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}.

    }


    writer.addIndexesNoOptimize(new Directory[] {aux});


    // 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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                        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.addIndexesNoOptimize(new Directory[] {aux});


    writer.optimize();

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    QueryParser qp = new QueryParser(Version.LUCENE_CURRENT, "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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    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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  protected Query pq( float boost, String field, String... texts ){
    return pq( boost, 0, field, texts );
  }
  
  protected Query pq( float boost, int slop, String field, String... texts ){
    PhraseQuery query = new PhraseQuery();
    for( String text : texts ){
      query.add( new Term( field, text ) );
    }
    query.setBoost( boost );
    query.setSlop( slop );
    return query;
  }

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    config.setMergePolicy(newLogMergePolicy());
    config.setCodec(_TestUtil.alwaysPostingsFormat(new MockSepPostingsFormat()));
    final IndexWriter writer = new IndexWriter(dir, config);


    try {
      final PhraseQuery pq = new PhraseQuery();
      pq.add(new Term("content", "bbb"));
      pq.add(new Term("content", "ccc"));


      final Document doc = new Document();
      FieldType customType = new FieldType(TextField.TYPE_NOT_STORED);
      customType.setOmitNorms(true);
      doc.add(newField("content", "aaa bbb ccc ddd", customType));

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    TermQuery q1 = new TermQuery(a);
    TermQuery q2 = new TermQuery(b);
    TermQuery q3 = new TermQuery(c);
    TermQuery q4 = new TermQuery(d);


    PhraseQuery pq = new PhraseQuery();
    pq.add(a);
    pq.add(c);
    try {
      searcher.search(pq, 10);
      fail("did not hit expected exception");
    } catch (Exception e) {
      Throwable cause = e;

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          return mpq;
        }
      }
      else {
        // PhraseQuery pq = newPhraseQuery();
        PhraseQuery pq = new PhraseQuery();
        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.toString();
            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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    };
  }


  @Override
  protected PhraseQuery newPhraseQuery() {
    return new PhraseQuery() {
      @Override
      public void add(Term term, int position) {
        super.add(term, position);
        String field = term.field();
        customQueryCheck(field);

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  public void testCJKPhrase() throws Exception {
    // individual CJK chars as terms
    StandardAnalyzer analyzer = new StandardAnalyzer(TEST_VERSION_CURRENT);
    
    PhraseQuery expected = new PhraseQuery();
    expected.add(new Term("field", "中"));
    expected.add(new Term("field", "国"));
    
    assertEquals(expected, getQuery("\"中国\"", analyzer));
  }

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