Package org.apache.lucene.analysis.en
Class KStemFilter
- 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.en.KStemFilter
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- All Implemented Interfaces:
Closeable
,AutoCloseable
public final class KStemFilter extends TokenFilter
A high-performance kstem filter for english. See "Viewing Morphology as an Inference Process" (Krovetz, R., Proceedings of the Sixteenth Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, 191-203, 1993). All terms must already be lowercased for this filter to work correctly.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource
AttributeSource.AttributeFactory, 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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Constructor Summary
Constructors Constructor Description KStemFilter(TokenStream in)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
incrementToken()
Returns the next, stemmed, input Token.-
Methods inherited from class org.apache.lucene.analysis.TokenFilter
close, end, reset
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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
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Constructor Detail
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KStemFilter
public KStemFilter(TokenStream in)
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Method Detail
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incrementToken
public boolean incrementToken() throws IOException
Returns the next, stemmed, input Token.- Specified by:
incrementToken
in classTokenStream
- Returns:
- The stemed form of a token.
- Throws:
IOException
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