Examples of org.apache.lucene.analysis.LowerCaseTokenizer

org.apache.lucene.analysis.LowerCaseTokenizer
LowerCaseTokenizer performs the function of LetterTokenizer and LowerCaseFilter together. It divides text at non-letters and converts them to lower case. While it is functionally equivalent to the combination of LetterTokenizer and LowerCaseFilter, there is a performance advantage to doing the two tasks at once, hence this (redundant) implementation.
Note: this does a decent job for most European languages, but does a terrible job for some Asian languages, where words are not separated by spaces.


  public static class QPTestAnalyzer extends Analyzer {


    /** Filters LowerCaseTokenizer with StopFilter. */
    public final TokenStream tokenStream(String fieldName, Reader reader) {
      return new QPTestFilter(new LowerCaseTokenizer(reader));
    }

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   * 
   * @see org.apache.lucene.analysis.Analyzer#tokenStream(java.lang.String,
   *      java.io.Reader)
   */
  public TokenStream tokenStream(String arg0, Reader arg1) {
    return new SynonymTokenizer(new LowerCaseTokenizer(arg1), synonyms);
  }

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  public static class QPTestAnalyzer extends Analyzer {


    /** Filters LowerCaseTokenizer with StopFilter. */
    public final TokenStream tokenStream(String fieldName, Reader reader) {
      return new QPTestFilter(new LowerCaseTokenizer(reader));
    }

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    assertEquals("Wrong payload for the target " + target + ": " + b[0], (byte) target, b[0]);
  }


  private static class PayloadAnalyzer extends Analyzer {
    public TokenStream tokenStream(String fieldName, Reader reader) {
      return new PayloadFilter(new LowerCaseTokenizer(reader));
    }

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  public static class QPTestAnalyzer extends Analyzer {


    /** Filters LowerCaseTokenizer with StopFilter. */
    public final TokenStream tokenStream(String fieldName, Reader reader) {
      return new QPTestFilter(new LowerCaseTokenizer(reader));
    }

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  public static final class QPTestAnalyzer extends Analyzer {


    /** Filters LowerCaseTokenizer with StopFilter. */
    @Override
    public final TokenStream tokenStream(String fieldName, Reader reader) {
      return new QPTestFilter(new LowerCaseTokenizer(TEST_VERSION_CURRENT, reader));
    }

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  public static final class QPTestAnalyzer extends Analyzer {


    /** Filters LowerCaseTokenizer with StopFilter. */
    @Override
    public final TokenStream tokenStream(String fieldName, Reader reader) {
      return new QPTestFilter(new LowerCaseTokenizer(TEST_VERSION_CURRENT, reader));
    }

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  public static final class QPTestAnalyzer extends Analyzer {


    /** Filters LowerCaseTokenizer with StopFilter. */
    @Override
    public final TokenStream tokenStream(String fieldName, Reader reader) {
      return new QPTestFilter(new LowerCaseTokenizer(TEST_VERSION_CURRENT, reader));
    }

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 * @author yonik
 * @version $Id: LowerCaseTokenizerFactory.java 472574 2006-11-08 18:25:52Z yonik $
 */
public class LowerCaseTokenizerFactory extends BaseTokenizerFactory {
  public TokenStream create(Reader input) {
    return new LowerCaseTokenizer(input);
  }

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}


class TestPayloadAnalyzer extends Analyzer {


  public TokenStream tokenStream(String fieldName, Reader reader) {
    TokenStream result = new LowerCaseTokenizer(reader);
    return new PayloadFilter(result, fieldName);
  }

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