Package org.apache.lucene.analysis.core

Class WhitespaceTokenizer

java.lang.Object

org.apache.lucene.util.AttributeSource

org.apache.lucene.analysis.TokenStream

org.apache.lucene.analysis.Tokenizer

org.apache.lucene.analysis.util.CharTokenizer

org.apache.lucene.analysis.core.WhitespaceTokenizer

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public final class WhitespaceTokenizer
extends CharTokenizer

A WhitespaceTokenizer is a tokenizer that divides text at whitespace. Adjacent sequences of non-Whitespace characters form tokens.

You must specify the required Version compatibility when creating WhitespaceTokenizer:

• As of 3.1, CharTokenizer uses an int based API to normalize and detect token characters. See CharTokenizer.isTokenChar(int) and CharTokenizer.normalize(int) for details.

Nested Class Summary

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

AttributeSource.AttributeFactory, AttributeSource.State

Constructor Summary

Constructors

Constructor	Description
WhitespaceTokenizer(Version matchVersion, java.io.Reader in)	Construct a new WhitespaceTokenizer.
WhitespaceTokenizer(Version matchVersion, AttributeSource.AttributeFactory factory, java.io.Reader in)	Construct a new WhitespaceTokenizer using a given AttributeSource.AttributeFactory.

Method Summary

Methods inherited from class org.apache.lucene.analysis.util.CharTokenizer

end, incrementToken, reset

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

close, setReader

Methods inherited from class org.apache.lucene.util.AttributeSource

addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, copyTo, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, reflectAsString, reflectWith, restoreState, toString

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

WhitespaceTokenizer

public WhitespaceTokenizer(Version matchVersion,
                           java.io.Reader in)

Construct a new WhitespaceTokenizer. * @param matchVersion Lucene version to match See {@link above}

Parameters:

in - the input to split up into tokens

WhitespaceTokenizer

public WhitespaceTokenizer(Version matchVersion,
                           AttributeSource.AttributeFactory factory,
                           java.io.Reader in)

Construct a new WhitespaceTokenizer using a given AttributeSource.AttributeFactory.

Parameters:

matchVersion - Lucene version to match See {@link above}

factory - the attribute factory to use for this Tokenizer

in - the input to split up into tokens