[Web-SIG] and now for something completely different!
mike_mp at zzzcomputing.com
Thu Aug 18 04:33:09 CEST 2005
On Aug 17, 2005, at 6:49 PM, Phillip J. Eby wrote:
> That really hasn't been my experience. Partly, this is because I
> tend to use RESTful approaches that put 99% of all statefulness in
> the browser. For example, if I have a multi-page form, I embed all
> the previous pages' data as hidden fields on the subsequent pages.
> The entire form is processed by a single validation routine, so it
> doesn't matter what the client sends or in what order, because as
> soon as all the data is both present and valid, the form is done.
> Similarly, the vast majority of UI flow is easiest to model as URL-
> per-state, so that the browser is in charge of the flow, and the
> back button works.
its usually not my experience either, and I have rarely written any
kind of app that uses sessions. 99% of everything I've done relies
upon browser state as well. although despite my being there "when
the web was won" in 95, I am hesitant to call myself a RESTFUL
developer...to me, REST seems to be taking some common sense ideas
and turning them into some kind of rigid ideological crusade, which
is just as bad as all the other ideological crusades we "web winners"
had to fight with IIS and active server pages, EJB, UML, SOAP, etc.
the app i work on is a document mangement system where users have to
edit large sets of fields, and do alot of reloading in order to load
in new sections of the document or save various subsets of data. Its
been running and being expanded regularly for several years, and it
does it all using client-state only, but it has begun to outgrow that
approach; it would be much more succinctly written storing the user's
current workspace within something that at least conceptually is a
"session". it would also allow popups, IFRAMES and future Ajax
controls to all access the same user-workspace without having to
a document editing system is also a good example of where objects
need to be persisted in two different scopes, i.e. a session-scope as
well as a permanent scope. I dont really think a session has
anything to do with a "physical three-tiered model". physically, it
can be whereever you want. i just think its advantageous from a
conceptual point of view.
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