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

[Kito Mann]

On Thu, Jan 13, 2011 at 11:52 PM, asmirnov <asmirnov at exadel.com> wrote:

> Different developers expect the diffirent behavior :-).
> For me, that's helpful sometime as the way to reset


Sure, it's helpful, but it seems awfully counter-intuitive. It's one of
those things that annoy people about JSF -- nuances they don't expect.
Logically I might expect null to be the result that clears the view scope
state as opposed to the actual navigation outcome.

I think at the very least a context parameter for the JSF servlet would
help.

Since this behavior is currently in the spec,

> 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
> >>
> >>
> >>
> >>
> >>
> >>
> >
> >
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/jsr-314-open-mirror/attachments/20110114/f8dced9b/attachment-0002.html