Overriding a method in an instantiated Java object

Question

I would like to override a method in an object that\'s handed to me by a factory that I have little control over.

My specific problem is that I want to override the

Answer 1

I think there is a way to achieve the effect you want. I saw it orriginally used in swing with buttons to allow the programmer to make the button do something when it is clicked.

Say you have your Foo class:

public class Foo {
  public Bar doBar() {
    // Some activity
  }
}

Then you have a runner class or something similar. You can override the doBar() method at the point of instantiation and it will only affect that specific object.

that class may look like this:

public class FooInstance{
  Foo F1 = new Foo(){
    public Bar doBar(){
      //new activity
    }
  }

  Foo F2 = new Foo();

  F1.doBar(); //does the new activity
  F2.doBar(); //does the original activity found in the class
}

I'm not entirely sure that will do the trick for you but maybe it'll set you in the right direction. If nothing else it is possible to override a method outside of the class, maybe that will help you.