FXInvIndex.h

00001 //
00002 // Copyright(C) 2005--2006 Institute of Computing Tech, Chinese Academy of Sciences. 
00003 // All rights reserved.
00004 // This file is part of FirteX (www.firtex.org)
00005 //
00006 // Use of the FirteX is subject to the terms of the software license set forth in 
00007 // the LICENSE file included with this software, and also available at
00008 // http://www.firtex.org/license.html
00009 //
00010 // Author       : 郭瑞杰(GuoRuijie)
00011 // Email        : ruijieguo@software.ict.ac.cn
00012 // Created      : 2005/12/07
00013 //
00014 
00015 #ifndef __INVFIINDEX_H
00016 #define __INVFIINDEX_H
00017 
00018 #include "../utility/StdHeader.h"
00019 #include <string>
00020 #include <vector>
00021 #include "Index.h"
00022 #include "IndexBarrelWriter.h"
00023 #include "IndexBarrelReader.h"
00024 #include "BarrelsInfo.h"
00025 
00026 using namespace std;
00027 
00028 namespace firtex
00029 {
00030         namespace index
00031         {
00032                 class CFXInvIndex :     public CIndex
00033                 {
00034                 public:
00035                         CFXInvIndex(const tchar* indName,bool bCreate);
00036                         CFXInvIndex(CDirectory* pDirectory,bool bCreate);
00037                         virtual ~CFXInvIndex(void);
00038                 public:                 
00039 
00044                         void    addDocument(document::CDocument* pDoc);
00045 
00050                         void    deleteDocument(docid_t docID);
00051 
00055                         void    deleteDocuments(const CTerm* term);
00056 
00060                         void    undeleteAll();                  
00061 
00065                         void    close();
00066                         
00070                         void    removeAll();                                            
00071 
00075                         count_t numDocs();
00076 
00081                         count_t maxDoc();
00082 
00088                         void    merge();
00089 
00095                         void    optimize(bool bDeleteDocs = false);
00096 
00103                         document::CDocument* document(docid_t docID);           
00104 
00112                         document::CField*               field(docid_t docID,fieldid_t fid);
00113 
00119             CTermReader* termReader();
00120 
00127                         CNormBytes*      norms(fieldid_t fieldID);
00128 
00135                         CNormBytes*      norms(const tchar* field);
00136 
00141                         string  getVersion(){return m_pBarrelsInfo->getVersion();};
00142 
00146                         CBarrelsInfo& getBarrelsInfo(){return *m_pBarrelsInfo;}
00147 
00152                         CFieldsInfo& getFieldsInfo();
00153 
00159                         CIndexBarrelReader* getBarrelReader();
00160 
00166                         CTermVectorReader*      getTermVectorReader();
00167                 protected:
00171                         void    writeCache();
00172 
00176                         void    createBarrelReader();
00177                 private:
00178                         CBarrelsInfo*           m_pBarrelsInfo;
00179                         CIndexBarrelWriter*     m_pIndexBarrelWriter;   //当前索引桶写接口
00180 
00181                         CIndexBarrelReader*     m_pBarrelReader;                //barrel读接口
00182 
00183                         count_t                         m_docCounter;                   //文档计数器
00184                         docid_t                         m_curMinDocID;                  //当前索引桶的最小文档编号
00185 
00186                         friend class CMultiTermSearcher;
00187                 };
00189                 //Inline function               
00190         }
00191 }
00192 
00193 #endif