docs: public void init(Converter converter, String strTargetValue, BaseField fldTargetValue, String strAltFieldDesc, boolean bTrueIfMatch, Boolean boolMaskValue)
      {
          m_fldTargetValue = fldTargetValue;
          m_strTargetValue = strTargetValue;
          m_bTrueIfMatch = bTrueIfMatch;
          if (boolMaskValue != null)
              m_boolMaskValue = boolMaskValue;
          else
          {
              if ((converter != null)
                      && (converter.getField() instanceof StringField))
                  m_boolMaskValue = Boolean.TRUE;    // String - default to true (mask)
              else
                  m_boolMaskValue = Boolean.FALSE;     // Other - default to false (value = target)
          }
          super.init(converter, strAltFieldDesc, null);
      }