title: Invoke a method on all subclasses from superclass?
body: <p>I have recently stubled upon something that has always annoyed me.</p>
  
  <p>Whenever I want a method to be invoked in all classes that have a certain interface, or if they are extensions, I would like to have a keyword that does the opposite of the keyword <em>super</em>. Basically, I want the invocation to be passed down <strong>(if a class inherits a method, and the method in the superclass is called, it will be called in the subclass as well)</strong>. Is there anything that resembles what I am asking for?</p>
  
  <p><strong>EDIT:
  The contemporary methods I am using are efficient, but not as efficient as I would like them to be. I am only wondering if there is a way of invoking a method, that has been inherited, from its superclass/superinterface. The last time I was looking for this, I did not find it either.</strong></p>
  
  <p><strong>NOTE: All of the subclasses are unknown, hence impossible to utilize. The only known class is the superclass, which is why I can't invoke it. This can be solved using the Reflections API, which I am currently using. However, it does not always comply with what I am searching for.</strong></p>