FirteX－高性能全文索引和检索平台

API Documentation

firtex::search::CScorer类参考

#include <Scorer.h>

继承图，类firtex::search::CScorer


公有成员
	CScorer ()
	CScorer (CSimilarity *pSimilarity)
virtual	~CScorer ()
void	score (CHitCollector *pCollector)
CSimilarity *	getSimilarity ()
virtual count_t	nextDocs ()=0
virtual count_t	scores (docid_t &docs, score_t &scores)=0
virtual bool	skipTo (docid_t target, docid_t &nearTarget)=0
virtual bool	next ()=0
virtual score_t	score ()=0
virtual docid_t	doc ()=0
保护属性
CSimilarity *	m_pSimilarity

firtex::search::CScorer::CScorer ( ) [inline]

firtex::search::CScorer::CScorer ( CSimilarity * pSimilarity ) [inline]

virtual firtex::search::CScorer::~CScorer ( ) [inline, virtual]

CSimilarity* firtex::search::CScorer::getSimilarity ( ) [inline]

void firtex::search::CScorer::score ( CHitCollector * pCollector ) [inline]

进行打分，打分后的结果存放在pCollector容器里
参数:

pCollector 存放打分结果的容器

virtual count_t firtex::search::CScorer::scores ( docid_t *& docs,

score_t *& scores

) [pure virtual]

取文档的打分结果,必须配合nextDocs()使用，当返回值>0时才有效。
参数:

docs 存放文档id，docs地址由内部维护

scores 存放文档打分结果，scores地址由内部维护

返回:
打分的文档总数

在firtex::search::CBooleanScorer、firtex::search::CConjunctionScorer、firtex::search::CDisjunctionScorer、firtex::search::CPhraseScorer、firtex::search::CReqOptScorer、firtex::search::CReqProhScorer及firtex::search::CTermScorer内被实现。

virtual bool firtex::search::CScorer::skipTo ( docid_t target,

docid_t & nearTarget

) [pure virtual]

移动到第一个文档编号大于或等于target的位置，一般配合score()使用
参数:

target 目标文档编号

nearTarget 当搜索成功时nearTarget=target,否则，返回大于target并且与target最接近的doc id, 如果target大于所有值则返回小于target且与target最接近的doc id

返回:
仅当存在这样的文档编号时返回true

在firtex::search::CBooleanScorer、firtex::search::CConjunctionScorer、firtex::search::CDisjunctionScorer、firtex::search::CPhraseScorer、firtex::search::CReqOptScorer、firtex::search::CReqProhScorer及firtex::search::CTermScorer内被实现。

该类的文档由以下文件生成：