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TermScorer.h
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1 // Copyright (c) 2009-2014 Alan Wright. All rights reserved.
3 // Distributable under the terms of either the Apache License (Version 2.0)
4 // or the GNU Lesser General Public License.
6
7 #ifndef TERMSCORER_H
8 #define TERMSCORER_H
9
10 #include "Scorer.h"
11
12 namespace Lucene {
13
15 class TermScorer : public Scorer {
16 public:
22 TermScorer(const WeightPtr& weight, const TermDocsPtr& td, const SimilarityPtr& similarity, ByteArray norms);
23
24 virtual ~TermScorer();
25
26 LUCENE_CLASS(TermScorer);
27
28 protected:
29 WeightPtr weight;
30 TermDocsPtr termDocs;
31 ByteArray norms;
32 double weightValue;
33 int32_t doc;
34
35 Collection<int32_t> docs; // buffered doc numbers
36 Collection<int32_t> freqs; // buffered term freqs
37 int32_t pointer;
38 int32_t pointerMax;
39
40 static const int32_t SCORE_CACHE_SIZE;
41 Collection<double> scoreCache;
42
43 public:
44 virtual void score(const CollectorPtr& collector);
45 virtual int32_t docID();
46
51 virtual int32_t nextDoc();
52
53 virtual double score();
54
59 virtual int32_t advance(int32_t target);
60
62 virtual String toString();
63
64 protected:
65 static const Collection<double> SIM_NORM_DECODER();
66
67 virtual bool score(const CollectorPtr& collector, int32_t max, int32_t firstDocID);
68 };
69
70 }
71
72 #endif
Lucene::TermScorer::SCORE_CACHE_SIZE
static const int32_t SCORE_CACHE_SIZE
Definition: TermScorer.h:40
Lucene::TermScorer::docID
virtual int32_t docID()
Returns the following:
Scorer.h
LUCENE_CLASS
#define LUCENE_CLASS(Name)
Definition: LuceneObject.h:24
Lucene::TermScorer::advance
virtual int32_t advance(int32_t target)
Advances to the first match beyond the current whose document number is greater than or equal to a gi...
Lucene::Collection< int32_t >
Lucene::TermScorer::pointer
int32_t pointer
Definition: TermScorer.h:37
Lucene::TermScorer::pointerMax
int32_t pointerMax
Definition: TermScorer.h:38
Lucene::TermScorer::scoreCache
Collection< double > scoreCache
Definition: TermScorer.h:41
Lucene::TermScorer::doc
int32_t doc
Definition: TermScorer.h:33
Lucene
Definition: AbstractAllTermDocs.h:12
Lucene::TermScorer::SIM_NORM_DECODER
static const Collection< double > SIM_NORM_DECODER()
Lucene::WeightPtr
boost::shared_ptr< Weight > WeightPtr
Definition: LuceneTypes.h:480
Lucene::TermScorer::weightValue
double weightValue
Definition: TermScorer.h:32
Lucene::TermScorer::toString
virtual String toString()
Returns a string representation of this TermScorer.
Lucene::TermDocsPtr
boost::shared_ptr< TermDocs > TermDocsPtr
Definition: LuceneTypes.h:236
Lucene::TermScorer::nextDoc
virtual int32_t nextDoc()
Advances to the next document matching the query. The iterator over the matching documents is buffere...
Lucene::Scorer
Common scoring functionality for different types of queries.
Definition: Scorer.h:22
Lucene::TermScorer::TermScorer
TermScorer(const WeightPtr &weight, const TermDocsPtr &td, const SimilarityPtr &similarity, ByteArray norms)
Construct a TermScorer.
Lucene::TermScorer::freqs
Collection< int32_t > freqs
Definition: TermScorer.h:36
Lucene::CollectorPtr
boost::shared_ptr< Collector > CollectorPtr
Definition: LuceneTypes.h:295
Lucene::TermScorer::termDocs
TermDocsPtr termDocs
Definition: TermScorer.h:30
Lucene::Scorer::similarity
SimilarityPtr similarity
Definition: Scorer.h:29
Lucene::TermScorer::weight
WeightPtr weight
Definition: TermScorer.h:26
Lucene::TermScorer
A Scorer for documents matching a Term.
Definition: TermScorer.h:15
Lucene::TermScorer::score
virtual double score()
Returns the score of the current document matching the query. Initially invalid, until {} or #advanc...
Lucene::SimilarityPtr
boost::shared_ptr< Similarity > SimilarityPtr
Definition: LuceneTypes.h:435
Lucene::TermScorer::norms
ByteArray norms
Definition: TermScorer.h:31
Lucene::TermScorer::docs
Collection< int32_t > docs
Definition: TermScorer.h:35
Lucene::TermScorer::~TermScorer
virtual ~TermScorer()

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