[standards-jig] Pub/Sub Explanation

Adam Theo theo at theoretic.com
Tue Apr 16 18:32:23 UTC 2002


DJ Adams wrote:
> On Tue, Apr 16, 2002 at 11:59:52AM -0500, Peter Saint-Andre wrote:
> 
> 
>>[...]
>>we have pure pull, pure push, or hybrid depends on what kind of data
>>is being published. Think of a simple pub/sub system for weblogs. I
>>could be notified when your blog changes and then I have to pull down
>>the URL for your latest story. I could be notified when your blog changes
>>but also receive an abstract of the story, thus helping me decide if I
>>[...] 
> 
> 
>>Well, those are just random thoughts, hopefully someone finds them of use.
> 
> 
> Sure!
> 
> In fact, I've experimented with both scenarios (a payload-less) event
> type scenario (that's what we're doing with Radio right now), and a
> publish scenario with Peerkat, where the whole item is published.

Here's a thought, although probably already known and just implied so 
far. It seems that JNG's "tradition" was starting to be is the 
payload-less option, where the client has to actively decide to get 
extra info, instead of that info being sent to them automatically. How 
about we have those three (or more?) options (payload-less, abstract, 
and payload-inline) and force the client to ask for a certain one when 
they subscribe? Payload-less would be the default. But this would keep 
things simple, and allow all the functionality.

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