java.lang.Object
- org.apache.lucene.analysis.Analyzer
- - org.apache.lucene.analysis.ReusableAnalyzerBase
  - - org.apache.lucene.analysis.StopwordAnalyzerBase
    - - org.apache.lucene.analysis.ru.RussianAnalyzer

All Implemented Interfaces:

Closeable, AutoCloseable
```
public final class RussianAnalyzer
extends StopwordAnalyzerBase
```
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.

You must specify the required Version compatibility when creating RussianAnalyzer:
- As of 3.1, StandardTokenizer is used, Snowball stemming is done with SnowballFilter, and Snowball stopwords are used by default.

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.lucene.analysis.ReusableAnalyzerBase
  ReusableAnalyzerBase.TokenStreamComponents

Field Summary

Fields
Modifier and Type Field Description

static String DEFAULT_STOPWORD_FILE
File containing default Russian stopwords.
- Fields inherited from class org.apache.lucene.analysis.StopwordAnalyzerBase
  matchVersion, stopwords

Constructor Summary

Constructors
Constructor	Description
`RussianAnalyzer(Version matchVersion)`
`RussianAnalyzer(Version matchVersion, String... stopwords)`	Deprecated. use `RussianAnalyzer(Version, Set)` instead
`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, Set<?> stopwords, Set<?> stemExclusionSet)`	Builds an analyzer with the given stop words

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected ReusableAnalyzerBase.TokenStreamComponents`	`createComponents(String fieldName, Reader reader)`	Creates `ReusableAnalyzerBase.TokenStreamComponents` used to tokenize all the text in the provided `Reader`.
`static Set<?>`	`getDefaultStopSet()`	Returns an unmodifiable instance of the default stop-words set.

Methods inherited from class org.apache.lucene.analysis.StopwordAnalyzerBase
getStopwordSet, loadStopwordSet, loadStopwordSet, loadStopwordSet

Methods inherited from class org.apache.lucene.analysis.ReusableAnalyzerBase
initReader, reusableTokenStream, tokenStream

Methods inherited from class org.apache.lucene.analysis.Analyzer
close, getOffsetGap, getPositionIncrementGap, getPreviousTokenStream, setPreviousTokenStream

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - DEFAULT_STOPWORD_FILE
```
public static final String DEFAULT_STOPWORD_FILE
```
    File containing default Russian stopwords.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - RussianAnalyzer
```
public RussianAnalyzer(Version matchVersion)
```
  - RussianAnalyzer
```
@Deprecated
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,
                       Set<?> stopwords,
                       Set<?> stemExclusionSet)
```
    Builds an analyzer with the given stop words
    
    Parameters:
    
    matchVersion - lucene compatibility version
    
    stopwords - a stopword set
    
    stemExclusionSet - a set of words not to be stemmed
  - RussianAnalyzer
```
@Deprecated
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
  - getDefaultStopSet
```
public static Set<?> getDefaultStopSet()
```
    Returns an unmodifiable instance of the default stop-words set.
    
    Returns:
    
    an unmodifiable instance of the default stop-words set.
  - createComponents
```
protected ReusableAnalyzerBase.TokenStreamComponents createComponents(String fieldName,
                                                                      Reader reader)
```
    Creates ReusableAnalyzerBase.TokenStreamComponents used to tokenize all the text in the provided Reader.
    
    Specified by:
    
    createComponents in class ReusableAnalyzerBase
    
    Parameters:
    
    fieldName - the name of the fields content passed to the ReusableAnalyzerBase.TokenStreamComponents sink as a reader
    
    reader - the reader passed to the Tokenizer constructor
    
    Returns:
    
    ReusableAnalyzerBase.TokenStreamComponents built from a StandardTokenizer filtered with StandardFilter, LowerCaseFilter, StopFilter , KeywordMarkerFilter if a stem exclusion set is provided, and SnowballFilter

Class RussianAnalyzer

Nested Class Summary

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

Field Summary

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

Constructor Summary

Method Summary

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

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

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

Methods inherited from class java.lang.Object

Field Detail

DEFAULT_STOPWORD_FILE

Constructor Detail

RussianAnalyzer

RussianAnalyzer

RussianAnalyzer

RussianAnalyzer

RussianAnalyzer

Method Detail

getDefaultStopSet

createComponents