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Re: ETags

From: Greg Stein <gstein@lyra.org>
Date: Thu, 17 Feb 2000 12:18:43 -0800 (PST)
To: WebDAV WG <w3c-dist-auth@w3.org>
Message-ID: <Pine.LNX.4.10.10002171216230.578-100000@nebula.lyra.org>
Sounds good. Maybe we can include in the 2518 update language something
like this:

"Adding, changing, or removing a property MAY alter the
DAV:getlastmodified property."

In other words, don't rely on it happening, but also don't rely on it NOT
happening.

(note that I don't discriminate between live/dead props)

Cheers,
-g

> -----Original Message-----
> From: Clemm, Geoff [mailto:gclemm@rational.com]
> Sent: Wednesday, February 16, 2000 7:56 PM
> To: w3c-dist-auth@w3.org
> Subject: [Moderator Action] RE: ETags
> 
> 
> A good reason to not change the etag or mod-date when a property changes
> is that a property is often information about the resource, as opposed to
> "being" the resource.  If I mark a resource as being "tested", I don't want
> it to appear that the resource has changed (thus making it look like I need
> to test it again).
> A less compelling reason (but still a consideration) is to achieve
> consistency
> between dead and live properties.  You certainly don't want a change to the
> "last access time" of a resource to modify the etag or "modification time"
> of
> that resource.
> Add to this the fact that current implementations appear to not modify the
> etag or
> modification time when a dead property is modified, and I think we have a
> pretty
> case that neither the etag value nor the modification time should
> be changed when a dead property is updated.
> 
> Cheers,
> Geoff
> 
> > -----Original Message-----
> > From: Kevin Wiggen [mailto:wiggs@xythos.com]
> > Sent: Wednesday, February 16, 2000 4:12 AM
> > To: w3c-dist-auth@w3.org
> > Subject: ETags
> > 
> > 
> > 
> > I searched the spec and could not find any special details on handling
> > ETags.
> > 
> > Should an ETag value be updated when a dead property is 
> > changed?  On the
> > same note, do most servers update the last-modified-date when a dead
> > property is changed?  Does Webdav want to take a stand one 
> > way or another?
> > 
> > 
> > Curious,
> > Kevin
> > 
> 

-- 
Greg Stein, http://www.lyra.org/
Received on Thursday, 17 February 2000 15:17:09 GMT

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