Writing your own adapter

Question

Hi everybody,
I'm pretty sure this is general enough not to be in the Swing forum, although this particular example involves Swing, if not, please let me know. :)
Anyway, I'm trying to write an adapter class that can use methods in many different listener classes, but doesn't need to implement all of them. I need certain methods from each listener class, but not all of them, and the extra methods would clutter my code up. I can't extend them all, I know.
My first attempt at this was:
public abstract class Adapter implements ActionListener, MenuListener, MouseInputListener,
          WindowFocusListener, WindowListener {
}I've also tried:
public interface Adapter extends ActionListener, MenuListener, MouseInputListener,
          WindowFocusListener, WindowListener {
}In both cases, I get warnings and errors saying I need to implement every method in each interface (windowClosing, actionPerformed, etc.). Does anyone know what I'm doing wrong here?
Thanks,
Jezzica85

Answer 1

KelVarnson wrote:
Encephalopathic wrote:
The thing is though the Adapter class is by nature ugly and will have many methods declared that do nothing. If you want to create this, yours is going to be cluttered with many empty methods.Isn't that the whole point of an Adapter class? Yes. I didn't say that this is a bad thing, just that it doesn't look pretty; it's cluttered. What is bad is her desire to lump them all together into one big unholy mess.
But yes, I do agree with your points against a mega-Adapter.As we both agree on.