org.apache.lucene.analysis.miscellaneous.KeepWordFilter

All Implemented Interfaces:: Closeable, AutoCloseable, Unwrappable<TokenStream>

public final class KeepWordFilter extends FilteringTokenFilter

A TokenFilter that only keeps tokens with text contained in the required words. This filter behaves like the inverse of StopFilter.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource
AttributeSource.State
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
Constructor Summary

Constructors

Constructor

Description

KeepWordFilter(TokenStream in, CharArraySet words)

Create a new KeepWordFilter.
Method Summary

Modifier and Type

Method

Description

boolean

accept()

Methods inherited from class org.apache.lucene.analysis.FilteringTokenFilter
end, incrementToken, reset

Methods inherited from class org.apache.lucene.analysis.TokenFilter
close, 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

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Class KeepWordFilter

Nested Class Summary