lucene::search::PhraseScorer Class Reference

#include <PhraseScorer.h>

Inheritance diagram for lucene::search::PhraseScorer:

List of all members.

Public Member Functions
	PhraseScorer (Weight *weight, lucene::index::TermPositions **tps, int32_t *positions, Similarity *similarity, uint8_t *norms)
virtual	~PhraseScorer ()
int32_t	doc () const
	Returns the current document number.
bool	next ()
	Advance to the next document matching the query.
float_t	score ()
	Returns the score of the current document.
bool	skipTo (int32_t target)
	Skips to the first match beyond the current whose document number is greater than or equal to target.
void	explain (int32_t doc, Explanation *ret)
	Returns an explanation of the score for doc.
TCHAR *	toString ()
	Returns an string which explains the object.
Protected Member Functions
virtual float_t	phraseFreq ()=0
void	pqToList ()
void	firstToLast ()
Protected Attributes
uint8_t *	norms
float_t	value
PhraseQueue *	pq
PhrasePositions *	first
PhrasePositions *	last

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Constructor & Destructor Documentation

lucene::search::PhraseScorer::PhraseScorer	(	Weight *	weight,
		lucene::index::TermPositions **	tps,
		int32_t *	positions,
		Similarity *	similarity,
		uint8_t *	norms
	)

virtual lucene::search::PhraseScorer::~PhraseScorer

(

)

[virtual]

---

Member Function Documentation

int32_t lucene::search::PhraseScorer::doc

(

)

const [inline, virtual]

Returns the current document number.

Initially invalid, until next() is called the first time.

Implements lucene::search::Scorer.

References lucene::search::PhrasePositions::doc.

void lucene::search::PhraseScorer::explain	(	int32_t	doc,
		Explanation *	ret
	)			[virtual]

Returns an explanation of the score for doc.

Implements lucene::search::Scorer.

void lucene::search::PhraseScorer::firstToLast

(

)

[protected]

bool lucene::search::PhraseScorer::next

(

)

[virtual]

Advance to the next document matching the query.

Returns true iff there is another match.

Implements lucene::search::Scorer.

virtual float_t lucene::search::PhraseScorer::phraseFreq

(

)

[protected, pure virtual]

Implemented in lucene::search::ExactPhraseScorer, and lucene::search::SloppyPhraseScorer.

void lucene::search::PhraseScorer::pqToList

(

)

[protected]

float_t lucene::search::PhraseScorer::score

(

)

[virtual]

Returns the score of the current document.

Initially invalid, until next() is called the first time.

Implements lucene::search::Scorer.

bool lucene::search::PhraseScorer::skipTo

(

int32_t

target

)

[virtual]

Skips to the first match beyond the current whose document number is greater than or equal to target.

Returns true iff there is such a match.

Behaves as if written:

   boolean skipTo(int32_t target) {
     do {
       if (!next())
 	     return false;
     } while (target > doc());
     return true;
   }
 

Most implementations are considerably more efficient than that.

Implements lucene::search::Scorer.

TCHAR* lucene::search::PhraseScorer::toString

(

)

[virtual]

Returns an string which explains the object.

Implements lucene::search::Scorer.

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Member Data Documentation

PhrasePositions* lucene::search::PhraseScorer::first [protected]

PhrasePositions* lucene::search::PhraseScorer::last [protected]

uint8_t* lucene::search::PhraseScorer::norms [protected]

PhraseQueue* lucene::search::PhraseScorer::pq [protected]

float_t lucene::search::PhraseScorer::value [protected]

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The documentation for this class was generated from the following file:

• PhraseScorer.h