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From: Jose (jmalv04_at_[hidden])
Date: 2006-09-14 16:19:46


sorry, this is what happens for not reading in detail

On 9/14/06, Giovanni Piero Deretta <gpderetta_at_[hidden]> wrote:
>
> On 9/14/06, Jose <jmalv04_at_[hidden]> wrote:
> > On 9/14/06, Giovanni Piero Deretta <gpderetta_at_[hidden]> wrote:
> > >
> > > > Interaction-Safe State for the Web
> > > >
> > >
> http://www.cs.brown.edu/~sk/Publications/Papers/Published/mk-int-safe-state-web/
> >
> >
> > just a quote from section 8.2
> > =========
> > Another solution to this problem [22 - back button] relies on one-shot
> > continuations [3].
> > These continuations detect when they are invoked a second time and
> produce a
> >
> > suitable error. ....
> > However,this strategy cannot be used to implement the shopping cart
> example
> > without
> > severe transformation of the source program to propagate the called?
> binding
> > to each
> > code fragment that binds URLs.
> > =========
> >
>
> Your association of this text with 'back button' is wrong. The text
> actually refers to non-idempotent URL handling (while the
> bibliography reference is a generic web continuation paper):
> >From the beginning of section 8.3 (not 8.2):
> _______________________
> [...] A sub-problem of [disabling old urls] has been ad-
> dressed by work targeted at preventing the duplication of non-
> idempotent requests. The Post-Redirect-Get pattern [10] is one strategy
> [...]
> Another solution [22] to this problem relies on one-shot con-
> tinuations [3]. These continuations detect when they are invoked a
> second time and produce a suitable error. [...]
> _________________________
>
> --
> Giovanni P. Deretta
>
>
> --
> Giovanni P. Deretta
> _______________________________________________
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