org.apache.lucene.analysis.ja

Class JapaneseAnalyzer

java.lang.Object

org.apache.lucene.analysis.Analyzer

org.apache.lucene.analysis.StopwordAnalyzerBase

org.apache.lucene.analysis.ja.JapaneseAnalyzer

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class JapaneseAnalyzer
extends StopwordAnalyzerBase

Analyzer for Japanese that uses morphological analysis.

Since:

3.6.0

See Also:

JapaneseTokenizer

Nested Class Summary

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

Analyzer.ReuseStrategy, Analyzer.TokenStreamComponents

Field Summary

Fields inherited from class org.apache.lucene.analysis.StopwordAnalyzerBase

stopwords

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

GLOBAL_REUSE_STRATEGY, PER_FIELD_REUSE_STRATEGY

Constructor Summary

Constructors

Constructor and Description
JapaneseAnalyzer()
JapaneseAnalyzer(UserDictionary userDict, JapaneseTokenizer.Mode mode, CharArraySet stopwords, java.util.Set<java.lang.String> stoptags)

Method Summary

Modifier and Type	Method and Description
protected Analyzer.TokenStreamComponents	createComponents(java.lang.String fieldName) Creates a new Analyzer.TokenStreamComponents instance for this analyzer.
static CharArraySet	getDefaultStopSet()
static java.util.Set<java.lang.String>	getDefaultStopTags()
protected TokenStream	normalize(java.lang.String fieldName, TokenStream in) Wrap the given TokenStream in order to apply normalization filters.

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

getStopwordSet, loadStopwordSet, loadStopwordSet, loadStopwordSet

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

attributeFactory, close, getOffsetGap, getPositionIncrementGap, getReuseStrategy, getVersion, initReader, initReaderForNormalization, normalize, setVersion, tokenStream, tokenStream

Methods inherited from class java.lang.Object

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

Constructor Detail

JapaneseAnalyzer

public JapaneseAnalyzer()

JapaneseAnalyzer

public JapaneseAnalyzer(UserDictionary userDict,
                        JapaneseTokenizer.Mode mode,
                        CharArraySet stopwords,
                        java.util.Set<java.lang.String> stoptags)

Method Detail

getDefaultStopSet

public static CharArraySet getDefaultStopSet()

getDefaultStopTags

public static java.util.Set<java.lang.String> getDefaultStopTags()

createComponents

protected Analyzer.TokenStreamComponents createComponents(java.lang.String fieldName)

Description copied from class: Analyzer

Creates a new Analyzer.TokenStreamComponents instance for this analyzer.

Specified by:

createComponents in class Analyzer

Parameters:

fieldName - the name of the fields content passed to the Analyzer.TokenStreamComponents sink as a reader

Returns:

the Analyzer.TokenStreamComponents for this analyzer.

normalize

protected TokenStream normalize(java.lang.String fieldName,
                                TokenStream in)

Description copied from class: Analyzer

Wrap the given TokenStream in order to apply normalization filters. The default implementation returns the TokenStream as-is. This is used by Analyzer.normalize(String, String).

Overrides:

normalize in class Analyzer