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/* -*- mode: c++ -*-
*/
/*
GIFT, a flexible content based image retrieval system.
Copyright (C) 1998, 1999, 2000, 2001, 2002, 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 _CQUERYPLUGIN
#define _CQUERYPLUGIN
#include "libMRML/include/uses-declarations.h"
#include <sys/types.h> // reading a directory
#include <dirent.h> // reading a directory
#include <dlfcn.h> // dynamic linking
#include <iostream> // screen output
#include <string>
#include <map>
class CQuery;
class CAlgorithm;
class CAccessorAdminCollection;
class CQueryPlugin{
protected:
/** the handle which enables us to open*/
void* mDlOpenHandle;
/** the name of the plugin */
string mName;
/** the function for making a query object */
CQuery* (*mMakeQuery)(CAccessorAdminCollection& inAccessorAdminCollection,
CAlgorithm& inAlgorithm);
/** this function gives us the name of the plugin */
char* (*mGetName)(void);
/** is this well constructed? */
bool mIsSane;
public:
/** makes a CQuery object*/
CQuery* makeQuery(CAccessorAdminCollection& inAccessorAdminCollection,
CAlgorithm& inAlgorithm);
/** gets the name of the plugin */
char* getName();
/** opens the library and sets the make query etc. functions */
CQueryPlugin(string,string);
/** copy all the content */
CQueryPlugin(CQueryPlugin&);
/** close the DlOpenHandle of the library*/
~CQueryPlugin();
/** is this well constructed */
bool isSane()const;
};
#endif
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