Examples of org.apache.lucene.sandbox.queries.regex.RegexQuery

Package org.apache.lucene.sandbox.queries.regex

Examples of org.apache.lucene.sandbox.queries.regex.RegexQuery

org.apache.lucene.sandbox.queries.regex.RegexQuery
Implements the regular expression term search query. The expressions supported depend on the regular expression implementation used by way of the {@link RegexCapabilities} interface.
NOTE: You may wish to consider using the regex query support in {@link RegexpQuery} instead, as it has better performance. @see RegexTermsEnum

    }
  }


  private RegexQuery getFallbackRegexQuery(String str) {
    // No lowercase of str, so '\p{Punct}' doesn't become '\p{punct}':
    final RegexQuery query = new RegexQuery(new Term(FIELD_NAME_LOWERCASE, str));
    query.setRegexImplementation(new JavaUtilRegexCapabilities(JavaUtilRegexCapabilities.FLAG_CASE_INSENSITIVE));
    return query;
  }

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    if(regexQueryString != null && regexQueryString.length() > 0) {
      List<QueryAnalysisResult> regexQueryAnalysisResultList = getQueryAnalysisResults(regexQueryString);
      
      for(QueryAnalysisResult queryAnalysisResult : regexQueryAnalysisResultList) {
        Term term = new Term(queryAnalysisResult.getFieldName(), queryAnalysisResult.getUserQuery());
        Query regexQuery = new RegexQuery(term);
        
        logger.info("Regex Query : {}", regexQuery);
        
        resultQuery.add(regexQuery, queryAnalysisResult.getOccur());
      }

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  }


  /** Return a query with the old (and slow, but more complete) way Lucene implements regular expressions. */
  private RegexQuery getFallbackRegexQuery(String str, Element element) {
    // No lowercase of str, so '\p{Punct}' doesn't become '\p{punct}':
    final RegexQuery query = new RegexQuery(new Term(element.isCaseSensitive() ? FIELD_NAME : FIELD_NAME_LOWERCASE, str));
    query.setRegexImplementation(new JavaUtilRegexCapabilities(JavaUtilRegexCapabilities.FLAG_CASE_INSENSITIVE));
    return query;
  }

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