- From: Lisa Dusseault <lisa@xythos.com>
- Date: Thu, 22 Mar 2001 15:07:50 -0800
- To: "Jim Amsden" <jamsden@us.ibm.com>, <ietf-dav-versioning@w3.org>
- Message-ID: <HPELJFCBPHIPBEJDHKGKGEBBCCAA.lisa@xythos.com>
That's impossible. Many clients won't show properties that they're not aware of. C.F. Web Folders. lisa -----Original Message----- From: ietf-dav-versioning-request@w3.org [mailto:ietf-dav-versioning-request@w3.org]On Behalf Of Jim Amsden Sent: Thursday, March 22, 2001 2:42 PM To: ietf-dav-versioning@w3.org Subject: Re: DAV:lockdiscovery on a checked-out resource Steve, If UserA does a CHECKOUT, the resource won't be locked, it will just be checked out. PROPFIND on DAV:lockdiscovery won't show any locks to anyone. Now UserB doesn't know anything about versioning. If UserB just looks for locks and upon not finding any assumes the resource is writable, the write will fail because the resource is already checked out. LOCK will also fail for the same reason, it tries to do an implicit checkout. We assume that versioning unaware clients are not DAV unaware. That is, they can use PROPFIND and look at properties, including properties that indicate something is checked out. Its actually the user that's interperting this information, not the client. The client doesn't have to support any versioning specific protocol to access these properties. Although such clients make their users do extra work. I guess I wasn't too clear... UserA performs a CHECKOUT on a VCR. UserB performs a PROPFIND of DAV:lockdiscovery to determine if the resource is "locked" (since the client is versioning unaware, ie only a class 2 DAV client) What will DAV:lockdiscovery be? If UserB's client is unaware of the DAV:checked-out property, then how will they know it is "locked"? Thanks, Steve
Received on Thursday, 22 March 2001 18:20:24 UTC