This is what you could do:
import java.util.Locale;
public class Test {
public <L> IConverter<L> getConverter(Class<L> type) {
return null;
}
}
class InnerTest extends Test {
public <K> IConverter<K> getConverter(Class<K> type) {
if (Integer.class.isAssignableFrom(type)) {
return (IConverter<K>) new IConverter<Integer>() {
public Integer convertToObject(String value, Locale locale) {
return null;
}
public String convertToString(Integer value, Locale locale) {
return null;
}
};
} else {
return super.getConverter(type);
}
}
public void foo() {
IConverter<Integer> converter = getConverter(Integer.class);
}
}
interface IConverter<X> {
public X convertToObject(String value, Locale locale);
public String convertToString(Integer value, Locale locale);
}
But, you are obligated to use a hard cast inside of getConverter either way.
Regards
On Tue, Apr 15, 2008 at 4:04 PM, Igor Vaynberg <[EMAIL PROTECTED]>
wrote:
> Type mismatch: cannot convert from new IConverter<Integer>(){} to
> IConverter<Z>
>
> i can hard cast to IConverter<Z> myself, but then there is very little
> point to having it generified
>
> -igor
>
>
> On Tue, Apr 15, 2008 at 11:59 AM, Bruno Borges <[EMAIL PROTECTED]>
> wrote:
> > What is the compile error message?
> >
> > On Tue, Apr 15, 2008 at 3:10 PM, Igor Vaynberg <[EMAIL PROTECTED]
> >
> >
> >
> > wrote:
> >
> > > maybe just IConverter<?> getConverter(Class<?> cl)
> > >
> > > -igor
> > >
> > >
> > > On Tue, Apr 15, 2008 at 11:05 AM, Igor Vaynberg <
> [EMAIL PROTECTED]>
> > > wrote:
> > > > example below doesnt compile, so im not exactly sure how to
> override
> > > > generified getconverter() properly ... do we need to change our
> > > > generics decl somehow?
> > > >
> > > > -igor
> > > >
> > > > @Override
> > > > public <Z> IConverter<Z> getConverter(Class<Z> type)
> > > > {
> > > > if (Integer.class.isAssignableFrom(type))
> > > > {
> > > > return new IConverter<Integer>()
> > > > {
> > > > private static final long
> > > serialVersionUID = 1L;
> > > >
> > > > public Integer
> convertToObject(String
> > > value, Locale locale)
> > > > {
> > > > return null;
> > > > }
> > > >
> > > > public String
> convertToString(Integer
> > > value, Locale locale)
> > > > {
> > > > return null;
> > > > }
> > > >
> > > > };
> > > > }
> > > > else
> > > > {
> > > > return super.getConverter(type);
> > > > }
> > > > }
> > > >
> > >
> >
> >
> >
> > --
> > Bruno Borges
> > blog.brunoborges.com.br
> > +55 1185657739
> >
> > "The glory of great men should always be
> > measured by the means they have used to
> > acquire it."
> > - Francois de La Rochefoucauld
> >
>
--
Bruno Borges
blog.brunoborges.com.br
+55 1185657739
"The glory of great men should always be
measured by the means they have used to
acquire it."
- Francois de La Rochefoucauld
