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SpanWeight.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 SPANWEIGHT_H
8#define SPANWEIGHT_H
9
10#include "Weight.h"
11
12namespace Lucene {
13
15class LPPAPI SpanWeight : public Weight {
16public:
17 SpanWeight(const SpanQueryPtr& query, const SearcherPtr& searcher);
18 virtual ~SpanWeight();
19
21
22protected:
24 double value;
25 double idf;
26 double queryNorm;
28
29 SetTerm terms;
32
33public:
34 virtual QueryPtr getQuery();
35 virtual double getValue();
36 virtual double sumOfSquaredWeights();
37 virtual void normalize(double norm);
38 virtual ScorerPtr scorer(const IndexReaderPtr& reader, bool scoreDocsInOrder, bool topScorer);
39 virtual ExplanationPtr explain(const IndexReaderPtr& reader, int32_t doc);
40
42 friend class PayloadTermSpanScorer;
43};
44
45}
46
47#endif
#define LUCENE_CLASS(Name)
Definition LuceneObject.h:24
Definition PayloadNearQuery.h:63
Public for use by other weight implementations.
Definition SpanWeight.h:15
virtual double sumOfSquaredWeights()
The sum of squared weights of contained query clauses.
IDFExplanationPtr idfExp
Definition SpanWeight.h:31
double queryWeight
Definition SpanWeight.h:27
double queryNorm
Definition SpanWeight.h:26
virtual ExplanationPtr explain(const IndexReaderPtr &reader, int32_t doc)
An explanation of the score computation for the named document.
virtual ScorerPtr scorer(const IndexReaderPtr &reader, bool scoreDocsInOrder, bool topScorer)
Returns a Scorer which scores documents in/out-of order according to scoreDocsInOrder.
SpanQueryPtr query
Definition SpanWeight.h:30
double value
Definition SpanWeight.h:24
virtual QueryPtr getQuery()
The query that this concerns.
virtual double getValue()
The weight for this query.
virtual ~SpanWeight()
SimilarityPtr similarity
Definition SpanWeight.h:23
SetTerm terms
Definition SpanWeight.h:29
virtual void normalize(double norm)
Assigns the query normalization factor to this.
SpanWeight(const SpanQueryPtr &query, const SearcherPtr &searcher)
double idf
Definition SpanWeight.h:25
Calculate query weights and build query scorers.
Definition Weight.h:30
Definition AbstractAllTermDocs.h:12
boost::shared_ptr< SpanQuery > SpanQueryPtr
Definition LuceneTypes.h:450
boost::shared_ptr< Query > QueryPtr
Definition LuceneTypes.h:420
boost::shared_ptr< Searcher > SearcherPtr
Definition LuceneTypes.h:434
boost::shared_ptr< Similarity > SimilarityPtr
Definition LuceneTypes.h:435
boost::shared_ptr< Explanation > ExplanationPtr
Definition LuceneTypes.h:333
boost::shared_ptr< IDFExplanation > IDFExplanationPtr
Definition LuceneTypes.h:372
boost::shared_ptr< IndexReader > IndexReaderPtr
Definition LuceneTypes.h:157
boost::shared_ptr< Scorer > ScorerPtr
Definition LuceneTypes.h:429

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