Hi Lenny

Thank you for your reply.
Unfortunately I'm in a very tight schedule and wont be able to test
your solution, but on future developments of this project I'll have it in
consideration.


Cheers
Paulo Ricardo


On Tue, Jan 17, 2012 at 2:36 PM, Lenny Primak <lpri...@hope.nyc.ny.us>wrote:

> There is a general issue with Tapestry and AJAX & Expired sessions.
> The issue and a solution is described (2nd try!) here:
> http://code.google.com/p/flowlogix/wiki/TLAJAXAnnotation
> On Jan 17, 2012, at 7:02 AM, Paulo Ricardo Ribeiro wrote:
>
> > Hi Thiago
> >
> > I wasn't sure where I should post, sorry :)
> >
> >
> > So, now, in the correct mailing list, with the code :)
> >
> >
> > on my tml I have:
> >
> > <select class="input" t:id="keySets" t:type="ck/BeanSelect"
> > t:list="listaKeySets" t:zone="result" t:value="keyset"
> > t:labelField="literal:contextmark" t:valueField="literal:keysetid"
> > t:blankLabel="Seleccione" t:required="true"
> > t:blankOption="literal:AUTO">
> > </select>
> >
> > <div t:type="zone" t:id="result" id="result" class="section result"
> > t:inPlace="true">
> >
> > ...
> >
> > </div>
> >
> > on the java side, I have:
> >
> > public Object onValueChangedFromKeySets(Object sel2) {
> >
> > this.setSelectedTypes(new HashSet<String>());
> > if (sel2 == null) {
> > this.eid = null;
> > this.keyset = null;
> > } else {
> > Keyset ks = (Keyset) sel2;
> > this.eid = ks.getElement().getEid();
> > this.keyset = ks;
> > }
> > return result.getBody();
> > }
> >
> >
> > This code uses the BeanSelect from chenillekit.
> > When the session is OK, the encoder is not null. It only becomes null
> when
> > the session has expired (eg timeout) and the user tries to change the
> > selected value.
> >
> >
> >
> > Abraço :)
> > Paulo Ricardo
> >
> >
> >
> > ---------- Forwarded message ----------
> > From: Thiago H. de Paula Figueiredo <thiag...@gmail.com>
> > Date: Tue, Jan 17, 2012 at 11:35 AM
> > Subject: Re: Select throws NullPointerException
> > To: Tapestry development <d...@tapestry.apache.org>, Paulo Ricardo
> Ribeiro <
> > paulo.rica...@gmail.com>
> >
> >
> > On Tue, 17 Jan 2012 08:47:11 -0200, Paulo Ricardo Ribeiro <
> > paulo.rica...@gmail.com> wrote:
> >
> > Hello,
> >>
> >
> > Bão? :)
> >
> >
> > I'm using tapestry 5.3.1.
> >>
> >> Using a select with the zone parameter, if the session timeout has been
> >> reached and the user changed the selected value, I was getting a
> >> NullPointerException, so, I've downloaded the source, and looked at the
> >> Select.java (tapestry-core) and noticed that the "this.encoder" on the
> >> following method, was null:
> >> protected Object toValue(String submittedValue)
> >>   {
> >>       return InternalUtils.isBlank(**submittedValue) ? null :
> >> this.encoder.toValue(**submittedValue);
> >>   }
> >>
> >
> > You seem to be providing a null value to the encode parameter, which
> would
> > be an error. As always, please post the code, otherwise we can't know
> > what's really going on.
> >
> > By the way, please post in the users mailing list first before posting in
> > dev, as you didn't know yet if it was an user or Tapestry error. ;)
> >
> > --
> > Thiago H. de Paula Figueiredo
> > Independent Java, Apache Tapestry 5 and Hibernate consultant, developer,
> > and instructor
> > Owner, Ars Machina Tecnologia da Informação Ltda.
> > http://www.arsmachina.com.br
>
>
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