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.

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

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class TestPayloadAnalyzer extends Analyzer {


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

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  public static class QPTestAnalyzer extends Analyzer {


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

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  public static class QPTestAnalyzer extends Analyzer {


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

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  public static class QPTestAnalyzer extends Analyzer {


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

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  }


  class PayloadAnalyzer extends Analyzer {


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

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  }
  
  public class TestPayloadAnalyzer extends Analyzer {


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

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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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final class TestPayloadAnalyzer extends Analyzer {


  @Override
  public TokenStream tokenStream(String fieldName, Reader reader) {
    TokenStream result = new LowerCaseTokenizer(LuceneTestCase.TEST_VERSION_CURRENT, reader);
    return new PayloadFilter(result, fieldName);
  }

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  }


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

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