Re: Re: Announcing Xaja, a PHP Reverse Ajax framework

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On 7/13/07, Robert Cummings <robert@xxxxxxxxxxxxx> wrote:
This isn't possible since you can't request a connection to the client's
machine. Only the other way around.

hmm...  in that case perhaps the open connection could be employed and
the feature used selectively; only on certain pages for instance ?
im thinking mainly of a monitoring page; like an app that shows a servers
state,
or stock quotes or something.
the main reason i dont like a javascript timer refreshing the page is
sometimes you
dont want the whole page refreshed; especially when halfway through filling
out a
form on the page ;)

-nathan

On 7/13/07, Robert Cummings <robert@xxxxxxxxxxxxx> wrote:

On Fri, 2007-07-13 at 14:59 -0400, Nathan Nobbe wrote:
> > On 7/13/07, Robert Cummings <robert@xxxxxxxxxxxxx> wrote:
> > I haven't looked at the code for Xaja and in no way do I want to
> > subtract from its potential, but I'm going to guess that in some way
> it
> > holds the HTTP connection open and as such is an expensive feature.
> > Also, I'm not entirely sure, but isn't that the principle that
> Comet
> > uses?
>
> As i said ive only imagined such a feature.  In my imagination i
> wonder if it is possible to
> track the clients address in a data structure within the application.
> Then a connection could be
> established whenever a push was needed.

This isn't possible since you can't request a connection to the client's
machine. Only the other way around.

>   I also think the app would have to track the last page
> a user requested in order to realize such an implementation.  This
> *should* be feasible using
> sessions because whenever the client makes a new request the last page
> variable could be updated.
> I havent seen nor heard of Comet; would you mind providing a link?

http://ajaxian.com/archives/comet-a-new-approach-to-ajax-applications

Cheers,
Rob.
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