org.apache.lucene.analysis.miscellaneous

Class UniqueTokenFilter

java.lang.Object

org.apache.lucene.util.AttributeSource

org.apache.lucene.analysis.TokenStream

org.apache.lucene.analysis.TokenFilter

org.apache.lucene.analysis.miscellaneous.UniqueTokenFilter

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class UniqueTokenFilter
extends org.apache.lucene.analysis.TokenFilter

A token filter that generates unique tokens. Can remove unique tokens only on the same position increments as well.

Nested Class Summary

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

org.apache.lucene.util.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 and Description
UniqueTokenFilter(org.apache.lucene.analysis.TokenStream in)
UniqueTokenFilter(org.apache.lucene.analysis.TokenStream in, boolean onlyOnSamePosition)

Method Summary

Modifier and Type	Method and Description
boolean	incrementToken()
void	reset()

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

close, end

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

Constructor Detail

UniqueTokenFilter

public UniqueTokenFilter(org.apache.lucene.analysis.TokenStream in)

UniqueTokenFilter

public UniqueTokenFilter(org.apache.lucene.analysis.TokenStream in,
                         boolean onlyOnSamePosition)

Method Detail

incrementToken

public final boolean incrementToken()
                             throws java.io.IOException

Specified by:

incrementToken in class org.apache.lucene.analysis.TokenStream

Throws:

java.io.IOException

reset

public final void reset()
                 throws java.io.IOException

Overrides:

reset in class org.apache.lucene.analysis.TokenFilter

Throws:

java.io.IOException