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NumericTokenStream.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 NUMERICTOKENSTREAM_H
8#define NUMERICTOKENSTREAM_H
9
10#include "TokenStream.h"
11
12namespace Lucene {
13
52class LPPAPI NumericTokenStream : public TokenStream {
53public:
58
61 NumericTokenStream(int32_t precisionStep);
62
66 NumericTokenStream(const AttributeSourcePtr& source, int32_t precisionStep);
67
71 NumericTokenStream(const AttributeFactoryPtr& factory, int32_t precisionStep);
72
74
76
77protected:
81
82 int32_t shift;
83 int32_t valSize; // valSize == 0 means not initialized
85
86 int64_t value;
87
88public:
90 static const String& TOKEN_TYPE_FULL_PREC();
91
93 static const String& TOKEN_TYPE_LOWER_PREC();
94
100
106
112
113 virtual void reset();
114 virtual bool incrementToken();
115 virtual String toString();
116};
117
118}
119
120#endif
#define LUCENE_CLASS(Name)
Definition LuceneObject.h:24
This class provides a TokenStream for indexing numeric values that can be used by NumericRangeQuery o...
Definition NumericTokenStream.h:52
TermAttributePtr termAtt
Definition NumericTokenStream.h:78
NumericTokenStreamPtr setIntValue(int32_t value)
Initializes the token stream with the supplied int value.
int64_t value
Definition NumericTokenStream.h:86
int32_t precisionStep
Definition NumericTokenStream.h:84
int32_t valSize
Definition NumericTokenStream.h:83
virtual bool incrementToken()
Consumers (ie., IndexWriter) use this method to advance the stream to the next token....
NumericTokenStream()
Creates a token stream for numeric values using the default precisionStep NumericUtils#PRECISION_STEP...
static const String & TOKEN_TYPE_LOWER_PREC()
The lower precision tokens gets this token type assigned.
TypeAttributePtr typeAtt
Definition NumericTokenStream.h:79
int32_t shift
Definition NumericTokenStream.h:82
NumericTokenStreamPtr setLongValue(int64_t value)
Initializes the token stream with the supplied long value.
NumericTokenStream(const AttributeSourcePtr &source, int32_t precisionStep)
Creates a token stream for numeric values with the specified precisionStep using the given AttributeS...
NumericTokenStream(const AttributeFactoryPtr &factory, int32_t precisionStep)
Creates a token stream for numeric values with the specified precisionStep using the given AttributeF...
NumericTokenStream(int32_t precisionStep)
Creates a token stream for numeric values with the specified precisionStep. The stream is not yet ini...
PositionIncrementAttributePtr posIncrAtt
Definition NumericTokenStream.h:80
virtual String toString()
Returns a string representation of the object.
virtual void reset()
Resets this stream to the beginning. This is an optional operation, so subclasses may or may not impl...
static const String & TOKEN_TYPE_FULL_PREC()
The full precision token gets this token type assigned.
NumericTokenStreamPtr setDoubleValue(double value)
Initializes the token stream with the supplied double value.
A TokenStream enumerates the sequence of tokens, either from Fields of a Document or from query text.
Definition TokenStream.h:44
Definition AbstractAllTermDocs.h:12
boost::shared_ptr< AttributeSource > AttributeSourcePtr
Definition LuceneTypes.h:520
boost::shared_ptr< PositionIncrementAttribute > PositionIncrementAttributePtr
Definition LuceneTypes.h:45
boost::shared_ptr< TermAttribute > TermAttributePtr
Definition LuceneTypes.h:58
boost::shared_ptr< NumericTokenStream > NumericTokenStreamPtr
Definition LuceneTypes.h:39
boost::shared_ptr< AttributeFactory > AttributeFactoryPtr
Definition LuceneTypes.h:519
boost::shared_ptr< TypeAttribute > TypeAttributePtr
Definition LuceneTypes.h:64

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