code: public int setState(boolean bState, boolean bDisplayOption, int iMoveMode)
      {
          Boolean objData = new Boolean(bState);
          if (this.getDataClass() == Boolean.class)
              return this.setData(objData, bDisplayOption, iMoveMode);
          else if (Number.class.isAssignableFrom(this.getDataClass()))
              return this.setValue(objData.booleanValue() ? 1 : 0, bDisplayOption, iMoveMode);
          else if (this.getDataClass() == String.class)
              return this.setString(objData.booleanValue() ? Constants.TRUE : Constants.FALSE, bDisplayOption, iMoveMode);
          return super.setState(bState, bDisplayOption, iMoveMode);
      }
docs: Set the data in this field to true or false.