org.apache.lucene.analysis.ru
Class RussianAnalyzer

java.lang.Object
  org.apache.lucene.analysis.Analyzer
      org.apache.lucene.analysis.ru.RussianAnalyzer

All Implemented Interfaces:

Closeable

public final class RussianAnalyzer
extends Analyzer

Analyzer for Russian language.

Supports an external list of stopwords (words that will not be indexed at all). A default set of stopwords is used unless an alternative list is specified.

Field Summary

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

overridesTokenStreamMethod

Constructor Summary

RussianAnalyzer(Version matchVersion)

RussianAnalyzer(Version matchVersion, Map<?,?> stopwords)
Deprecated. use RussianAnalyzer(Version, Set) instead

RussianAnalyzer(Version matchVersion, Set<?> stopwords)
Builds an analyzer with the given stop words

RussianAnalyzer(Version matchVersion, String... stopwords)
Deprecated. use RussianAnalyzer(Version, Set) instead

Method Summary

TokenStream	reusableTokenStream(String fieldName, Reader reader) Returns a (possibly reused) TokenStream which tokenizes all the text in the provided Reader.
TokenStream	tokenStream(String fieldName, Reader reader) Creates a TokenStream which tokenizes all the text in the provided Reader.

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

close, getOffsetGap, getPositionIncrementGap, getPreviousTokenStream, setOverridesTokenStreamMethod, setPreviousTokenStream

Methods inherited from class java.lang.Object

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

Constructor Detail

RussianAnalyzer

public RussianAnalyzer(Version matchVersion)

RussianAnalyzer

public RussianAnalyzer(Version matchVersion,
                       String... stopwords)

Deprecated. use RussianAnalyzer(Version, Set) instead

Builds an analyzer with the given stop words.

RussianAnalyzer

public RussianAnalyzer(Version matchVersion,
                       Set<?> stopwords)

Builds an analyzer with the given stop words

Parameters:

matchVersion - lucene compatibility version

stopwords - a stopword set

RussianAnalyzer

public RussianAnalyzer(Version matchVersion,
                       Map<?,?> stopwords)

Deprecated. use RussianAnalyzer(Version, Set) instead

Builds an analyzer with the given stop words. TODO: create a Set version of this ctor

Method Detail

tokenStream

public TokenStream tokenStream(String fieldName,
                               Reader reader)

Creates a TokenStream which tokenizes all the text in the provided Reader.

Specified by:

tokenStream in class Analyzer

Returns:

A TokenStream built from a RussianLetterTokenizer filtered with RussianLowerCaseFilter, StopFilter, and RussianStemFilter

reusableTokenStream

public TokenStream reusableTokenStream(String fieldName,
                                       Reader reader)
                                throws IOException

Returns a (possibly reused) TokenStream which tokenizes all the text in the provided Reader.

Overrides:

reusableTokenStream in class Analyzer

Returns:

A TokenStream built from a RussianLetterTokenizer filtered with RussianLowerCaseFilter, StopFilter, and RussianStemFilter

Throws:

IOException