FieldMerger.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      : 2006/2/23
00013 //
00014 
00015 #ifndef _FIELDMERGER_H
00016 #define _FIELDMERGER_H
00017 
00018 #include "FieldsInfo.h"
00019 #include "FieldIndexer.h"
00020 #include "BarrelsInfo.h"
00021 #include "../store/Directory.h"
00022 #include <string>
00023 using namespace std;
00024 using namespace firtex::store;
00025 
00026 namespace firtex
00027 {
00028         namespace index
00029         {
00030                 class CFieldMergeEntry
00031                 {
00032                 public:
00033                         CFieldMergeEntry()
00034                         {
00035                                 m_pFieldInfo = NULL;
00036                                 m_pBarrelInfo = NULL;
00037                         }
00038                         CFieldMergeEntry(CBarrelInfo* pBarrelInfo,CFieldInfo* pFieldInfo)
00039                         {
00040                                 m_pBarrelInfo = pBarrelInfo;
00041                                 m_pFieldInfo = new CFieldInfo(*pFieldInfo);
00042                         }
00043                         ~CFieldMergeEntry()
00044                         {
00045                                 if(m_pFieldInfo)
00046                                 {
00047                                         delete m_pFieldInfo;
00048                                         m_pFieldInfo = NULL;
00049                                 }
00050                                 m_pBarrelInfo = NULL;
00051                         }
00052                 protected:
00053                         CBarrelInfo*    m_pBarrelInfo;
00054                         CFieldInfo*             m_pFieldInfo;
00055                 };
00056 
00057 
00058                 class CFieldMerger
00059                 {
00060                 public:
00061                         CFieldMerger(void):m_buffer(NULL),m_bufsize(0)
00062                         {
00063                         }
00064                         virtual ~CFieldMerger(void)
00065                         {
00066                                 m_buffer = NULL;
00067                                 m_bufsize = 0;
00068                         }
00069                 public:
00070                         virtual void    addField(CBarrelInfo* pBarrelInfo,CFieldInfo* pFieldInfo) = 0;
00071                         virtual count_t merge(CDirectory* pDirectory,CIndexOutputDescriptor* pDesc) = 0;
00072                         void                    setBuffer(char* buf,size_t bufSize);                    
00073                 protected:
00074                         char*   m_buffer;
00075                         size_t  m_bufsize;
00076                 };
00078                 //inline
00079                 inline void CFieldMerger::setBuffer(char* buf,size_t bufSize)
00080                 {
00081                         m_buffer = buf;
00082                         m_bufsize = bufSize;
00083                 }
00084         }
00085 }
00086 
00087 #endif