code: private void addPropertyStateExtractMethod() {
          MethodInfo mi = mClassFile.addMethod(Modifiers.PRIVATE, PROPERTY_STATE_EXTRACT_METHOD_NAME,
                                               TypeDesc.INT, new TypeDesc[] {TypeDesc.STRING});
  
          addPropertySwitch(new CodeBuilder(mi), SWITCH_FOR_STATE);
      }
docs: Generates a private method which accepts a property name and returns
  PROPERTY_STATE_UNINITIALIZED, PROPERTY_STATE_DIRTY, or
  PROPERTY_STATE_CLEAN.