Class KeywordRepeatFilter
java.lang.Object
org.apache.lucene.util.AttributeSource
org.apache.lucene.analysis.TokenStream
org.apache.lucene.analysis.TokenFilter
org.apache.lucene.analysis.miscellaneous.KeywordRepeatFilter
- All Implemented Interfaces:
Closeable
,AutoCloseable
,Unwrappable<TokenStream>
This TokenFilterĀ emits each incoming token twice once as keyword and once non-keyword, in other
words once with
KeywordAttribute.setKeyword(boolean)
set to true
and once
set to false
. This is useful if used with a stem filter that respects the KeywordAttribute
to index the stemmed and the un-stemmed version of a term into the same field.-
Nested Class Summary
Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource
AttributeSource.State
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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
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Constructor Summary
ConstructorDescriptionKeywordRepeatFilter
(TokenStream input) Construct a token stream filtering the given input. -
Method Summary
Methods inherited from class org.apache.lucene.analysis.TokenFilter
close, end, 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
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Constructor Details
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KeywordRepeatFilter
Construct a token stream filtering the given input.
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Method Details
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incrementToken
- Specified by:
incrementToken
in classTokenStream
- Throws:
IOException
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reset
- Overrides:
reset
in classTokenFilter
- Throws:
IOException
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