StoredFieldsWriter.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      : 2005/12/9
00013 //
00014 #ifndef __STOREDFIELDSWRITER_H
00015 #define __STOREDFIELDSWRITER_H
00016 
00017 #include "../utility/StdHeader.h"
00018 #include "../document/Document.h"
00019 #include "../document/Field.h"
00020 #include "../store/Directory.h"
00021 #include "../store/IndexOutput.h"
00022 #include <string>
00023 
00024 #define STOREDFIELD_WRITEBUFFSIZE       4096            //4K
00025 
00026 using namespace std;
00027 using namespace firtex::store;
00028 using namespace firtex;
00029 
00030 
00031 namespace firtex
00032 {
00033         namespace index
00034         {               
00035                 class CFieldsInfo;
00036                 class CStoredFieldsWriter
00037                 {
00038                 public:
00039                         CStoredFieldsWriter(CDirectory* pDirectory,const tstring& barrel,CFieldsInfo* fieldsInfo);
00040                         CStoredFieldsWriter();
00041                         ~CStoredFieldsWriter(void);
00042                 public:
00047                         void                    addDocument(document::CDocument* pDoc);         
00048                 
00049                         void                    open(CDirectory* pDirectory,const tstring& barrel,CFieldsInfo* fieldsInfo);
00050                         void                    close();
00051                 protected:
00052                         CIndexOutput*   m_pFieldValueWriter;
00053                         CIndexOutput*   m_pFieldIndexWriter;                    
00054 
00055                         CFieldsInfo*    m_pFieldsInfo;
00056                 };
00057 
00058         }
00059 }
00060 
00061 #endif