
org.elasticsearch.index.analysis.LowercaseNormalizer Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of elasticsearch Show documentation
Show all versions of elasticsearch Show documentation
Elasticsearch - Open Source, Distributed, RESTful Search Engine
/*
* Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
* or more contributor license agreements. Licensed under the Elastic License
* 2.0 and the Server Side Public License, v 1; you may not use this file except
* in compliance with, at your election, the Elastic License 2.0 or the Server
* Side Public License, v 1.
*/
package org.elasticsearch.index.analysis;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.LowerCaseFilter;
import org.apache.lucene.analysis.TokenStream;
import org.apache.lucene.analysis.Tokenizer;
import org.apache.lucene.analysis.core.KeywordTokenizer;
/** Normalizer used to lowercase values */
public final class LowercaseNormalizer extends Analyzer {
@Override
protected TokenStreamComponents createComponents(String s) {
final Tokenizer tokenizer = new KeywordTokenizer();
TokenStream stream = new LowerCaseFilter(tokenizer);
return new TokenStreamComponents(tokenizer, stream);
}
@Override
protected TokenStream normalize(String fieldName, TokenStream in) {
return new LowerCaseFilter(in);
}
}
© 2015 - 2025 Weber Informatics LLC | Privacy Policy