Examples of org.apache.lucene.search.WildcardQuery

org.apache.lucene.search.WildcardQuery
Implements the wildcard search query. Supported wildcards are *, which matches any character sequence (including the empty one), and ?, which matches any single character. Note this query can be slow, as it needs to iterate over many terms. In order to prevent extremely slow WildcardQueries, a Wildcard term should not start with one of the wildcards * or ?.
This query uses the {@link MultiTermQuery#CONSTANT_SCORE_AUTO_REWRITE_DEFAULT}rewrite method. @see WildcardTermEnum

      @Override
      protected Analyzer getIndexAnalyzer(String field) {
        return analyzer;
      }
    };
    SpanQuery childQuery = new SpanMultiTermQueryWrapper<WildcardQuery>(new WildcardQuery(new Term("body", "te*")));
    Query query = new SpanFirstQuery(childQuery, 1000000);
    TopDocs topDocs = searcher.search(query, null, 10, Sort.INDEXORDER);
    assertEquals(2, topDocs.totalHits);
    String snippets[] = highlighter.highlight("body", query, searcher, topDocs);
    assertEquals(2, snippets.length);

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      protected Analyzer getIndexAnalyzer(String field) {
        return analyzer;
      }
    };
    BooleanQuery query = new BooleanQuery();
    query.add(new WildcardQuery(new Term("body", "te*")), BooleanClause.Occur.SHOULD);
    query.add(new WildcardQuery(new Term("body", "one")), BooleanClause.Occur.SHOULD);
    query.add(new WildcardQuery(new Term("body", "se*")), BooleanClause.Occur.SHOULD);
    TopDocs topDocs = searcher.search(query, null, 10, Sort.INDEXORDER);
    assertEquals(1, topDocs.totalHits);
    String snippets[] = highlighter.highlight("body", query, searcher, topDocs);
    assertEquals(1, snippets.length);

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    directory.close();
    super.tearDown();
  }
  
  public void testWildcard() throws Exception {
    WildcardQuery wq = new WildcardQuery(new Term("field", "bro?n"));
    SpanQuery swq = new SpanMultiTermQueryWrapper<WildcardQuery>(wq);
    // will only match quick brown fox
    SpanFirstQuery sfq = new SpanFirstQuery(swq, 2);
    assertEquals(1, searcher.search(sfq, 10).totalHits);
  }

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    SpanFirstQuery sfq = new SpanFirstQuery(swq, 2);
    assertEquals(1, searcher.search(sfq, 10).totalHits);
  }
  
  public void testPrefix() throws Exception {
    WildcardQuery wq = new WildcardQuery(new Term("field", "extrem*"));
    SpanQuery swq = new SpanMultiTermQueryWrapper<WildcardQuery>(wq);
    // will only match "jumps over extremely very lazy broxn dog"
    SpanFirstQuery sfq = new SpanFirstQuery(swq, 3);
    assertEquals(1, searcher.search(sfq, 10).totalHits);
  }

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    assertEquals(0, searcher.search(near, 10).totalHits);
    //flip order
    near = new SpanNearQuery(new SpanQuery[]{spanNoSuch, term}, 1, true);
    assertEquals(0, searcher.search(near, 10).totalHits);
    
    WildcardQuery wcNoSuch = new WildcardQuery(new Term("field", "noSuch*"));
    SpanQuery spanWCNoSuch = new SpanMultiTermQueryWrapper<WildcardQuery>(wcNoSuch);
    near = new SpanNearQuery(new SpanQuery[]{term, spanWCNoSuch}, 1, true);
    assertEquals(0, searcher.search(near, 10).totalHits);
  
    RegexpQuery rgxNoSuch = new RegexpQuery(new Term("field", "noSuch"));

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    //both noSuch
    notNear = new SpanNotQuery(spanNoSuch, spanNoSuch, 0,0);
    assertEquals(0, searcher.search(notNear, 10).totalHits);


    WildcardQuery wcNoSuch = new WildcardQuery(new Term("field", "noSuch*"));
    SpanQuery spanWCNoSuch = new SpanMultiTermQueryWrapper<WildcardQuery>(wcNoSuch);
    notNear = new SpanNotQuery(term, spanWCNoSuch, 0,0);
    assertEquals(1, searcher.search(notNear, 10).totalHits);
  
    RegexpQuery rgxNoSuch = new RegexpQuery(new Term("field", "noSuch"));

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    //flip
    near = new SpanOrQuery(new SpanQuery[]{spanNoSuch, term});
    assertEquals(1, searcher.search(near, 10).totalHits);


    
    WildcardQuery wcNoSuch = new WildcardQuery(new Term("field", "noSuch*"));
    SpanQuery spanWCNoSuch = new SpanMultiTermQueryWrapper<WildcardQuery>(wcNoSuch);
    near = new SpanOrQuery(new SpanQuery[]{term, spanWCNoSuch});
    assertEquals(1, searcher.search(near, 10).totalHits);
  
    RegexpQuery rgxNoSuch = new RegexpQuery(new Term("field", "noSuch"));

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    SpanQuery spanNoSuch = new SpanMultiTermQueryWrapper<FuzzyQuery>(fuzzyNoSuch);
    SpanQuery spanFirst = new SpanFirstQuery(spanNoSuch, 10);
 
    assertEquals(0, searcher.search(spanFirst, 10).totalHits);
    
    WildcardQuery wcNoSuch = new WildcardQuery(new Term("field", "noSuch*"));
    SpanQuery spanWCNoSuch = new SpanMultiTermQueryWrapper<WildcardQuery>(wcNoSuch);
    spanFirst = new SpanFirstQuery(spanWCNoSuch, 10);
    assertEquals(0, searcher.search(spanFirst, 10).totalHits);
  
    RegexpQuery rgxNoSuch = new RegexpQuery(new Term("field", "noSuch"));

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            case BooleanQueryCriteria.OR:
                occur = BooleanClause.Occur.SHOULD;
                break;
            case BooleanQueryCriteria.NOT:
                occur = BooleanClause.Occur.MUST_NOT;
                booleanQuery.add(new WildcardQuery(new Term(((BooleanQueryCriteria) queryCriteria)
                        .getTerms().get(0).getElementName(), "*")), BooleanClause.Occur.SHOULD);
                break;
            default:
                throw new CatalogException("Invalid BooleanQueryCriteria opertor [" 
                        + ((BooleanQueryCriteria) queryCriteria).getOperator() + "]");

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      Term term = tq.getTerm();
      if (term.field().equals(fieldLessFieldName)) {
        return new TermQuery(new Term(name, term.bytes()));
      }
    } else if (query instanceof WildcardQuery) {
      WildcardQuery wq = (WildcardQuery) query;
      Term term = wq.getTerm();
      if (term.field().equals(fieldLessFieldName)) {
        return new WildcardQuery(new Term(name, term.bytes()));
      }
    } else if (query instanceof MultiPhraseQuery) {
      MultiPhraseQuery mpq = (MultiPhraseQuery) query;
      int[] positions = mpq.getPositions();
      List<Term[]> termArrays = mpq.getTermArrays();

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