org.apache.lucene.analysis.ru

Class RussianAnalyzer

java.lang.Object

org.apache.lucene.analysis.Analyzer

org.apache.lucene.analysis.ru.RussianAnalyzer

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.

Version:

$Id: RussianAnalyzer.java 829134 2009-10-23 17:18:53Z mikemccand $

Field Summary

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

overridesTokenStreamMethod

Constructor Summary

Constructors

Constructor and Description
RussianAnalyzer() Deprecated. Use RussianAnalyzer(Version) instead
RussianAnalyzer(char[] charset) Deprecated. Use RussianAnalyzer(Version) instead.
RussianAnalyzer(char[] charset, Map stopwords) Deprecated. Use RussianAnalyzer(Version, Map) instead.
RussianAnalyzer(char[] charset, String[] stopwords) Deprecated. Use RussianAnalyzer(Version,String[]) instead.
RussianAnalyzer(Map stopwords) Deprecated. Use RussianAnalyzer(Version, Map) instead.
RussianAnalyzer(String[] stopwords) Deprecated. Use RussianAnalyzer(Version,String[]) instead.
RussianAnalyzer(Version matchVersion)
RussianAnalyzer(Version matchVersion, Map stopwords) Builds an analyzer with the given stop words.
RussianAnalyzer(Version matchVersion, String[] stopwords) Builds an analyzer with the given stop words.

Method Summary

Methods

Modifier and Type	Method and Description
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()

Deprecated. Use RussianAnalyzer(Version) instead

RussianAnalyzer

public RussianAnalyzer(Version matchVersion)

RussianAnalyzer

public RussianAnalyzer(char[] charset)

Deprecated. Use RussianAnalyzer(Version) instead.

Builds an analyzer.

RussianAnalyzer

public RussianAnalyzer(char[] charset,
               String[] stopwords)

Deprecated. Use RussianAnalyzer(Version,String[]) instead.

Builds an analyzer with the given stop words.

RussianAnalyzer

public RussianAnalyzer(String[] stopwords)

Deprecated. Use RussianAnalyzer(Version,String[]) instead.

Builds an analyzer with the given stop words.

RussianAnalyzer

public RussianAnalyzer(Version matchVersion,
               String[] stopwords)

Builds an analyzer with the given stop words.

RussianAnalyzer

public RussianAnalyzer(char[] charset,
               Map stopwords)

Deprecated. Use RussianAnalyzer(Version, Map) instead.

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

RussianAnalyzer

public RussianAnalyzer(Map stopwords)

Deprecated. Use RussianAnalyzer(Version, Map) instead.

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

RussianAnalyzer

public RussianAnalyzer(Version matchVersion,
               Map stopwords)

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