Re: generics in Wicket

Johan Compagner wrote:

But what is the problem then?
You do want the textfield?
But the component isn't really in your way and does give you
getModelObject()
i don't see the point of deleting it from Component but keeping it for
pretty much everything else

johan


On 3/7/07, Jonathan Locke <jonathan.locke@gmail.com> wrote:
>
>
>
> the imodel wouldn't be generic in component.  only in subclasses.  i
> actually mildly prefer total generification too, but a lot of people have
> expressed annoyance at generic code bulk so i've been listening to that.
> basically, getModelObject would return Object below, but ListView<T> would
> return T.  or that was the idea... i'm not sure if it's good.  i just
> wanted
> us to discuss it to see what's there.
>
>
> Stefan Lindner wrote:
> >
> > Maybe I am too accustomed to generics now but I can't imagine how a
> > non-generic Component class definition with a generic Model parameter
> can
> > look like.
> > Now Compinent is defined as
> >
> >      class Component<T> ... {
> >           public Component(final MarkupContainer<?> parent, final String
> > id, final IModel<T> model) {
> >           ...
> >           }
> >
> >           public final T getModelObject() {
> >           ...
> >           }
> >
> > How should a non generic class definition look like? And pepole that
> don't
> > like or need generics can still use the raw types.
> > My preference for a strong gneric API comes from the experience I made
> > when I moved from Wicket 1.2 to 2.0. The simple syntactic modifications
> > for generic Components showed up several programming errors that we
> > otherwise had to debug during runtime of the application. It also showed
> > up some design problems of our applicatioin. So a strong generic API may
> > took a little bit more time in developing an application but it saves
> much
> > more time in debugging.
> >
> > Stefan Lindner
> >
> >
> >
>
> --
> View this message in context:
> http://www.nabble.com/generics-in-Wicket-tf3360271.html#a9356570
> Sent from the Wicket - Dev mailing list archive at Nabble.com.
>
>