/
LowerCaseKeywordAnalyzer.java
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/
LowerCaseKeywordAnalyzer.java
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/**
* Copyright (c) 2002-2014 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.index.impl.lucene;
import org.apache.lucene.analysis.Analyzer;
import org.apache.lucene.analysis.TokenFilter;
import org.apache.lucene.analysis.Tokenizer;
import org.apache.lucene.analysis.core.KeywordTokenizer;
import org.apache.lucene.analysis.core.LowerCaseFilter;
import java.io.Reader;
public final class LowerCaseKeywordAnalyzer extends Analyzer
{
@Override
protected TokenStreamComponents createComponents( String fieldName, Reader reader )
{
Tokenizer source = new KeywordTokenizer( reader );
TokenFilter filter = new LowerCaseFilter( LuceneDataSource.LUCENE_VERSION, source );
return new TokenStreamComponents(source, filter);
}
@Override
public String toString()
{
return getClass().getSimpleName();
}
}