Examples of org.apache.lucene.search.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}.

    bq.add(bc);
    doConvert(bq);
  }


  public void testPhraseQuery() throws ParseException {
    PhraseQuery pq = new PhraseQuery();
    pq.add(new Term("tags", "h*"));
    pq.add(new Term("tags", "x*"));
    doConvert(pq);
  }

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     if (stopWords.contains(queryWords[i-1]) && stopWords.contains(queryWords[i])) continue LOOP2;
     joinChar = (stopWords.contains(queryWords[i-1]) || stopWords.contains(queryWords[i])) ? "_": " ";
     for (int j = i-1; j < i+1; j++) wt += (contentWord[j]) ? WT_NORM_BIGRAM: 0;
     String bigram = queryWords[i-1] + joinChar + queryWords[i];
     queryString.append("contents:\"" + bigram + "\"~0^" + wt + " ");
     PhraseQuery pq = new PhraseQuery(); pq.add( new Term("contents", bigram)); pq.setBoost(wt); pq.setSlop(0);
     theQuery.add(pq, BooleanClause.Occur.SHOULD);
     bigrams.add(bigram);
   }
  } //*-- end of for

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      @Override
      public void run() throws Exception {
        numHighlights = 0;
        TermRangeFilter rf = new TermRangeFilter("contents", "john", "john", true, true);
        PhraseQuery pq = new PhraseQuery();
        pq.add(new Term("contents", "john"));
        pq.add(new Term("contents", "kennedy"));
        FilteredQuery fq = new FilteredQuery(pq, rf);


        doSearching(fq);
        doStandardHighlights(analyzer, searcher, hits, query, HighlighterTest.this);
        // Currently highlights "John" and "Kennedy" separately

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  private void smokeTestReader(IndexReader r) throws Exception {
    IndexSearcher s = newSearcher(r);
    runQuery(s, new TermQuery(new Term("body", "united")));
    runQuery(s, new TermQuery(new Term("titleTokenized", "states")));
    PhraseQuery pq = new PhraseQuery();
    pq.add(new Term("body", "united"));
    pq.add(new Term("body", "states"));
    runQuery(s, pq);
    s.close();
  }

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    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, "a");
    // 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]);
    }

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    QueryParserWrapper qp = new QueryParserWrapper("a", new StopAnalyzer(Version.LUCENE_CURRENT, StopFilter.makeStopSet("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]);
    }

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          }
          return mpq;
        }
      }
      else {
        PhraseQuery pq = newPhraseQuery();
        pq.setSlop(phraseSlop);
        int position = -1;




        for (int i = 0; i < numTokens; i++) {
          String term = null;
          int positionIncrement = 1;


          try {
            boolean hasNext = buffer.incrementToken();
            assert hasNext == true;
            term = termAtt.term();
            if (posIncrAtt != null) {
              positionIncrement = posIncrAtt.getPositionIncrement();
            }
          } catch (IOException e) {
            // safe to ignore, because we know the number of tokens
          }


          if (enablePositionIncrements) {
            position += positionIncrement;
            pq.add(new Term(field, term),position);
          } else {
            pq.add(new Term(field, term));
          }
        }
        return pq;
      }
    }

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

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      @Override
      public void run() throws Exception {
        numHighlights = 0;
        TermRangeFilter rf = new TermRangeFilter("contents", "john", "john", true, true);
        PhraseQuery pq = new PhraseQuery();
        pq.add(new Term("contents", "john"));
        pq.add(new Term("contents", "kennedy"));
        FilteredQuery fq = new FilteredQuery(pq, rf);


        doSearching(fq);
        doStandardHighlights(analyzer, searcher, hits, query, HighlighterTest.this);
        // Currently highlights "John" and "Kennedy" separately

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      doc.add(new Field("content", "bbb " + i, Field.Store.NO,
                        Field.Index.ANALYZED));
      writer.updateDocument(new Term("id", "" + (i%10)), doc);
    }
    // Deletes one of the 10 added docs, leaving 9:
    PhraseQuery q = new PhraseQuery();
    q.add(new Term("content", "bbb"));
    q.add(new Term("content", "14"));
    writer.deleteDocuments(q);


    writer.optimize();
    writer.commit();

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