Class PatternTypingFilter
java.lang.Object
org.apache.lucene.util.AttributeSource
org.apache.lucene.analysis.TokenStream
org.apache.lucene.analysis.TokenFilter
org.apache.lucene.analysis.pattern.PatternTypingFilter
- All Implemented Interfaces:
Closeable
,AutoCloseable
,Unwrappable<TokenStream>
Set a type attribute to a parameterized value when tokens are matched by any of a several regex
patterns. The value set in the type attribute is parameterized with the match groups of the regex
used for matching. In combination with TypeAsSynonymFilter and DropIfFlagged filter this can
supply complex synonym patterns that are protected from subsequent analysis, and optionally drop
the original term based on the flag set in this filter. See
PatternTypingFilterFactory
for full documentation.- Since:
- 8.8.0
- See Also:
-
Nested Class Summary
Modifier and TypeClassDescriptionstatic class
Value holding class for pattern typing rules.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
ConstructorDescriptionPatternTypingFilter
(TokenStream input, PatternTypingFilter.PatternTypingRule... replacementAndFlagByPattern) -
Method Summary
Methods inherited from class org.apache.lucene.analysis.TokenFilter
close, end, reset, 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
-
PatternTypingFilter
public PatternTypingFilter(TokenStream input, PatternTypingFilter.PatternTypingRule... replacementAndFlagByPattern)
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Method Details
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incrementToken
- Specified by:
incrementToken
in classTokenStream
- Throws:
IOException
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