code: public void init(BaseField field, boolean bChangeDataOnRefresh)
      {
          super.init(field);
          m_objOriginalData = null;
          m_bAlwaysEnabled = false;
          m_bChangeDataOnRefresh = bChangeDataOnRefresh;
          this.setRespondsToMode(DBConstants.SCREEN_MOVE, false);
      }
docs: Constructor.
  @param field The basefield owner of this listener (usually null and set on setOwner()).