Class SuggestStopFilter
- 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.search.suggest.analyzing.SuggestStopFilter
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- All Implemented Interfaces:
Closeable
,AutoCloseable
,Unwrappable<TokenStream>
public final class SuggestStopFilter extends TokenFilter
LikeStopFilter
except it will not remove the last token if that token was not followed by some token separator. For example, a query 'find the' would preserve the 'the' since it was not followed by a space or punctuation or something, and mark it KEYWORD so future stemmers won't touch it either while a query like "find the popsicle' would remove 'the' as a stopword.Normally you'd use the ordinary
StopFilter
in your indexAnalyzer and then this class in your queryAnalyzer, when using one of the analyzing suggesters.
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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 SuggestStopFilter(TokenStream input, CharArraySet stopWords)
Sole constructor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
end()
boolean
incrementToken()
void
reset()
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Methods inherited from class org.apache.lucene.analysis.TokenFilter
close, 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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SuggestStopFilter
public SuggestStopFilter(TokenStream input, CharArraySet stopWords)
Sole constructor.
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Method Detail
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reset
public void reset() throws IOException
- Overrides:
reset
in classTokenFilter
- Throws:
IOException
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end
public void end() throws IOException
- Overrides:
end
in classTokenFilter
- Throws:
IOException
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incrementToken
public boolean incrementToken() throws IOException
- Specified by:
incrementToken
in classTokenStream
- Throws:
IOException
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