I would like to clarify something, I did not even read that spec. I just noticed the "span" attribute that allowed me to specifiy days, weeks, months, etc instead of converting what the meaning of your max-age tag to milliseconds or whatnot. That's all. I didn't mean for us to use ttl as it was meant on that so called spec. I should have been more clear on this.
Elias On 8/18/05, James M Snell <[EMAIL PROTECTED]> wrote: > > Ugh... let's try to avoid even mentioning RSS3. > > According to the RSS 2.0 spec, the ttl specifies a "a number of minutes > that indicates how long a channel can be cached before refreshing from > the source." What the spec does not indicate is the number of minutes > from when? The moment the feed was last pulled? The moment specified by > pubDate? Further, the ttl element is specifically designed for cache > control and provide no semantics over when the metadata content of the > item expires -- only over when a the RSS feed should be polled again. > In contrast, the Expires extension is explicitly NOT for cache-control > and MUST NOT be used for scheduling when the feed should be polled > again; it's sole purpose is to define expiration semantics for metadata > content. The max-age element provides the same basic function as ttl > only at a finer grain (miliseconds vs. seconds/minutes/etc) and with > less ambiguity (e.g. it is calculated from the moment specified in > atom:updated). > > - James > > Elias Torres wrote: > > >I tried commenting on your site, but I have to register to comment. :-( > > > >You linked to RSS3 [1] and I spotted something related to this > >extension that could be used instead. > > > ><ttl span="days">7</ttl> > > > >It seems more elegant than having to convert to whatever you specified > >in your spec. > > > >Just a thought. > > > >Elias > > > > > >[1] http://www.rss3.org/rss3lite.html > > > >On 8/17/05, James M Snell <[EMAIL PROTECTED]> wrote: > > > > > >>http://www.ietf.org/internet-drafts/draft-snell-atompub-feed-expires-00.txt > >> > >>Example: > >> > >><entry> > >> ... > >> <t:expires xmlns:t="...">2005-08-16T12:00:00Z</t:expires> > >> ... > >></entry> > >> > >>or > >> > >><entry> > >> ... > >> <updated>2005-08-16T12:00:00Z</updated> > >> <t:max-age>20000</t:max-age> > >> ... > >></entry> > >> > >>This is not to be used for caching of Atom documents; nor is it to be > >>used as a mechanism for scheduling updates of local copies of Atom > >>documents. > >> > >>- James > >> > >> > >> > >> > > > > > > > >
