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>