autoDoc/HTML/---libInvertedFile-include-CAcDistanceMatrix-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

    */
    /**
    *
    *
    *
    *
    *
    * modification history:
    *
    * WM 211099 filled documentation templates
    *           answered some comments that were questions
    * WM   0599 file created
    *
    * @author Wolfgang Mueller
    *
    * compiler defines used:
    *
    *
    */
    #ifndef _CDISTANCEMATRIXACCESSOR
    #define _CDISTANCEMATRIXACCESSOR

    #include <string>
    #include "TID.h"
    #include "CAcURL2FTS.h"
    #include <iostream.h>
    #include <fstream.h>
    #include <map>
    #include <hash_map>

    class CXMLElement;
    #include "CDistanceCalculator.h"

    /** In addition to basic CAccessor functionality, this
        accessor permits the lookup of distances between elements
        in the database. The table for this lookup the Distance
        Matrix has to have been calculated in advance, using a series
        of inverted file queries.
     */
    class CAcDistanceMatrix:public CAcURL2FTS,
    			      public CDistanceCalculator{

    protected:

    public:

      /**
       *
       * Is this accessor up and running?
       *
       */
      bool operator()()const;

      /**
       *
       *
       *
       */
      CAcDistanceMatrix(const CXMLElement& inCollectionElement);

      /**
       *
       * Destructor
       *
       */
      ~CAcDistanceMatrix();
    };

    #endif