Package org.apache.lucene.analysis.ja
Class JapaneseBaseFormFilter
- java.lang.Object
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- org.apache.lucene.util.AttributeSource
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- org.apache.lucene.analysis.TokenStream
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- org.apache.lucene.analysis.TokenFilter
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- org.apache.lucene.analysis.ja.JapaneseBaseFormFilter
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- All Implemented Interfaces:
Closeable,AutoCloseable,Unwrappable<TokenStream>
public final class JapaneseBaseFormFilter extends TokenFilter
Replaces term text with theBaseFormAttribute.This acts as a lemmatizer for verbs and adjectives.
To prevent terms from being stemmed use an instance of
SetKeywordMarkerFilteror a customTokenFilterthat sets theKeywordAttributebefore thisTokenStream.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource
AttributeSource.State
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Field Summary
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Fields inherited from class org.apache.lucene.analysis.TokenFilter
input
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Fields inherited from class org.apache.lucene.analysis.TokenStream
DEFAULT_TOKEN_ATTRIBUTE_FACTORY
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Constructor Summary
Constructors Constructor Description JapaneseBaseFormFilter(TokenStream input)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description booleanincrementToken()-
Methods inherited from class org.apache.lucene.analysis.TokenFilter
close, end, reset, unwrap
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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
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Constructor Detail
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JapaneseBaseFormFilter
public JapaneseBaseFormFilter(TokenStream input)
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Method Detail
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incrementToken
public boolean incrementToken() throws IOException- Specified by:
incrementTokenin classTokenStream- Throws:
IOException
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