autoDoc/HTML/---libInvertedFile-include-CQueryParadigmMatcher-h

    /* -*- mode: c++ -*-
    */
    /*

        GIFT, a flexible content based image retrieval system.
        Copyright (C) 1998, 1999, 2000 CUI, University of Geneva

        This program is free software; you can redistribute it and/or modify
        it under the terms of the GNU General Public License as published by
        the Free Software Foundation; either version 2 of the License, or
        (at your option) any later version.

        This program is distributed in the hope that it will be useful,
        but WITHOUT ANY WARRANTY; without even the implied warranty of
        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        GNU General Public License for more details.

        You should have received a copy of the GNU General Public License
        along with this program; if not, write to the Free Software
        Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    */
    // -*- mode: c++ -*-
    #ifndef _CPROPERTYSHEETMATCHER
    #define _CPROPERTYSHEETMATCHER

    #include <functional>
    #include "CXMLElement.h" // the type of the operands of the function we are creating

    class CQueryParadigmMatcher:public binary_function<bool,CXMLElement.html">CXMLElement,CXMLElement.html">CXMLElement>{
     protected:
      /** Two XMLElements of type query-paradigm match,
          if the intersection of their attribute sets
          is identical.

          I.e.: If inQuery contains a1="x" a2=y",
          inResult with a1="x" a3="z" would match,
          because the intersection of the attribute
          sets is

          a1="x" and a1="x" for both inQuery and inResult.

          query-paradigm a1="x"
          query-paradigm a2="x"

          would also match,

          query-paradigm a1="x" a3="x"
          query-paradigm a1="y"

          would not.

      */
      bool matches(const CXMLElement& inQuery,const CXMLElement& inResult)const;
     public:
      /**
          This function gives back, if
          the inQuery matches inResult.

          Both parameters are elements of type query-paradigm-list

          inQuery matches inResult, if one of the children (a query paradigm)
          of inQuery matches one of the children (also a query paradigm) of
          inResult.

       */
      bool operator()(const CXMLElement& inQuery,const CXMLElement& inResult)const;
    };

    #endif