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SpanScorer.h
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1 // Copyright (c) 2009-2011 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 {
17 public:
18 SpanScorer(SpansPtr spans, WeightPtr weight, SimilarityPtr similarity, ByteArray norms);
19 virtual ~SpanScorer();
20
21 LUCENE_CLASS(SpanScorer);
22
23 protected:
24 SpansPtr spans;
25 WeightPtr weight;
26 ByteArray norms;
27 double value;
28 bool more;
29 int32_t doc;
30 double freq;
31
32 public:
33 virtual int32_t nextDoc();
34 virtual int32_t advance(int32_t target);
35 virtual int32_t docID();
36 virtual double score();
37
38 protected:
39 virtual bool setFreqCurrentDoc();
40
43 virtual ExplanationPtr explain(int32_t doc);
44
45 friend class SpanWeight;
46 friend class PayloadNearSpanWeight;
47 };
48 }
49
50 #endif

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