions property for a workspace resource"

    From: jamsden@us.ibm.com
    To: ietf-dav-versioning@w3.org
    Message-ID: <852568C5.0049903F.00@d54mta03.raleigh.ibm.com>
    Date: Tue, 18 Apr 2000 09:23:25 -0400
    Subject: Re: DAV:revisions property for a workspace resource
    
    
    
    
    
    Edgar,
    Go ahead and implement versioned collections! I didn't mean it would be
    hard for you, just some of the rest of us :-)
    
    > <jra>
    > There was talk in the original WebDAV spec a couple of years ago to send
    > deltas. Unfortunately, this is resource type dependent, and difficult to
    > put in the protocol without requiring changes to the protocol standard to
    > support new resource types. Clearly this is unacceptable. It is also not
    > clear that this optimization is required given the level of traffic and
    > frequency of updates in an authoring environment.
    > </jra>
    Why do you need a new resource type ? There are very simple byte based
    delta descriptions which would be shorter in any case than PUTing
    the whole new version and doing a checkin afterwards.
    Just send the data as application/octet-stream and you are done.
    <jra>
    You don't need a new resource type for the deltas, but the server has to
    calculate the deltas. Its this calculation that is different for each
    resource type. So introducing a new resource type would require a change to
    the Delta-V spec to include how the deltas are transmaitted for that type.
    </jra>