Package org.apache.lucene.analysis.boost
Class DelimitedBoostTokenFilter
- 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.boost.DelimitedBoostTokenFilter
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- All Implemented Interfaces:
Closeable
,AutoCloseable
public final class DelimitedBoostTokenFilter extends TokenFilter
Characters before the delimiter are the "token", those after are the boost.For example, if the delimiter is '|', then for the string "foo|0.7", foo is the token and 0.7 is the boost.
Note make sure your Tokenizer doesn't split on the delimiter, or this won't work
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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 DelimitedBoostTokenFilter(TokenStream input, char delimiter)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
incrementToken()
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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, endAttributes, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, removeAllAttributes, restoreState, toString
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Constructor Detail
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DelimitedBoostTokenFilter
public DelimitedBoostTokenFilter(TokenStream input, char delimiter)
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Method Detail
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incrementToken
public boolean incrementToken() throws IOException
- Specified by:
incrementToken
in classTokenStream
- Throws:
IOException
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