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Re: Legal operations on members of a Baseline Collection...

From: Tim Ellison <Tim_Ellison@uk.ibm.com>
Date: Thu, 27 Sep 2001 14:27:44 +0100
To: ietf-dav-versioning@w3.org
Message-ID: <OF6CA6AB07.B5FCFF61-ON80256AD4.0049B8E2@portsmouth.uk.ibm.com>

Yes, all modifications to the baseline collection are illegal -- in many
implementations the collection will be a 'virtual' reflection of the
contents of the baseline.  Clearly there is already the mechanism within
DAV to disallow these methods (e.g., supported method set) but calling them
regular version-controlled resources is misleading -- they are in no way
'regular'.

Regards,

Tim Ellison
Java Technology Centre, MP146
IBM UK Laboratory, Hursley Park, Winchester, UK. SO21 2JN
tel: +44 (0)1962 819872  internal: 249872  MOBx: 270452


                                                                                                             
                    Peter Raymond                                                                            
                    <Peter.Raymond@merant.co       To:     ietf-dav-versioning@w3.org                        
                    m>                             cc:                                                       
                    Sent by:                       Subject:     Legal operations on members of a Baseline    
                    ietf-dav-versioning-requ        Collection...                                            
                    est@w3.org                                                                               
                                                                                                             
                                                                                                             
                    2001-09-27 10:42 AM                                                                      
                    Please respond to Peter                                                                  
                    Raymond                                                                                  
                                                                                                             
                                                                                                             






Hi,

The Baseline Collection captures the state of resources that were in the
Baseline-Controlled Collection when the Baseline was created or when the
Version-Controlled Configuration checked-in.
In my opinion the resources in the Baseline Collection should be frozen
(since they just capture state), but, the specification only seems to
disallow CHECKOUT of a member of this collection.

Section 12.11 defines (in precondition
DAV:must-not-update-baseline-collection)
that CHECKOUT cannot be done on a member of a Baseline Collection.
Shouldn't
other operations, eg COPY, MOVE, PUT, DELETE, PROPPATCH also be prevented
on
members of a baseline collection?

If these methods can be done on members of the baseline collection then
the baseline is not stable and can be changed without checking out the
Version-Controlled Configuration...this seems odd....

Regards,
--
Peter Raymond - MERANT
Principal Architect (PVCS)
Tel: +44 (0)1727 813362
Fax: +44 (0)1727 869804
mailto:Peter.Raymond@merant.com
WWW: http://www.merant.com
Received on Thursday, 27 September 2001 09:33:14 GMT

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