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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      Copyright (C) 2003, 2004 Bayreuth University
00009       2005 Bamberg University
00010     This program is free software; you can redistribute it and/or modify
00011     it under the terms of the GNU General Public License as published by
00012     the Free Software Foundation; either version 2 of the License, or
00013     (at your option) any later version.
00014 
00015     This program is distributed in the hope that it will be useful,
00016     but WITHOUT ANY WARRANTY; without even the implied warranty of
00017     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00018     GNU General Public License for more details.
00019 
00020     You should have received a copy of the GNU General Public License
00021     along with this program; if not, write to the Free Software
00022     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00023 
00024 */
00025 // -*- mode: c++ -*-
00026 #ifndef _CDYNAMICBASETYPEFACTORY
00027 #define _CDYNAMICBASETYPEFACTORY
00028 #include "libMRML/include/uses-declarations.h"
00029 
00030 #include <sys/types.h> // reading a directory
00031 #include <dirent.h>    // reading a directory
00032 #include <dlfcn.h>     // dynamic linking 
00033 
00034 #include <iostream>    // screen output
00035 #include <string>
00036 #include <map>
00037 
00038 #include "libMRML/include/CStaticQueryFactory.h"
00039 #include "libMRML/include/CQueryPlugin.h"
00040 
00041 class CDynamicQueryFactory:public CStaticQueryFactory,protected map<string,CQueryPlugin*>{
00042   
00043 public:
00045   CQuery* makeQuery(const string & inBaseType, 
00046                     CAccessorAdminCollection & inAccessorAdminCollection,
00047                     CAlgorithm & inAlgorithm);
00049   CDynamicQueryFactory(string inDirectoryName);
00050 };
00051 
00052 #endif

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