Collection.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,ruijieguo@gmail.com
00012 // Created      : 2005/11/9
00013 //
00014 #ifndef __COLLECTION_H
00015 #define __COLLECTION_H
00016 
00017 #include "../index/IndexWriter.h"
00018 #include "../utility/StdHeader.h"
00019 #include "../document/doctypedef.h"
00020 
00021 using namespace firtex::index;
00022 
00023 namespace firtex
00024 {
00025         namespace collection
00026         {
00031                 class CCollection
00032                 {
00033                 public:
00034                         static const tstring category;
00035                         static const tstring identifier;
00036                 public:
00037                         CCollection(void);      
00038 
00044                         CCollection(CIndexWriter* pIndexWriter);
00045                         virtual ~CCollection(void);                                             
00046                 public:
00051                         void                            attachWriter(CIndexWriter* pWriter);
00052 
00058                         CIndexWriter*           detachWriter();
00059 
00064                         void                            setTerminate(bool bTerminate = true){m_bTerminate = bTerminate;}
00065 
00070                         inline bool                     isTerminate(){return m_bTerminate;}
00071 
00078                         void            setModifiedDate(const tchar* field = _T("modified"),bool bStore = true,bool bIndex = true);
00079 
00083                         bool            isIndexModifiedDate();
00084 
00085                         schemaid_t      getModifiedDateSchemaId(){return m_modifiedDateSchemaId;}
00086 
00092                         inline CIndexParameter* getIndexParameter();
00093                 public:
00097                         virtual tstring         getCategory(){ return category; }       
00098 
00102                         virtual tstring         getIdentifier(){ return m_identifier; }
00103                         
00107                         bool                            scan();
00108                 public:
00112                         virtual bool            addFile(const tchar* filename){throw CUnsupportedOperationException("CCollection.addFile");return false;}                       
00113 
00117                         virtual void            close();
00118                 protected:
00122                         virtual bool            scanInternal()=0;
00123                 protected:
00124                         CIndexWriter*           m_pIndexWriter; 
00125                         CIndexParameter*        m_pIndexParameter;
00126                         bool                            m_bTerminate;
00127                         tstring                         m_identifier;
00128                         schemaid_t                      m_modifiedDateSchemaId;
00129                 };      
00131                 //
00132                 inline CIndexParameter* CCollection::getIndexParameter()
00133                 {
00134                         if(!m_pIndexParameter)
00135                                 m_pIndexParameter = new CIndexParameter();
00136                         return m_pIndexParameter;
00137                 }
00138                 inline bool CCollection::isIndexModifiedDate()
00139                 {
00140                         return (m_modifiedDateSchemaId!=-1);
00141                 }
00142         }
00143 }
00144 
00145 
00146 #endif