Package org.apache.lucene.search.spans

Examples of org.apache.lucene.search.spans.SpanFirstQuery

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  {
      int end=DOMUtils.getAttribute(e,"end",1);
      Element child=DOMUtils.getFirstChildElement(e);
      SpanQuery q=factory.getSpanQuery(child);
     
    SpanFirstQuery sfq = new SpanFirstQuery(q,end);
   
    sfq.setBoost(DOMUtils.getAttribute(e,"boost",1.0f));
    return sfq;
  }
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    writer.optimize();
    writer.close();

    IndexSearcher searcher = new IndexSearcher(directory);
    SpanRegexQuery srq = new SpanRegexQuery(new Term("field", "aut.*"));
    SpanFirstQuery sfq = new SpanFirstQuery(srq, 1);
//    SpanNearQuery query = new SpanNearQuery(new SpanQuery[] {srq, stq}, 6, true);
    Hits hits = searcher.search(sfq);
    assertEquals(1, hits.length());
  }
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            } catch (NumberFormatException e) {
                throw new XPathException("Attribute 'end' to query element 'first' should be a " +
                        "valid integer. Got: " + node.getAttribute("end"));
            }
        }
        return query != null ? new SpanFirstQuery(query, end) : null;
    }
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  public SpanQuery getSpanQuery(Element e) throws ParserException {
    int end = DOMUtils.getAttribute(e, "end", 1);
    Element child = DOMUtils.getFirstChildElement(e);
    SpanQuery q = factory.getSpanQuery(child);

    SpanFirstQuery sfq = new SpanFirstQuery(q, end);

    sfq.setBoost(DOMUtils.getAttribute(e, "boost", 1.0f));
    return sfq;
  }
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    writer.close();

    IndexReader reader = DirectoryReader.open(directory);
    IndexSearcher searcher = newSearcher(reader);
    SpanQuery srq = new SpanMultiTermQueryWrapper<>(new RegexQuery(new Term("field", "aut.*")));
    SpanFirstQuery sfq = new SpanFirstQuery(srq, 1);
    // SpanNearQuery query = new SpanNearQuery(new SpanQuery[] {srq, stq}, 6,
    // true);
    int numHits = searcher.search(sfq, null, 1000).totalHits;
    assertEquals(1, numHits);
    reader.close();
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    return new SpanNearQuery(new SpanQuery[] { s, m, e }, slop, inOrder);
  }
 
  /** MACRO for SpanFirst(SpanTermQuery) */
  public SpanFirstQuery sf(String s, int b) {
    return new SpanFirstQuery(st(s), b);
  }
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      protected Analyzer getIndexAnalyzer(String field) {
        return analyzer;
      }
    };
    SpanQuery childQuery = new SpanMultiTermQueryWrapper<>(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);
    assertEquals("This is a <b>test</b>.", snippets[0]);
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    writer.optimize();
    writer.close();

    IndexSearcher searcher = new IndexSearcher(directory);
    SpanRegexQuery srq = new SpanRegexQuery(new Term("field", "aut.*"));
    SpanFirstQuery sfq = new SpanFirstQuery(srq, 1);
//    SpanNearQuery query = new SpanNearQuery(new SpanQuery[] {srq, stq}, 6, true);
    Hits hits = searcher.search(sfq);
    assertEquals(1, hits.length());
  }
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    public static Query[] getPrebuiltQueries(String field)
    {
        //be wary of unanalyzed text
        return new Query[]{
                new SpanFirstQuery(new SpanTermQuery(new Term(field, "ford")), 5),
                new SpanNearQuery(new SpanQuery[]{new SpanTermQuery(new Term(field, "night")), new SpanTermQuery(new Term(field, "trading"))}, 4, false),
                new SpanNearQuery(new SpanQuery[]{new SpanFirstQuery(new SpanTermQuery(new Term(field, "ford")), 10), new SpanTermQuery(new Term(field, "credit"))}, 10, false),
                new WildcardQuery(new Term(field, "fo*")),
        };
    }
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  };
 
  private static Query[] getPrebuiltQueries(String field) {
    //  be wary of unanalyzed text
    return new Query[] {
        new SpanFirstQuery(new SpanTermQuery(new Term(field, "ford")), 5),
        new SpanNearQuery(new SpanQuery[]{new SpanTermQuery(new Term(field, "night")), new SpanTermQuery(new Term(field, "trading"))}, 4, false),
        new SpanNearQuery(new SpanQuery[]{new SpanFirstQuery(new SpanTermQuery(new Term(field, "ford")), 10), new SpanTermQuery(new Term(field, "credit"))}, 10, false),
        new WildcardQuery(new Term(field, "fo*")),
    };
  }
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Related Classes of org.apache.lucene.search.spans.SpanFirstQuery

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  • org.apache.lucene.benchmark.standard.ReutersQueries
  • org.apache.lucene.queryparser.xml.builders.SpanFirstBuilder
  • org.apache.lucene.sandbox.queries.regex.TestSpanRegexQuery
  • org.apache.lucene.search.postingshighlight.TestMultiTermHighlighting
  • org.apache.lucene.search.regex.TestSpanRegexQuery
  • org.apache.lucene.search.TestExplanations
  • org.apache.lucene.xmlparser.builders.SpanFirstBuilder
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