so i just implemented IAuthorizationStrategy and on this line in my class:
public boolean isInstantiationAuthorized(Class< ? extends Component>
componentClass)
i get: Component is a raw type. References to generic type
Component<T> should be parameterized
so that means we have to change our sig to <? extends Component<?>>
but then we are back to the problem described in this thread.
generics suck.
-igor
On Wed, May 14, 2008 at 12:12 AM, Johan Compagner <[EMAIL PROTECTED]> wrote:
> 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.
>> > > >>
>> > > >>
>> > > >>
>> ---------------------------------------------------------------------
>> > > >> To unsubscribe, e-mail: [EMAIL PROTECTED]
>> > > >> For additional commands, e-mail: [EMAIL PROTECTED]
>> > > >>
>> > > >>
>> > > >
>> > >
>> >
>> > ---------------------------------------------------------------------
>> > To unsubscribe, e-mail: [EMAIL PROTECTED]
>> > For additional commands, e-mail: [EMAIL PROTECTED]
>> >
>> >
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: [EMAIL PROTECTED]
>> For additional commands, e-mail: [EMAIL PROTECTED]
>>
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
