Re: Extending Target-Selector

From: jamsden@us.ibm.com
Date: Thu, Mar 09 2000

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    From: jamsden@us.ibm.com
    To: ietf-dav-versioning@w3.org
    Message-ID: <8525689D.00743067.00@d54mta03.raleigh.ibm.com>
    Date: Thu, 9 Mar 2000 16:08:59 -0500
    Subject: Re: Extending Target-Selector
    
    
    
    
    
    Tim,
    Good catch. I think the solution must be to extend the DAV:link and href
    elements in all returned entity response bodies to include the revision
    selected. This is part of the identifier for the resource and must be
    included. The effect on other WebDAV methods must include this issue.
    |------------------------+------------------------>
    |                        |   Tim Ellison/OTT/OTI  |
    |                        |   <Tim_Ellison@oti.com>|
    |                        |   Sent by:             |
    |                        |   ietf-dav-versioning-r|
    |                        |   equest@w3.org        |
    |                        |                        |
    |                        |   03/09/2000 12:52 PM  |
    |                        |                        |
    |------------------------+------------------------>
      >------------------------|
      |                        |
      |           To:          |
      |   ietf-dav-versioning@w|
      |   3.org                |
      |           cc:          |
      |           Subject:     |
      |   Re: Extending        |
      |   Target-Selector      |
      >------------------------|
    
    
    
    
    
    
    
    I still maintain that it is strange to get a result back from a depth
    infinity operation where the target selector was specified by both a
    Workspace: and Revision-Selector: header.
    The resulting URLs of the 'children' cannot be used as-is since there is no
    combination of Workspace: and Revision-Selection: that will get you to the
    same point.
    
    For example,
    PROPFIND depth infinty on /foo/bar, where foo is resolved in Workspace W1,
    and bar is resolved by Revision-Selection: 'mylabel'.
    
    If the answer comes back you have /foo/bar/cow -- what use is that? since
    if I ask for /foo/bar/cow with workspace W1 and revision-selector 'mylabel'
    now 'bar' is selected by the workspace and in general will be different to
    the one selected by the 'mylabel'.
    
    
    Tim
    ----------------
    
    From: Tim_Ellison@oti.com (Tim Ellison OTT)
    To: ietf-dav-versioning@w3.org ('Delta V')
    Message-ID: <2000Mar01.160400.1250.1494398@otismtp.ott.oti.com>
    Date: Wed, 01 Mar 2000 16:04:37 -0500
    Subject: Extending Target-Selector
    
    
    Do we expect depth infinity operations to return stable URLs or 'users'
    URLs.
    
    For example, PROPFIND depth infinity would be difficult to decode if the
    URLs were all stable URLs--so I'll assume that they are user URLs in the
    response.
    
    Now if you extend Target-Selector to be:
        All-But-Leaf-Selector: and
        Leaf-Selector:
    (we can argue about the names :-)
    How do you interpret the results?  Do the deep URLs conform to the same
    All-But-Leaf-Selector: and Leaf-Selector: selection?  That's confusing
    since
    the request-url used to have a leaf at the end, but in the deep operations
    it's segments are all 'all-but-leaf' segments.  If the dep URLs don't
    conform tot he same selection criteria what do they conform to?
    
    Tim