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FuzzyQuery.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 FUZZYQUERY_H
8#define FUZZYQUERY_H
9
10#include "MultiTermQuery.h"
11
12 namespace Lucene {
13
19 class LPPAPI FuzzyQuery : public MultiTermQuery {
20 public:
29 FuzzyQuery(const TermPtr& term, double minimumSimilarity, int32_t prefixLength);
30 FuzzyQuery(const TermPtr& term, double minimumSimilarity);
31 FuzzyQuery(const TermPtr& term);
32
33 virtual ~FuzzyQuery();
34
35 LUCENE_CLASS(FuzzyQuery);
36
37 protected:
38 double minimumSimilarity;
39 int32_t prefixLength;
40 bool termLongEnough;
41
42 TermPtr term;
43
44 public:
45 static double defaultMinSimilarity();
46 static const int32_t defaultPrefixLength;
47
48 public:
49 using MultiTermQuery::toString;
50
53 double getMinSimilarity();
54
57 int32_t getPrefixLength();
58
60 TermPtr getTerm();
61
62 virtual void setRewriteMethod(const RewriteMethodPtr& method);
63 virtual QueryPtr rewrite(const IndexReaderPtr& reader);
64
65 virtual LuceneObjectPtr clone(const LuceneObjectPtr& other = LuceneObjectPtr());
66 virtual String toString(const String& field);
67 virtual int32_t hashCode();
68 virtual bool equals(const LuceneObjectPtr& other);
69
70 protected:
71 void ConstructQuery(const TermPtr& term, double minimumSimilarity, int32_t prefixLength);
72
73 virtual FilteredTermEnumPtr getEnum(const IndexReaderPtr& reader);
74};
75
76}
77
78#endif
LUCENE_CLASS
#define LUCENE_CLASS(Name)
Definition LuceneObject.h:24
MultiTermQuery.h
Lucene::FuzzyQuery::getTerm
TermPtr getTerm()
Returns the pattern term.
Lucene::FuzzyQuery::minimumSimilarity
double minimumSimilarity
Definition FuzzyQuery.h:38
Lucene::FuzzyQuery::term
TermPtr term
Definition FuzzyQuery.h:42
Lucene::FuzzyQuery::rewrite
virtual QueryPtr rewrite(const IndexReaderPtr &reader)
Called to re-write queries into primitive queries. For example, a PrefixQuery will be rewritten into ...
Lucene::FuzzyQuery::getEnum
virtual FilteredTermEnumPtr getEnum(const IndexReaderPtr &reader)
Construct the enumeration to be used, expanding the pattern term.
Lucene::FuzzyQuery::getMinSimilarity
double getMinSimilarity()
Returns the minimum similarity that is required for this query to match.
Lucene::FuzzyQuery::getPrefixLength
int32_t getPrefixLength()
Returns the non-fuzzy prefix length. This is the number of characters at the start of a term that mus...
Lucene::FuzzyQuery::~FuzzyQuery
virtual ~FuzzyQuery()
Lucene::FuzzyQuery::defaultMinSimilarity
static double defaultMinSimilarity()
Lucene::FuzzyQuery::FuzzyQuery
FuzzyQuery(const TermPtr &term, double minimumSimilarity, int32_t prefixLength)
Create a new FuzzyQuery that will match terms with a similarity of at least minimumSimilarity to term...
Lucene::FuzzyQuery::equals
virtual bool equals(const LuceneObjectPtr &other)
Return whether two objects are equal.
Lucene::FuzzyQuery::clone
virtual LuceneObjectPtr clone(const LuceneObjectPtr &other=LuceneObjectPtr())
Returns a clone of this query.
Lucene::FuzzyQuery::hashCode
virtual int32_t hashCode()
Return hash code for this object.
Lucene::FuzzyQuery::prefixLength
int32_t prefixLength
Definition FuzzyQuery.h:39
Lucene::FuzzyQuery::FuzzyQuery
FuzzyQuery(const TermPtr &term, double minimumSimilarity)
Lucene::FuzzyQuery::termLongEnough
bool termLongEnough
Definition FuzzyQuery.h:40
Lucene::FuzzyQuery::ConstructQuery
void ConstructQuery(const TermPtr &term, double minimumSimilarity, int32_t prefixLength)
Lucene::FuzzyQuery::setRewriteMethod
virtual void setRewriteMethod(const RewriteMethodPtr &method)
Sets the rewrite method to be used when executing the query. You can use one of the four core methods...
Lucene::FuzzyQuery::FuzzyQuery
FuzzyQuery(const TermPtr &term)
Lucene::FuzzyQuery::defaultPrefixLength
static const int32_t defaultPrefixLength
Definition FuzzyQuery.h:46
Lucene::FuzzyQuery::toString
virtual String toString(const String &field)
Prints a query to a string, with field assumed to be the default field and omitted.
Lucene::LuceneObject::toString
virtual String toString()
Returns a string representation of the object.
Lucene::MultiTermQuery::MultiTermQuery
MultiTermQuery()
Lucene
Definition AbstractAllTermDocs.h:12
Lucene::QueryPtr
boost::shared_ptr< Query > QueryPtr
Definition LuceneTypes.h:420
Lucene::LuceneObjectPtr
boost::shared_ptr< LuceneObject > LuceneObjectPtr
Definition LuceneTypes.h:539
Lucene::TermPtr
boost::shared_ptr< Term > TermPtr
Definition LuceneTypes.h:233
Lucene::RewriteMethodPtr
boost::shared_ptr< RewriteMethod > RewriteMethodPtr
Definition LuceneTypes.h:425
Lucene::FilteredTermEnumPtr
boost::shared_ptr< FilteredTermEnum > FilteredTermEnumPtr
Definition LuceneTypes.h:365
Lucene::IndexReaderPtr
boost::shared_ptr< IndexReader > IndexReaderPtr
Definition LuceneTypes.h:157

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