I dont think that user gets a warning if a param is of raw type. But
we have a warning there.
The problem is that for example MarkupContainer.add(Component) or
IVisitor.visit(Component) i dont care what component is put in
generified or not.
In add it really doesnt matter because we dont do anything with it.
With visitor it is different because the user could use it inside the
method. But it should be useable without warnings for generified and
none generfied components..
On 5/14/08, Igor Vaynberg <[EMAIL PROTECTED]> wrote:
> if we have a signature that accepts a raw type, will that also cause a
> warning in user's code?
>
> also having those suppress annotations practically _everywhere_ will be
> annoying
>
> -igor
>
>
> On Tue, May 13, 2008 at 11:56 PM, Johan Compagner <[EMAIL PROTECTED]>
> wrote:
> > I dont care, because i cant do any thing with the ? The only thing it
> > enforces is that it must now be a generic class which is annoying. Not
> > to mention that in that area eclipse and javac accept different
> > things....
> >
> > So or we in wicket dont use <?> any where and have supress warning
> > everywhere for that or we do use it and then suddenly it is in my eyes
> > restricted to much.
> >
> >
> >
> > On 5/14/08, Sebastiaan van Erk <[EMAIL PROTECTED]> wrote:
> > > Johan Compagner wrote:
> > > > yes thats the reason
> > > >
> > > > you are calling the method add with a generified component but that
> > > > container itself is not generified
> > > >
> > > > i dont like this about generics expecially the onces like this:
> > > >
> > > > add(MarkupContainer<?> container)
> > > >
> > > > then suddenly a none generified component cant be added...
> > > > thats really stupid <?> should mean anything.. including none
> generics
> > >
> > > No, that's not correct. For example, List<?> is much more restrictive
> > > than a raw List (which is a List<Object>). To a raw list you can add an
> > > instance of any type whatever, i.e., list.add(new Object()). But in
> > > List<?> the ? is a wildcard which says it could be any type there,
> i.e.,
> > > it could be a List<Integer>. But you can't add a new Object() to a
> > > List<Integer>!
> > >
> > > Thus MarkupContainer<?> means "MarkupContainer parameterized by some
> > > unknown type", and *not* MarkupContainer parameterized by Object, which
> > > is what the raw type means.
> > >
> > > Regards,
> > > Sebastiaan
> > >
> > > > johan
> > > >
> > > >
> > > > On Tue, May 13, 2008 at 5:55 PM, Stefan Simik
> <[EMAIL PROTECTED]>
> > > > wrote:
> > > >
> > > >> I have one idea,
> > > >>
> > > >> the reason of the warnigs is, that parent of AjaxPagingNavigator is
> > > >> PagingNavigator,
> > > >> which has parent Panel ---> that is not parameterized.
> > > >>
> > > >> The same problem is with LoopItem, which extends the
> > > >> WebMarkupContainer ---> that is not parameterized.
> > > >>
> > > >> ? could this be the reason ?
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >>
> > > >> Stefan Simik wrote:
> > > >>> Mhmm, it is meaningful ;) I will know in future, thx
> > > >>>
> > > >>> One of the last occuring warning is, when working with
> > > >>> MarkupContainer#add(...) or #addOrReplace(...) method.
> > > >>>
> > > >>> Example: I have a simple AjaxPagingNavigator, to which I add a
> simple
> > > >>> ListView
> > > >>>
> -----------------------------------------------------------------------
> > > >>> ListView<Integer> menu = new ListView<Integer>("id", numbers){
> > > >>> //....populate metods
> > > >>> }
> > > >>> add(menu); //warning here
> > > >>>
> > > >>> The warning says:
> > > >>> "Type safety: The method add(Component...) belongs to the raw type
> > > >>> MarkupContainer.
> > > >>> References to generic type MarkupContainer<T> should be
> parameterized"
> > > >>>
> > > >>> I cannot find out, what's the warning reason, because ListView self
> is
> > > >>> parameterized.
> > > >>>
> > > >>>
> > > >> --
> > > >> View this message in context:
> > > >>
> > >
> http://www.nabble.com/Using-generics-with-some-non-generic-classes-in-Wicket-tp17208928p17212015.html
> > > >> Sent from the Wicket - User mailing list archive at Nabble.com.
> > > >>
> > > >>
> > > >>
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> > > >>
> > > >>
> > > >
> > >
> >
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