Heath,
I tried your solution #1, and I keep getting the same result
as in my previous post, ie: the redirect or dispatch calls are ignored
and jsf tries to render the current jsp. I scanned the specs, as suggested,
but found nothing (that I understood) which explains the current behaviour.
Is there really no way to take control over naviagation in JSF and return a
specific page ?
I'm surprised, I would have thought that most applications would have to deal with
this dilemma. JSF, being what it is with the BBean pattern, I would have thought
that most apps would load data from the backend via BB constructors and have to
handle errors there when something went wrong on the backend....
I believe that setting up an error page via web.xml will have to do, unfortunately.
Thanks for your help !
Mark
-----Message d'origine-----
De : Heath Borders [mailto:[EMAIL PROTECTED]]
Envoy� : vendredi 3 d�cembre 2004 15:07
� : MyFaces Discussion
Objet : Re: Error handling & redirecting from BB constructor possible ?
Well, this should work. Look at the JSF 1.1 API for further details, but here are some things that could be going wrong:
1. FacesContext.getCurrentInstance().getExternalContext().redirect(String)
already called FacesContext.responseComplete(), so you don't need to call FacesContext.renderResponse(), though this shouldn't matter 2. FacesContext.getCurrentInstance().getExternalContext().redirect(String)
needs the absolute URI you are redirecting to. If you provide the wrong URI, I don't know what will happen.
If you're still dead set against using
FacesContext.getCurrentInstance().getExternalContext().redirect(String)
you could just set up an error page in your web.xml for the exception, though this may not be optimal.
On Fri, 3 Dec 2004 14:48:07 -0500, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
>
>
> Heath,
>
> I tried this also (but forgot to mention), followed by
> "FacesContext.getCurrentInstance().responseComplete()"
> but the request keeps processing the same jsp & the redirect never happens.
>
> Is there any other way to handle errors inside BB constructor ?
> In other words, I would expect most apps to have to deal with this...
>
>
>
>
>
> -----Message d'origine-----
> De : Heath Borders [mailto:[EMAIL PROTECTED]] Envoy� : vendredi
> 3 d�cembre 2004 14:22 � : MyFaces Discussion Objet : Re: Error
> handling & redirecting from BB constructor possible ?
>
>
>
> Call
> FacesContext.getCurrentInstance().getExternalContext().redirect(String
> )
>
>
> On Fri, 3 Dec 2004 13:24:13 -0500, [EMAIL PROTECTED]
> <[EMAIL PROTECTED]> wrote:
> >
> > Does anybody know how to go about redirecting to an error page from
> > the constructor of a backing bean.
> >
> > For example:
> >
> > class BBean
> > {
> > Data someData;
> >
> > public BBean ()
> > {
> > try
> > {
> > someData = getData();
> > }
> > catch(Throwable t)
> > {
> > // What is the code here to redirect to an error page ?
> > }
> > }
> >
> > ....
> > }
> >
> > I tried using
> > FacesContext.getCurrentInstance().getExternalContext().dispatch("err
> > or .jsp"); but I got a response already rendered error.
> >
> > Thanks
> >
> > Mark
>
>
> --
> If you don't have a GMail account, I probably have 5 invites. Just ask!
> -Heath Borders-Wing
> [EMAIL PROTECTED]
--
If you don't have a GMail account, I probably have 5 invites. Just ask!
-Heath Borders-Wing
[EMAIL PROTECTED]
