ReqProhScorer.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      : 2006/5/9
00013 //
00014 #ifndef _REQPROHSCORER_H
00015 #define _REQPROHSCORER_H
00016 
00017 #include "Scorer.h"
00018 
00019 namespace firtex
00020 {
00021         namespace search
00022         {
00023                 class CReqProhScorer :  public CScorer
00024                 {
00025 #define REQPROHSCORER_PAGESIZE          1024
00026                 public:
00027                         CReqProhScorer(CScorer* pReqScorer,CScorer* pProhScorer);
00028                         virtual ~CReqProhScorer(void);
00029                 public:
00034                         count_t nextDocs();
00035 
00042                         count_t scores(docid_t*& docs,score_t*& scores);
00043 
00051                         bool    skipTo(docid_t target,docid_t& nearTarget);
00052 
00057                         bool    next();
00058                         /*
00059                          * 返回当前位置文档的打分结果，必须配合{@link skipTo(docid_t,DOC_ID)}或{@link next()}使用，只有返回true后才有效
00060                          */
00061                         score_t score();
00062 
00063                         /*
00064                          * 返回当前位置文档ID，必须配合{@link skipTo(docid_t,DOC_ID)}或{@link next()}使用，只有返回true后才有效
00065                          */
00066                         docid_t doc();
00067                 protected:
00068                         CScorer*        m_pReqScorer;
00069                         CScorer*        m_pProhScorer;
00070 
00071                         docid_t         m_docs[REQPROHSCORER_PAGESIZE]; //文档ID，内存由CTermDocs维护                   
00072                         score_t         m_scores[REQPROHSCORER_PAGESIZE];       //打分结果
00073                         count_t         m_numDocs;                                              //文档数        
00074                         
00075                 };
00076         }       
00077 }
00078 
00079 
00080 #endif