Examples of PhraseQuery

org.apache.lucene.search.PhraseQuery
A Query that matches documents containing a particular sequence of terms. A PhraseQuery is built by QueryParser for input like "new york".
This query may be combined with other terms or queries with a {@link BooleanQuery}.

Examples of org.apache.lucene.search.PhraseQuery

  /**
   * Builds a new PhraseQuery instance
   * @return new PhraseQuery instance
   */
  protected PhraseQuery newPhraseQuery(){
    return new PhraseQuery();
  }

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Examples of org.apache.lucene.search.PhraseQuery

      QueryParser qp = new QueryParser("a", new StopAnalyzer(new String[]{"the", "in", "are", "this"}));
      qp.setEnablePositionIncrements(true);
      String qtxt = "\"the words in poisitions pos02578 are stopped in this phrasequery\"";
      //               0         2                      5           7  8
      int expectedPositions[] = {1,3,4,6,9};
      PhraseQuery pq = (PhraseQuery) qp.parse(qtxt);
      //System.out.println("Query text: "+qtxt);
      //System.out.println("Result: "+pq);
      Term t[] = pq.getTerms();
      int pos[] = pq.getPositions();
      for (int i = 0; i < t.length; i++) {
        //System.out.println(i+". "+t[i]+"  pos: "+pos[i]);
        assertEquals("term "+i+" = "+t[i]+" has wrong term-position!",expectedPositions[i],pos[i]);
      }
    } finally {

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Examples of org.apache.lucene.search.PhraseQuery

    doc.add(f);
    return doc;
  }


  private static PhraseQuery makePhraseQuery(String terms) {
    PhraseQuery query = new PhraseQuery();
    String[] t = terms.split(" +");
    for (int i=0; i<t.length; i++) {
      query.add(new Term("f", t[i]));
    }
    return query;
  }

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Examples of org.apache.lucene.search.PhraseQuery

    doc.add(new Field("field", tokens));
    w.addDocument(doc);
    w.commit();


    IndexSearcher s = new IndexSearcher(dir, false);
    PhraseQuery pq = new PhraseQuery();
    pq.add(new Term("field", "a"));
    pq.add(new Term("field", "b"));
    pq.add(new Term("field", "c"));
    ScoreDoc[] hits = s.search(pq, null, 1000).scoreDocs;
    assertEquals(1, hits.length);


    Query q = new SpanTermQuery(new Term("field", "a"));
    hits = s.search(q, null, 1000).scoreDocs;

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Examples of org.apache.lucene.search.PhraseQuery


    final IndexReader r = w.getReader();
    w.close();


    final IndexSearcher s = new IndexSearcher(r);
    PhraseQuery pq = new PhraseQuery();
    pq.add(new Term("content", "silly"));
    pq.add(new Term("content", "content"));
    assertEquals(0, s.search(pq, 1).totalHits);


    pq = new PhraseQuery();
    pq.add(new Term("content", "good"));
    pq.add(new Term("content", "content"));
    assertEquals(numDocs1+numDocs2, s.search(pq, 1).totalHits);
    r.close();
    dir.close();
  }

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Examples of org.apache.lucene.search.PhraseQuery


    final IndexReader r = w.getReader();
    w.close();


    final IndexSearcher s = new IndexSearcher(r);
    PhraseQuery pq = new PhraseQuery();
    pq.add(new Term("content", "silly"));
    pq.add(new Term("content", "content"));
    assertEquals(numDocs2, s.search(pq, 1).totalHits);


    pq = new PhraseQuery();
    pq.add(new Term("content", "good"));
    pq.add(new Term("content", "content"));
    assertEquals(numDocs1+numDocs3+numDocs4, s.search(pq, 1).totalHits);
    r.close();
    dir.close();
  }

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Examples of org.apache.lucene.search.PhraseQuery

                        mpq.add(newFulltextTerm(token));
                    }
                }
                return mpq;
            } else {
                PhraseQuery pq = new PhraseQuery();
                for (String t : tokens) {
                    pq.add(newFulltextTerm(t));
                }
                return pq;
            }
        }
    }

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Examples of org.apache.lucene.search.PhraseQuery


  private void addSloppyPhrases(Query input, BooleanQuery output) {
    Clause[] clauses = input.getClauses();
    for (int f = 0; f < FIELDS.length; f++) {


      PhraseQuery sloppyPhrase = new PhraseQuery();
      sloppyPhrase.setBoost(FIELD_BOOSTS[f] * PHRASE_BOOST);
      sloppyPhrase.setSlop("anchor".equals(FIELDS[f])
                           ? NutchDocumentAnalyzer.INTER_ANCHOR_GAP
                           : SLOP);
      int sloppyTerms = 0;


      for (int i = 0; i < clauses.length; i++) {
        Clause c = clauses[i];
        
        if (!c.getField().equals(Clause.DEFAULT_FIELD))
          continue;                               // skip non-default fields
        
        if (c.isPhrase())                         // skip exact phrases
          continue;


        if (c.isProhibited())                     // skip prohibited terms
          continue;
        
        sloppyPhrase.add(luceneTerm(FIELDS[f], c.getTerm()));
        sloppyTerms++;
      }


      if (sloppyTerms > 1)
        output.add(sloppyPhrase, BooleanClause.Occur.SHOULD);

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Examples of org.apache.lucene.search.PhraseQuery

  /** Utility to construct a Lucene exact phrase query for a Nutch phrase. */
  private org.apache.lucene.search.Query
       exactPhrase(Phrase nutchPhrase,
                   String field, float boost) {
    Term[] terms = nutchPhrase.getTerms();
    PhraseQuery exactPhrase = new PhraseQuery();
    for (int i = 0; i < terms.length; i++) {
      exactPhrase.add(luceneTerm(field, terms[i]));
    }
    exactPhrase.setBoost(boost);
    return exactPhrase;
  }

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Examples of org.apache.lucene.search.PhraseQuery


        writer.addDocument(doc);


        searcher = new IndexSearcher(DirectoryReader.open(writer, false));


        PhraseQuery pq = new PhraseQuery();
        pq.add(new Term("content", "fox"));
        pq.add(new Term("content", "hops"));


        Assert.assertEquals(1, TestUtil.hitCount(searcher, pq));


    }

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