title: Calling a method from the getter of a property
body: <p>Is there a way I can define a method, that is called in every case, when a getter for any property in a class is called?</p>
  
  <p>The class is a base class, and I want to implement various SubClasses of it, but each one should have in common that regardless of the property that should be accessed by its getter function, an action should be performed before the attribute is returned.</p>