code: public Object getControlValue()
      {
          int i = this.getComponentCount() - 1;
          JComponent component = (JComponent)this.getComponent(i);
          if (component instanceof FieldComponent)
              ((FieldComponent)component).setControlValue(m_converter.getData());
          else if (component instanceof JTextComponent)
              ((JTextComponent)component).setText(m_converter.toString());
  
          return m_converter.getData();
      }
docs: Get the value (On, Off or Null).
  @return The raw-date value of this component.