XCAP-Diff

1
XCAP-Diff

• Jonathan Rosenberg
• Cisco Systems

2
Changes

• Split into two documents
• Draft-ietf-simple-xcap-diff wrapper format that
  contains etags and document URI, extensible to
  indicate what changes
• This is all that is needed for -08 xcap
• May not need this at all.
• Draft-rosenberg-simple-xcap-change-log
• Specifies changes to xcap document
• Fixes problem Jari pointed out about XML wrapping
  and CDATA based on XML directorate input

3
Results from XML-Patch

• Will be using patch-ops for xcap-diff
• But still want to separate the change parts from
  the etag wrapper if needed
• Plan of attack
• Discard draft-rosenberg-simple-change-log now
  only insurance in case W3C or others puke on
  patch-ops
• XCAP-diff to use patch-ops again
• As a future extension if we need a separate shim
  still

4
Extending XCAP-Diff

• Approach I
• ltxsany nsother/gt - there now
• Requires two namespaces once extended
• Need to mandate patch-ops else have a negotiation
  mechanism for change format
• Approach II
• Revise schema itself and include patch-ops
  directly as children using chameleon namespace

• Proposal
• If we agreed to xcap change proposal, do approach
  II no schema revision required, just hold
  xcap-diff till done
• If we didnt agree, do approach I