org.apache.lucene.analysis.ja.JapaneseBaseFormFilter

All Implemented Interfaces:: Closeable, AutoCloseable, Unwrappable<TokenStream>

public final class JapaneseBaseFormFilter extends TokenFilter

Replaces term text with the BaseFormAttribute.

This acts as a lemmatizer for verbs and adjectives.

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

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource
AttributeSource.State
Field Summary

Fields inherited from class org.apache.lucene.analysis.TokenFilter
input

Fields inherited from class org.apache.lucene.analysis.TokenStream
DEFAULT_TOKEN_ATTRIBUTE_FACTORY
Constructor Summary

Constructors

Constructor

Description

JapaneseBaseFormFilter(TokenStream input)
Method Summary

Modifier and Type

Method

Description

boolean

incrementToken()

Methods inherited from class org.apache.lucene.analysis.TokenFilter
close, end, reset, unwrap

Methods inherited from class org.apache.lucene.util.AttributeSource
addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, endAttributes, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, removeAllAttributes, restoreState, toString

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

Constructor Details
- JapaneseBaseFormFilter
  
  public JapaneseBaseFormFilter(TokenStream input)
Method Details
- incrementToken
  
  public boolean incrementToken() throws IOException
  
  Specified by:
  
  incrementToken in class TokenStream
  
  Throws:
  
  IOException

Class JapaneseBaseFormFilter

Nested Class Summary