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FuzzyQuery.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 FUZZYQUERY_H
8 #define FUZZYQUERY_H
9
10 #include "MultiTermQuery.h"
11
12 namespace Lucene
13 {
19 class LPPAPI FuzzyQuery : public MultiTermQuery
20 {
21 public:
30 FuzzyQuery(TermPtr term, double minimumSimilarity, int32_t prefixLength);
31 FuzzyQuery(TermPtr term, double minimumSimilarity);
32 FuzzyQuery(TermPtr term);
33
34 virtual ~FuzzyQuery();
35
36 LUCENE_CLASS(FuzzyQuery);
37
38 protected:
39 double minimumSimilarity;
40 int32_t prefixLength;
41 bool termLongEnough;
42
43 TermPtr term;
44
45 public:
46 static double defaultMinSimilarity();
47 static const int32_t defaultPrefixLength;
48
49 public:
50 using MultiTermQuery::toString;
51
54 double getMinSimilarity();
55
58 int32_t getPrefixLength();
59
61 TermPtr getTerm();
62
63 virtual void setRewriteMethod(RewriteMethodPtr method);
64 virtual QueryPtr rewrite(IndexReaderPtr reader);
65
66 virtual LuceneObjectPtr clone(LuceneObjectPtr other = LuceneObjectPtr());
67 virtual String toString(const String& field);
68 virtual int32_t hashCode();
69 virtual bool equals(LuceneObjectPtr other);
70
71 protected:
72 void ConstructQuery(TermPtr term, double minimumSimilarity, int32_t prefixLength);
73
74 virtual FilteredTermEnumPtr getEnum(IndexReaderPtr reader);
75 };
76 }
77
78 #endif

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