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 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
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 *     http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.lucene.analysis.core;


import org.apache.lucene.analysis.Tokenizer;
import org.apache.lucene.analysis.util.CharTokenizer;
import org.apache.lucene.util.AttributeFactory;

A tokenizer that divides text at whitespace characters as defined by Character.isWhitespace(int). Note: That definition explicitly excludes the non-breaking space. Adjacent sequences of non-Whitespace characters form tokens.
See Also:
/** * A tokenizer that divides text at whitespace characters as defined by * {@link Character#isWhitespace(int)}. Note: That definition explicitly excludes the non-breaking space. * Adjacent sequences of non-Whitespace characters form tokens. * * @see UnicodeWhitespaceTokenizer */
public final class WhitespaceTokenizer extends CharTokenizer {
Construct a new WhitespaceTokenizer.
/** * Construct a new WhitespaceTokenizer. */
public WhitespaceTokenizer() { }
Construct a new WhitespaceTokenizer using a given AttributeFactory.
Params:
  • factory – the attribute factory to use for this Tokenizer
/** * Construct a new WhitespaceTokenizer using a given * {@link org.apache.lucene.util.AttributeFactory}. * * @param factory * the attribute factory to use for this {@link Tokenizer} */
public WhitespaceTokenizer(AttributeFactory factory) { super(factory); }
Construct a new WhitespaceTokenizer using a given AttributeFactory.
Params:
  • factory – the attribute factory to use for this Tokenizer
  • maxTokenLen – maximum token length the tokenizer will emit. Must be greater than 0 and less than MAX_TOKEN_LENGTH_LIMIT (1024*1024)
Throws:
/** * Construct a new WhitespaceTokenizer using a given * {@link org.apache.lucene.util.AttributeFactory}. * * @param factory the attribute factory to use for this {@link Tokenizer} * @param maxTokenLen maximum token length the tokenizer will emit. * Must be greater than 0 and less than MAX_TOKEN_LENGTH_LIMIT (1024*1024) * @throws IllegalArgumentException if maxTokenLen is invalid. */
public WhitespaceTokenizer(AttributeFactory factory, int maxTokenLen) { super(factory, maxTokenLen); }
Collects only characters which do not satisfy Character.isWhitespace(int).
/** Collects only characters which do not satisfy * {@link Character#isWhitespace(int)}.*/
@Override protected boolean isTokenChar(int c) { return !Character.isWhitespace(c); } }