org.apache.lucene.analysis
Class WhitespaceTokenizer

java.lang.Object
  extended by org.apache.lucene.util.AttributeSource
      extended by org.apache.lucene.analysis.TokenStream
          extended by org.apache.lucene.analysis.Tokenizer
              extended by org.apache.lucene.analysis.CharTokenizer
                  extended by org.apache.lucene.analysis.WhitespaceTokenizer
All Implemented Interfaces:
Closeable

public class WhitespaceTokenizer
extends CharTokenizer

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


Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.lucene.util.AttributeSource
AttributeSource.AttributeFactory, AttributeSource.State
 
Field Summary
 
Fields inherited from class org.apache.lucene.analysis.Tokenizer
input
 
Constructor Summary
WhitespaceTokenizer(AttributeSource.AttributeFactory factory, Reader in)
          Construct a new WhitespaceTokenizer using a given AttributeSource.AttributeFactory.
WhitespaceTokenizer(AttributeSource source, Reader in)
          Construct a new WhitespaceTokenizer using a given AttributeSource.
WhitespaceTokenizer(Reader in)
          Construct a new WhitespaceTokenizer.
 
Method Summary
protected  boolean isTokenChar(char c)
          Collects only characters which do not satisfy Character.isWhitespace(char).
 
Methods inherited from class org.apache.lucene.analysis.CharTokenizer
end, incrementToken, normalize, reset
 
Methods inherited from class org.apache.lucene.analysis.Tokenizer
close, correctOffset
 
Methods inherited from class org.apache.lucene.analysis.TokenStream
reset
 
Methods inherited from class org.apache.lucene.util.AttributeSource
addAttribute, addAttributeImpl, captureState, clearAttributes, cloneAttributes, equals, getAttribute, getAttributeClassesIterator, getAttributeFactory, getAttributeImplsIterator, hasAttribute, hasAttributes, hashCode, restoreState, toString
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Constructor Detail

WhitespaceTokenizer

public WhitespaceTokenizer(Reader in)
Construct a new WhitespaceTokenizer.


WhitespaceTokenizer

public WhitespaceTokenizer(AttributeSource source,
                           Reader in)
Construct a new WhitespaceTokenizer using a given AttributeSource.


WhitespaceTokenizer

public WhitespaceTokenizer(AttributeSource.AttributeFactory factory,
                           Reader in)
Construct a new WhitespaceTokenizer using a given AttributeSource.AttributeFactory.

Method Detail

isTokenChar

protected boolean isTokenChar(char c)
Collects only characters which do not satisfy Character.isWhitespace(char).

Specified by:
isTokenChar in class CharTokenizer


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