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 692921 2008-09-07 19:22:40Z mikemccand $

Constructor Summary

RussianAnalyzer()

RussianAnalyzer(char[] charset)
Builds an analyzer.

RussianAnalyzer(char[] charset, Map stopwords)
Builds an analyzer with the given stop words.

RussianAnalyzer(char[] charset, String[] stopwords)
Builds an analyzer with the given stop words.

Method Summary

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

getPositionIncrementGap, getPreviousTokenStream, reusableTokenStream, setPreviousTokenStream

Methods inherited from class java.lang.Object

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

Constructor Detail

RussianAnalyzer

public RussianAnalyzer()

RussianAnalyzer

public RussianAnalyzer(char[] charset)

Builds an analyzer.

RussianAnalyzer

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

Builds an analyzer with the given stop words.

RussianAnalyzer

public RussianAnalyzer(char[] charset,
                       Map stopwords)

Builds an analyzer with the given stop words.

To Do:

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 build from a RussianLetterTokenizer filtered with RussianLowerCaseFilter, StopFilter, and RussianStemFilter