public override void ExitRule(IParseTreeListener listener)
        {
            IJPropertiesListener typedListener = listener as IJPropertiesListener;

            if (typedListener != null)
            {
                typedListener.ExitValue(this);
            }
        }
        public override void EnterRule(IParseTreeListener listener)
        {
            IJPropertiesListener typedListener = listener as IJPropertiesListener;

            if (typedListener != null)
            {
                typedListener.EnterKey(this);
            }
        }