It's always important to take a deep breath and carefully read to the
bottom of the exception stack. You'll see a NPE there, inside your
code.
On 6/2/06, Rui Pacheco <[EMAIL PROTECTED]> wrote:
Hi again
Yes, exactly what Jesse said. After hitting my head against the wall for two
hours I realized I was not initializing my model inside that listener.
On 6/2/06, Jesse Kuhnert <[EMAIL PROTECTED]> wrote:
>
> Perhaps a message sort of like "source is null" for expression blah blah?
>
> On 6/1/06, Bryan Lewis <[EMAIL PROTECTED]> wrote:
> >
> > Hard to say without seeing the java code and page spec. It looks like
> > the page class should have a property "model" that's returned by a
> > getModel() method. (That's the object you're calling the bean?) I'm
> > guessing you should have something like:
> >
> > public abstract class MyPage ... {
> > public abstract MyBean getModel();
> > }
> >
> > and
> >
> > public class MyBean ... {
> > public String getWord() { // this getter shouldn't be
> abstract
> > return word;
> > }
> > }
> >
> > Is there more to the error message?
> >
> > You could put some log messages in the various getter methods to see if
> > they're being called, or whether there's some other problem after
> > they're called like a NPE.
> >
> >
> >
> > Rui Pacheco wrote:
> >
> > > Hi all
> > >
> > > I have a couple of webpages on my web application where this error
> > > occurrs
> > > and I cant find out whats causing. Apparently these pages are no
> > > different
> > > from the other pages that work correctly.
> > >
> > > When I call my page, it complains of the getter method of one of my
> form
> > > elements. I checked the class I use as a model and both the variable
> > > and the
> > > getter and setter are there. I checked the HTML tag and it seems to be
> > > ok.
> > > The bean that corresponds the template also has a getter and setter
> > > for that
> > > field, both public and abstract.
> > >
> > > This is the offending line. Could you give me a hand, please?
> > >
> > > <td><textarea jwcid="[EMAIL PROTECTED]" value="ognl:model.word"
> > > validators="validators:required,maxLength=150" cols="50" rows="15"
> > > class="itemsarea"></textarea></td>
> > >
> >
> >
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> >
> >
>
>
> --
> Jesse Kuhnert
> Tacos/Tapestry, team member/developer
>
> Open source based consulting work centered around
> dojo/tapestry/tacos/hivemind.
>
>
--
Cumprimentos,
Rui Pacheco
--
Howard M. Lewis Ship
Independent J2EE / Open-Source Java Consultant
Creator and PMC Chair, Apache Tapestry
Creator, Jakarta HiveMind
Professional Tapestry training, mentoring, support
and project work. http://howardlewisship.com
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