[jsr-314-open] ViewScoped severe bug or expected behavior?

[Werner Punz]

Ok thanks for clearing this up. I guess I was too close to codi in my
thinking here
which keeps the state and does not care about the outcome redirects etc...
It is not a bug then but a feature :-)



Werner


On Wed, Jan 19, 2011 at 9:30 AM, Martin Marinschek
<mmarinschek at apache.org>wrote:

> Well, whatever you do (and Leonardo is right here) it should behave
> the same for the view state and the associated map (cause bindings
> might reside in it).
>
> And: the behaviour is like this for a long time already. We would be
> breaking existing apps if we change this (some people rely on this
> different meaning, even though I myself never did - I found this to
> subtle to rely on it ;)
>
> best regards,
>
> Martin
>
> On 1/14/11, Werner Punz <werner.punz at gmail.com> wrote:
> > I dont think a reset should be done over a navigation case, a reset is
> > clearly triggered by an api function.
> > A ViewScope from my point of view should retain its state as long as it
> is
> > in the same viewId no matter
> > how the navigation case triggers, it should only clear itself up in this
> > stage if you issue a manual clearing command one way or the other.
> >
> > Werner
> >
> > On Fri, Jan 14, 2011 at 5:52 AM, asmirnov <asmirnov at exadel.com> wrote:
> >
> >> Different developers expect the diffirent behavior :-).
> >> For me, that's helpful sometime as the way to reset page scope
> variables.
> >> On Jan 12, 2011, at 1:22 PM, Ted Goddard wrote:
> >>
> >> >
> >> > I agree, losing the ViewMap upon navigation back to the same view
> >> > doesn't
> >> make
> >> > sense.  Earlier discussion was divided (see messages with the
> following
> >> subject line):
> >> >
> >> > [jsr-314-eg] navigation to same viewId
> >> >
> >> > So we've added a feature into ICEfaces whereby @ViewRetained beans are
> >> > propagated across the ViewMap when such navigation occurs.
> >> >
> >> > Ted.
> >> >
> >> > On 2011-01-12, at 11:01 AM, Kito Mann wrote:
> >> >
> >> >> Werner, did you ever get a response about this?
> >> >> ---
> >> >> Kito D. Mann | twitter: kito99 | Author, JSF in Action
> >> >> Virtua, Inc. | http://www.virtua.com | JSF/Java EE training and
> >> consulting
> >> >> http://www.JSFCentral.com - JavaServer Faces FAQ, news, and info |
> >> twitter: jsfcentral
> >> >> +1 203-404-4848 x3
> >> >>
> >> >> See you at JAX and JSF Summit 2010 June 20-23rd in San Jose:
> >> http://jaxconf.com/
> >> >>
> >> >>
> >> >>
> >> >> On Mon, Dec 20, 2010 at 6:23 AM, Werner Punz <werner.punz at gmail.com>
> >> wrote:
> >> >> Hi I ran into following issue while doing some testing on MyFaces and
> >> after testing it on Mojarra I noticed that Mojarra behaves the same. So
> I
> >> am
> >> not sure if this is a bug or expected behavior. Hence I am posting it
> >> here.
> >> >>
> >> >> Following usecase.
> >> >> a Page with a managed bean as page controller which is ViewScoped.
> >> >>
> >> >> Now the page keeps some data which is serialized per definition on
> the
> >> scope.
> >> >> An action is triggered from the page which then issues an implicit
> >> navigation case onto itself.
> >> >>
> >> >> Now what happens on both implementations is, that the ViewScoped bean
> >> >> is
> >> dropped and the data is lost.
> >> >>
> >> >> This is easily reproducable with the case in the attachments.
> >> >> As you can see the value is initially set to another value by the
> >> postConstruct and then once the action is triggered it is reset to the
> >> initial value, although it should
> >> >> have been restored to the last value which was present before issuing
> >> the action onto itself.
> >> >>
> >> >> I could reproduce this behavior on MyFaces 2.0.3 and on Mojarra. Any
> >> ideas if this is a bug or expected behavior? Because from a logical
> point
> >> of
> >> view
> >> >> a nav case should not retire the view scope if it hits the same page
> >> again no matter if a redirect is in between if it is implicit or
> explicit
> >> or
> >> if it is just
> >> >> a null restore case.
> >> >>
> >> >>
> >> >> Werner
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >> >>
> >> >
> >> >
> >>
> >>
> >
>
>
> --
>
> http://www.irian.at
>
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