Hi Ryan,
On Nov 27, 2005, at 9:20 AM, Ryan King wrote:
However, my hypothesis is that you can also implement "push" as
"lazy pull."
I'm pretty sure I've seen this hypothesis proven already.
I know Rohit proposed it a while ago, as Roy alludes to here:
http://groups.yahoo.com/group/rest-discuss/message/5266
I'm just not (yet) sure of how generally applicable that is.
Yeah, that sort of thing. Basically, any scenario where the
client wants 'instant' notification. The main advantage over
polling is that it requires much less use of network resources.
That said, it does hold a connection on the server, which consumes
server resources. On the other hand, I still suspect the overall
impact is less than if the server had to implement 'true' push
(vs. this, what, "pseudo-push").
There's one little problem with using this in browsers- most (I
think) browsers will constantly look like its loading a page, which
can be quite unsettling to users.
Well, that's why I wanted to implement this within AHAH. Last I
checked, browsers don't notice if XMLHTTPRequests are pending.
-- Ernie P.
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