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From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?=
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Newsgroups: comp.lang.ada
Subject: Re: Annoucing memcache-ada 0.1
Date: Mon, 17 Jan 2011 12:07:30 +0100
Organization: Ada @ Home
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Date: 2011-01-17T12:07:30+01:00
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Le Mon, 17 Jan 2011 11:40:12 +0100, Simon Wright <simon@pushface.org> a =
 =

=C3=A9crit:
> Using AJAX, there is certainly state within one page... but even
> excluding that, there clearly _is_ per-session state on the server; of=

> course, the browser has to identify the session concerned before the
> server can know where to continue from.
I see your point, you are right too. I lacked some precision: this depen=
ds  =

on the involved functionality. If you are serving pages whose access  =

requires some right (like browsing a private forum), then it just requir=
es  =

a cession state, and the server is able to hold it. On the other hand,  =

richer web applications (the ones I was implicitly referring too),  =

requires a state stored in the page, or at least a reference to a state =
 =

for that page. If the user hit the Back button, any request made from th=
at  =

page will have to send the state associated with that previous page.  =

Imagine a user clicking a Submit button in a page retrieved from the  =

browser cache he/she reached after hitting Back in the browser; then  =

imagine he/she already click this button before he came back to it (this=
  =

is a typical case of error if the server handles the second request with=
  =

the sate associated to the last requested page).

So this depends on what kind of process is involved.


-- =

Si les chats miaulent et font autant de vocalises bizarres, c=E2=80=99es=
t pas pour  =

les chiens.

=E2=80=9CI am fluent in ASCII=E2=80=9D [Warren 2010]