System documentation of the GNU Image-Finding Tool

Main Page | Class Hierarchy | Alphabetical List | Compound List | File List | Compound Members

CAccessor.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 #ifndef _CACCESSOR
00024 #define _CACCESSOR
00025 #include "libMRML/include/uses-declarations.h"
00026 #include <string>
00027 #include <list>
00028 #include "libMRML/include/TID.h"
00029 
00030 #ifdef GIFT_MULTI_THREAD
00031 #include <pthread.h>
00032 #endif
00033 
00034 #include "libMRML/include/CMutex.h"
00035 #include "libMRML/include/CAccessorElement.h"
00036 class CXMLElement;
00037 
00053 class CAccessor{
00054 protected:
00060   virtual void  dummy()const;
00061 
00062 public:
00068   virtual operator bool()const=0;
00069 
00075   virtual string IDToURL(TID inID)const=0;
00081   virtual pair<bool,CAccessorElement> IDToAccessorElement(TID inID)const=0;
00082   
00088   virtual pair<bool,TID> URLToID(const string& inURL)const=0;
00089   
00098   virtual void getAllIDs(list<TID>&)const=0;
00101   virtual void getAllAccessorElements(list<CAccessorElement>&)const=0;
00106   virtual void getRandomIDs(list<TID>&,
00107                             list<TID>::size_type)const=0;
00116   virtual void getRandomAccessorElements(list<CAccessorElement>& outResult,
00117                                          list<CAccessorElement>::size_type inSize)const=0;
00119   virtual int size()const=0;
00121 
00135   virtual CXMLElement* prepareDatabase();
00140   virtual bool isPreparedDatabase()const;
00142 
00143   virtual ~CAccessor();
00144 };
00145 
00146 #endif

Need for discussion? Want to contribute? Contact
help-gift@gnu.org Generated using Doxygen