Question

I have a super super (grandparent) abstract bean class calling loadData() method in its init() method like this:

public abstract class BaseFwkPageController extends PageControllerSupport {

    public String init(){
        cleanSession();
        loadData();
        return initNavigation;
    }

    public abstract void loadData();

    // ...
}

now I don’t want this loadData() method to be called in the sub subclass (child). I can’t change the super class. How can I achieve this?

Answer 1

You can’t hide the method, reduce its visibility or prevent anyone from calling.

However you can do something like this in your subclass:

@Override
public void loadData() {
  throw new UnsupportedOperationException("not supported");
}

Alternatively, you could put in an interface, exposing only what may be called through the interface.

Interface interface = new Implementation();
interface.callMethod();

This way you will have complete control.