Re: FYI: Feed History extension

A related issue came up in the Media RSS group.  Yahoo wanted an 
'archive' element to signify that a feed was either complete or partial, 
partial meaning that there were entries not included in the feed.  The 
purpose was to be able to retrieve (and publish) a complete copy of the 
feed.  The main difference between their proposal and yours was that 
there were two feed documents -- a current view of the feed with a 
partial collection of entries and an archive view with a complete 
collection.

If your fh:prev element allowed the archive to be complete, meaning that 
it includes both previous entries and entries in the current feed, then 
these proposals would be almost the same.

The fh:stateful element seems redundant.  My reading is that you can 
safely infer that a feed is stateful when you see an fn:prev element -- 
are there situations where that's not true?

Mark Nottingham wrote:

>I've put together the draft announced below as a way to allow feeds'
>history to be 
>reconstructed; e.g., if Scripting News supported this (by adding one
>tag to the feed and 
>archived feed headers), you could track Dave's writings back to the
>very beginning, 
>automatically.
>
>Note that it's submitted to the Atom WG, but it's equally applicable
>to RSS; there are RSS 
>examples, and there shouldn't be any overhead or problem.
>
>I've modified my blog feed to demonstrate it:
>  http://www.mnot.net/blog/index.rdf
>
>Comments and suggestions much appreciated,
>
>[[[
>A New Internet-Draft is available from the on-line Internet-Drafts
>directories.
>
>
>        Title           : Feed History: Enabling Stateful Syndication
>        Author(s)       : M. Nottingham
>        Filename        : draft-nottingham-atompub-feed-history-01.txt
>        Pages           : 10
>        Date            : 2005-7-1
>        
>This document specifies mechanisms that allow feed publishers to give
>   hints about the nature of the feed's statefulness, and a means of
>   retrieving "missed" entries from a stateful feed.
>
>A URL for this Internet-Draft is:
>http://www.ietf.org/internet-drafts/draft-nottingh
>am-atompub-feed-history-01.txt
>
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>]]]
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