org.sindice.siren.analysis

Class NumericAnalyzer

java.lang.Object

org.apache.lucene.analysis.Analyzer

org.sindice.siren.analysis.NumericAnalyzer

All Implemented Interfaces:

Closeable, AutoCloseable

Direct Known Subclasses:

DoubleNumericAnalyzer, FloatNumericAnalyzer, IntNumericAnalyzer, LongNumericAnalyzer

public abstract class NumericAnalyzer
extends org.apache.lucene.analysis.Analyzer

Abstraction over the analyzer for numeric datatype.

At indexing time, this class provides a NumericTokenizer for indexing numeric values that can be used by a NodeNumericRangeQuery. At query time, this class acts as a container for parameters that are required in the query parsers to process numeric range queries.

See NodeNumericRangeQuery for more information about numeric range queries.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	NumericAnalyzer.NumericParser<T extends Number>

Nested classes/interfaces inherited from class org.apache.lucene.analysis.Analyzer

org.apache.lucene.analysis.Analyzer.GlobalReuseStrategy, org.apache.lucene.analysis.Analyzer.PerFieldReuseStrategy, org.apache.lucene.analysis.Analyzer.ReuseStrategy, org.apache.lucene.analysis.Analyzer.TokenStreamComponents

Field Summary

Fields

Modifier and Type	Field and Description
protected int	precisionStep

Constructor Summary

Constructors

Constructor and Description
NumericAnalyzer(int precisionStep)

Method Summary

Methods

Modifier and Type	Method and Description
abstract NumericAnalyzer.NumericParser<? extends Number>	getNumericParser() Returns the NumericAnalyzer.NumericParser associated to this analyzer.
int	getPrecisionStep() Returns the precision step of this analyzer.

Methods inherited from class org.apache.lucene.analysis.Analyzer

close, createComponents, getOffsetGap, getPositionIncrementGap, initReader, tokenStream

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

precisionStep

protected final int precisionStep

Constructor Detail

NumericAnalyzer

public NumericAnalyzer(int precisionStep)

Method Detail

getPrecisionStep

public int getPrecisionStep()

Returns the precision step of this analyzer.

getNumericParser

public abstract NumericAnalyzer.NumericParser<? extends Number> getNumericParser()

Returns the NumericAnalyzer.NumericParser associated to this analyzer.

Type Parameters:

T -