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CDynamicQueryFactory.h

00001 /* -*- mode: c++ -*- 
00002 */
00003 /* 
00004 
00005     GIFT, a flexible content based image retrieval system.
00006     Copyright (C) 1998, 1999, 2000, 2001, 2002, CUI University of Geneva
00007 
00008     This program is free software; you can redistribute it and/or modify
00009     it under the terms of the GNU General Public License as published by
00010     the Free Software Foundation; either version 2 of the License, or
00011     (at your option) any later version.
00012 
00013     This program is distributed in the hope that it will be useful,
00014     but WITHOUT ANY WARRANTY; without even the implied warranty of
00015     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016     GNU General Public License for more details.
00017 
00018     You should have received a copy of the GNU General Public License
00019     along with this program; if not, write to the Free Software
00020     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00021 
00022 */
00023 // -*- mode: c++ -*-
00024 #ifndef _CDYNAMICBASETYPEFACTORY
00025 #define _CDYNAMICBASETYPEFACTORY
00026 #include "libMRML/include/uses-declarations.h"
00027 
00028 #include <sys/types.h> // reading a directory
00029 #include <dirent.h>    // reading a directory
00030 #include <dlfcn.h>     // dynamic linking 
00031 
00032 #include <iostream>    // screen output
00033 #include <string>
00034 #include <map>
00035 
00036 #include "libMRML/include/CStaticQueryFactory.h"
00037 #include "libMRML/include/CQueryPlugin.h"
00038 
00039 class CDynamicQueryFactory:public CStaticQueryFactory,protected map<string,CQueryPlugin*>{
00040   
00041 public:
00043   CQuery* makeQuery(const string & inBaseType, 
00044                     CAccessorAdminCollection & inAccessorAdminCollection,
00045                     CAlgorithm & inAlgorithm);
00047   CDynamicQueryFactory(string inDirectoryName);
00048 };
00049 
00050 #endif

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