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annotate src/goodjava/lucene/analysis/LowercaseAnalyzer.java @ 1770:6c01d54edcac

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author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 15 Jun 2023 17:55:47 -0600
parents 13cbce740e1e
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 package goodjava.lucene.analysis;
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2
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3 import java.io.Reader;
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4 import org.apache.lucene.util.Version;
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5 import org.apache.lucene.analysis.Analyzer;
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6 import org.apache.lucene.analysis.Tokenizer;
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7 import org.apache.lucene.analysis.TokenStream;
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8 import org.apache.lucene.analysis.core.KeywordTokenizer;
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9 import org.apache.lucene.analysis.core.LowerCaseFilter;
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12 public final class LowercaseAnalyzer extends Analyzer {
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13 private final Version matchVersion;
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14
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15 public LowercaseAnalyzer(Version matchVersion) {
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16 this.matchVersion = matchVersion;
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17 }
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18
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19 protected TokenStreamComponents createComponents( String fieldName, Reader reader ) {
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20 Tokenizer source = new KeywordTokenizer(reader);
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21 TokenStream filter = new LowerCaseFilter(matchVersion,source);
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22 return new TokenStreamComponents(source,filter);
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23 }
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24 }