URL's for specific revisions

Tim Ellison OTT (Tim_Ellison@oti.com)
Tue, 05 Oct 1999 16:37:28 -0400


From: Tim_Ellison@oti.com (Tim Ellison OTT)
To: ietf-dav-versioning@w3.org (ietf-dav-versioning)
Message-ID: <1999Oct05.163500.1250.1342681@otismtp.ott.oti.com>
Date: Tue, 05 Oct 1999 16:37:28 -0400
Subject: URL's for specific revisions


I propose that we define the URL to a specific revision to be:

revision_URL = history_resource_URL "/" <revision_identifier>

Since history resources are non-versionable resources, the 
history_resource_URL is not subject to selection rules.

This means that clients can 'globally' use a revision_URL to refer to a 
specific versioned resource revision.

[Since the spec is quiet about where history resources are stored in the 
namespace, I offer the following examples assuming that the server chooses 
to store history resources as /history/<versioned_resource_id>,
then:
    revision_URL = /history/<versioned_resource_id>/<revision_identifier>]

For example:
          http://foo.com/history/res23/rev42
          http://foo.com/history/res81/rev1

further, if a revision is a collection, then 'slashing though' it would be 
allowed, and subject to the regular Target-Selection procedure, for 
versioned collections,

for example (assume res23 is a collection)
     http://foo.com/history/res23/rev42/member1/index.html

This would make revisions members of a history resource rather than 
properties.

Tim