Re: [T5] Why can't i directly access attributes from my superclass?

[Daniel Jue <te...@gmail.com>]

Don't worry, you're not the only one who encountered this problem the hard
way. ;-)
Time to add this to the wiki, since Early T5 adopters will likely run into
this.

http://wiki.apache.org/tapestry/Tapestry5Caveats


On Jan 30, 2008 12:27 PM, Marcelo Lotif <ml...@gmail.com> wrote:

> I'm using 5.0.10-SNAPSHOT.
> I'm not trying to access the attribute on a page, it's just a control
> attribute, and i must have it in some of my classes. For me, is simpler to
> declare it in a superclass and access it directly in the subclasses, since
> subclasses inherit the attributes from the superclass. But it's not so bad
> to use it via getters and setters.
>
> =)
>
> 2008/1/30, Mahen Perera <Ma...@igindex.co.uk>:
> >
> > From what i know, you need to have a getter for each attribute that you
> > are trying to access in the page. This is the way tapestry works AFAIK
> >
> > HTH
> >
> > Mahen
> >
> > -----Original Message-----
> > From: Marcelo Lotif [mailto:mlotifjava@gmail.com]
> > Sent: 30 January 2008 16:32
> > To: Tapestry users
> > Subject: [T5] Why can't i directly access attributes from my superclass?
> >
> > Hi all,
> > I have an attribute used by many of my pages, so i want to put it on an
> > abstract superclass. But, if i mark my attribute as protected or public
> > (on the superclass), and try to use it on my subclass directly, I get a
> > strange
> > error:
> >
> > An unexpected application exception has occurred.
> >
> > Render queue error in BeginRender[Portal:layouterp.menuerp.pagelink_2]:
> > Could not convert 'incluirBtn' into a component parameter binding:
> > java.lang.NoClassDefFoundError:
> > br/com/javasoftware/erp/pages/localizar/ProcurarCliente
> >
> > But, if i create getters and setters and use them in my subclass instead
> > of calling the attribute directly, everything works fine.
> > Anyone knows why this happens?
> >
> > --
> > Atenciosamente,
> > Marcelo Lotif
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>
> --
> Atenciosamente,
> Marcelo Lotif
>