dk,
There are a few ways you can accomplish this. One way to do it is to
use inner classes to handle your events:
public class MyCoolWidget {
private class DateHandler implements ValueChangeHandler<Date> {
public void onFailure(Throwable caught) { ... }
public void onSuccess(ValueChangeEvent<Date> event) { ... }
}
private class StringHandler implements ValueChangeHandler<String> {
public void onFailure(Throwable caught) { ... }
public void onSuccess(ValueChangeEvent<String> event) { ... }
}
}
Then, when you add the value change handlers, instead of passing the
this object reference, you pass either new DateHandler() or new
StringHandler().
Another way would be to use anonymous inner classes:
myDateControl.addHandler(new ValueChangeHandler<Date>() {
public onFailure(Throwable caught) { ... }
public onSuccess(ValueChangeEvent<Date> event) { ... }
});
It just depends on if your preference and how many times you'd need to
add them.
You could probably also just implement the ValueChangeHandler
generically without the type at your class level. You'd probably need
to suppress the unchecked warning. Then, you'd have one onFailure
method and one onSuccess method. The difference is that your onSuccess
will received an Object and you'd have to check for the type of
instance and cast it as necessary. I know that works with
AsyncCallbacks, but I've never tried it with ValueChangeHandlers.
HTH,
Chad
On Sep 18, 4:00 pm, dk <[email protected]> wrote:
> Ok, I am back to not knowing what I am doing. Before I wrote the last
> note I am sure there were no warnings/errors on what I was doing but I
> have the Can not implement ValueChange with different types message
> again.
>
> ideas are welcome
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups
"Google Web Toolkit" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/google-web-toolkit?hl=en
-~----------~----~----~----~------~----~------~--~---
