Java注释，用于不调用重写的方法

Question

I have two classes Foo and Bar, where Bar extends Foo.

In the superclass, there is a method f(). The subclass overrides this method and purposefully throws an exception so that f() is never invoked on instances of Bar.

class Foo {
  public void f() {
     // does something useful
  }

}


class Bar extends Foo {
  @Override
  public void f() {
      throw new UnsupportedOperationException("Srsly, thou shalt not");
  }
}

Now here is my question: is there some annotation that I can use on the overridden method that communicates to IDEs such as Eclipse that one shouldn't call it? I found myself wanting to lightly-abuse the @deprecated tag so that the auto-complete list in Eclipse crosses the method out when the user is dealing with an instance of Bar, but I wanted to know if there was a better option.

class Bar extends Foo {

  /**
   * @deprecated
   */
  @Override
  public void f() {
      throw new UnsupportedOperationException("Srsly, thou shalt not");
  }
}

Answer 1

No not really as all (non static) methods in Java are virtual and the calls are resolved at runtime. In other words, there's no way for the compiler to detect that Bar's version of the method will be called in runtime.

Answer 2

I would make the function f() private. That way, it can never be called outside Bar.