Johan Compagner wrote:
yes thats the reasonyou 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]
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