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SpanScorer.h
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1
2// 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 SPANSCORER_H
8#define SPANSCORER_H
9
10#include "Scorer.h"
11
12 namespace Lucene {
13
15 class LPPAPI SpanScorer : public Scorer {
16 public:
17 SpanScorer(const SpansPtr& spans, const WeightPtr& weight, const SimilarityPtr& similarity, ByteArray norms);
18 virtual ~SpanScorer();
19
20 LUCENE_CLASS(SpanScorer);
21
22 protected:
23 SpansPtr spans;
24 WeightPtr weight;
25 ByteArray norms;
26 double value;
27 bool more;
28 int32_t doc;
29 double freq;
30
31 public:
32 virtual int32_t nextDoc();
33 virtual int32_t advance(int32_t target);
34 virtual int32_t docID();
35 virtual double score();
36 virtual float termFreq(){
37 return freq;
38 }
39
40 protected:
41 virtual bool setFreqCurrentDoc();
42
45 virtual ExplanationPtr explain(int32_t doc);
46
47 friend class SpanWeight;
48 friend class PayloadNearSpanWeight;
49};
50
51}
52
53#endif
LUCENE_CLASS
#define LUCENE_CLASS(Name)
Definition LuceneObject.h:24
Scorer.h
Lucene::Scorer::similarity
SimilarityPtr similarity
Definition Scorer.h:45
Lucene::Scorer::Scorer
Scorer(const SimilarityPtr &similarity)
Constructs a Scorer.
Lucene::SpanScorer::spans
SpansPtr spans
Definition SpanScorer.h:23
Lucene::SpanScorer::more
bool more
Definition SpanScorer.h:27
Lucene::SpanScorer::advance
virtual int32_t advance(int32_t target)
Advances to the first beyond the current whose document number is greater than or equal to target....
Lucene::SpanScorer::SpanWeight
friend class SpanWeight
Definition SpanScorer.h:47
Lucene::SpanScorer::docID
virtual int32_t docID()
Returns the following:
Lucene::SpanScorer::termFreq
virtual float termFreq()
Definition SpanScorer.h:36
Lucene::SpanScorer::PayloadNearSpanWeight
friend class PayloadNearSpanWeight
Definition SpanScorer.h:48
Lucene::SpanScorer::~SpanScorer
virtual ~SpanScorer()
Lucene::SpanScorer::norms
ByteArray norms
Definition SpanScorer.h:25
Lucene::SpanScorer::weight
WeightPtr weight
Definition SpanScorer.h:24
Lucene::SpanScorer::score
virtual double score()
Returns the score of the current document matching the query. Initially invalid, until nextDoc() or a...
Lucene::SpanScorer::explain
virtual ExplanationPtr explain(int32_t doc)
This method is no longer an official member of Scorer, but it is needed by SpanWeight to build an exp...
Lucene::SpanScorer::SpanScorer
SpanScorer(const SpansPtr &spans, const WeightPtr &weight, const SimilarityPtr &similarity, ByteArray norms)
Lucene::SpanScorer::value
double value
Definition SpanScorer.h:26
Lucene::SpanScorer::setFreqCurrentDoc
virtual bool setFreqCurrentDoc()
Lucene::SpanScorer::nextDoc
virtual int32_t nextDoc()
Advances to the next document in the set and returns the doc it is currently on, or NO_MORE_DOCS if t...
Lucene::SpanScorer::freq
double freq
Definition SpanScorer.h:29
Lucene::SpanScorer::doc
int32_t doc
Definition SpanScorer.h:28
Lucene
Definition AbstractAllTermDocs.h:12
Lucene::WeightPtr
boost::shared_ptr< Weight > WeightPtr
Definition LuceneTypes.h:480
Lucene::SpansPtr
boost::shared_ptr< Spans > SpansPtr
Definition LuceneTypes.h:453
Lucene::ExplanationPtr
boost::shared_ptr< Explanation > ExplanationPtr
Definition LuceneTypes.h:333
Lucene::SimilarityPtr
boost::shared_ptr< Similarity > SimilarityPtr
Definition LuceneTypes.h:435

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