org.apache.lucene.analysis.ru
Class RussianStemFilter

java.lang.Object
  extended by org.apache.lucene.util.AttributeSource
      extended by org.apache.lucene.analysis.TokenStream
          extended by org.apache.lucene.analysis.TokenFilter
              extended by org.apache.lucene.analysis.ru.RussianStemFilter
All Implemented Interfaces:
Closeable

Deprecated. Use SnowballFilter with RussianStemmer instead, which has the same functionality. This filter will be removed in Lucene 4.0

@Deprecated
public final class RussianStemFilter
extends TokenFilter

A TokenFilter that stems Russian words.

The implementation was inspired by GermanStemFilter. The input should be filtered by LowerCaseFilter before passing it to RussianStemFilter , because RussianStemFilter only works with lowercase characters.

To prevent terms from being stemmed use an instance of KeywordMarkerFilter or a custom TokenFilter that sets the KeywordAttribute before this TokenStream.

See Also:
KeywordMarkerFilter

Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource
AttributeSource.AttributeFactory, AttributeSource.State
 
Field Summary
 
Fields inherited from class org.apache.lucene.analysis.TokenFilter
input
 
Constructor Summary
RussianStemFilter(TokenStream in)
          Deprecated.  
 
Method Summary
 boolean incrementToken()
          Deprecated. Returns the next token in the stream, or null at EOS
 void setStemmer(org.apache.lucene.analysis.ru.RussianStemmer stemmer)
          Deprecated. Set a alternative/custom RussianStemmer for this filter.
 
Methods inherited from class org.apache.lucene.analysis.TokenFilter
close, end, reset
 
Methods inherited from class org.apache.lucene.util.AttributeSource
addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, restoreState, toString
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

RussianStemFilter

public RussianStemFilter(TokenStream in)
Deprecated. 
Method Detail

incrementToken

public final boolean incrementToken()
                             throws IOException
Deprecated. 
Returns the next token in the stream, or null at EOS

Specified by:
incrementToken in class TokenStream
Returns:
false for end of stream; true otherwise
Throws:
IOException

setStemmer

public void setStemmer(org.apache.lucene.analysis.ru.RussianStemmer stemmer)
Deprecated. 
Set a alternative/custom RussianStemmer for this filter.



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