Package org.apache.lucene.index

Examples of org.apache.lucene.index.TermPositions

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    }
 
    public TermPositions termPositions() {
      if (DEBUG) System.err.println("MemoryIndexReader.termPositions");
     
      return new TermPositions() {
 
        private boolean hasNext;
        private int cursor = 0;
        private ArrayIntList current;
       
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      if (terms.size() == 0)        // optimize zero-term case
        return null;

      TermPositions[] tps = new TermPositions[terms.size()];
      for (int i = 0; i < terms.size(); i++) {
        TermPositions p = reader.termPositions((Term)terms.elementAt(i));
        if (p == null)
          return null;
        tps[i] = p;
      }
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      TermPositions[] tps = new TermPositions[termArrays.size()];
      for (int i=0; i<tps.length; i++) {
        Term[] terms = (Term[])termArrays.get(i);
     
        TermPositions p;
        if (terms.length > 1)
          p = new MultipleTermPositions(reader, terms);
        else
          p = reader.termPositions(terms[0]);
     
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      TermPositions[] tps = new TermPositions[termArrays.size()];
      for (int i=0; i<tps.length; i++) {
        Term[] terms = (Term[])termArrays.get(i);

        TermPositions p;
        if (terms.length > 1)
          p = new MultipleTermPositions(reader, terms);
        else
          p = reader.termPositions(terms[0]);
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    }
 
    public TermPositions termPositions() {
      if (DEBUG) System.err.println("MemoryIndexReader.termPositions");
     
      return new TermPositions() {
 
        private boolean hasNext;
        private int cursor = 0;
        private ArrayIntList current;
        private Term term;
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      aprioriTermDocs.close();
      testTermDocs.close();

      // compare term positions

      TermPositions testTermPositions = testReader.termPositions(testTermEnum.term());
      TermPositions aprioriTermPositions = aprioriReader.termPositions(aprioriTermEnum.term());

      if (aprioriTermPositions != null) {

        for (int docIndex = 0; docIndex < aprioriReader.maxDoc(); docIndex++) {
          boolean hasNext = aprioriTermPositions.next();
          if (hasNext) {
            assertTrue(testTermPositions.next());

            assertEquals(aprioriTermPositions.freq(), testTermPositions.freq());


            for (int termPositionIndex = 0; termPositionIndex < aprioriTermPositions.freq(); termPositionIndex++) {
              int aprioriPos = aprioriTermPositions.nextPosition();
              int testPos = testTermPositions.nextPosition();

              if (aprioriPos != testPos) {
                assertEquals(aprioriPos, testPos);
              }


              assertEquals(aprioriTermPositions.isPayloadAvailable(), testTermPositions.isPayloadAvailable());
              if (aprioriTermPositions.isPayloadAvailable()) {
                assertEquals(aprioriTermPositions.getPayloadLength(), testTermPositions.getPayloadLength());
                byte[] aprioriPayloads = aprioriTermPositions.getPayload(new byte[aprioriTermPositions.getPayloadLength()], 0);
                byte[] testPayloads = testTermPositions.getPayload(new byte[testTermPositions.getPayloadLength()], 0);
                for (int i = 0; i < aprioriPayloads.length; i++) {
                  assertEquals(aprioriPayloads[i], testPayloads[i]);
                }
              }

            }
          }
        }

        aprioriTermPositions.close();
        testTermPositions.close();

      }
    }
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    writer.close();
   

    IndexSearcher searcher = new IndexSearcher(store);
   
    TermPositions pos = searcher.getIndexReader().termPositions(new Term("field", "1"));
    pos.next();
    // first token should be at position 0
    assertEquals(0, pos.nextPosition());
   
    pos = searcher.getIndexReader().termPositions(new Term("field", "2"));
    pos.next();
    // second token should be at position 2
    assertEquals(2, pos.nextPosition());
   
    PhraseQuery q;
    ScoreDoc[] hits;

    q = new PhraseQuery();
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                        new StringReader("a a b c d e a f g h i j a b k k")));
      writer.addDocument(doc);

      IndexReader r = writer.getReader();

      TermPositions tp = r.termPositions(new Term("content", "a"));
      int count = 0;
      assertTrue(tp.next());
      // "a" occurs 4 times
      assertEquals(4, tp.freq());
      int expected;
      if (x == 1) {
        expected = Integer.MAX_VALUE;
      } else {
        expected = 0;
      }
      assertEquals(expected, tp.nextPosition());
      if (x == 1) {
        continue;
      }
      assertEquals(1, tp.nextPosition());
      assertEquals(3, tp.nextPosition());
      assertEquals(6, tp.nextPosition());

      // only one doc has "a"
      assertFalse(tp.next());

      IndexSearcher is = new IndexSearcher(r);
   
      SpanTermQuery stq1 = new SpanTermQuery(new Term("content", "a"));
      SpanTermQuery stq2 = new SpanTermQuery(new Term("content", "k"));
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    //    don't reset the stream here, the DocumentWriter should do that implicitly
    writer.addDocument(doc);
    writer.close();
   
    IndexReader reader = IndexReader.open(dir);
    TermPositions termPositions = reader.termPositions(new Term("preanalyzed", "term1"));
    assertTrue(termPositions.next());
    assertEquals(1, termPositions.freq());
    assertEquals(0, termPositions.nextPosition());

    termPositions.seek(new Term("preanalyzed", "term2"));
    assertTrue(termPositions.next());
    assertEquals(2, termPositions.freq());
    assertEquals(1, termPositions.nextPosition());
    assertEquals(3, termPositions.nextPosition());
   
    termPositions.seek(new Term("preanalyzed", "term3"));
    assertTrue(termPositions.next());
    assertEquals(1, termPositions.freq());
    assertEquals(2, termPositions.nextPosition());
    reader.close();
   
    // 3) reset stream and consume tokens again
    stream.reset();
    checkTokens(stream);
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    termEnum.close();
    orderedTerms = terms.toArray(new InstantiatedTerm[terms.size()]);

    // create term-document informations
    for (InstantiatedTerm term : orderedTerms) {
      TermPositions termPositions = sourceIndexReader.termPositions(term.getTerm());
      int position = 0;
      while (termPositions.next()) {
        InstantiatedDocument document = documentsByNumber[termPositions.doc()];

        byte[][] payloads = new byte[termPositions.freq()][];
        int[] positions = new int[termPositions.freq()];
        for (int i = 0; i < termPositions.freq(); i++) {
          positions[i] = termPositions.nextPosition();

          if (termPositions.isPayloadAvailable()) {
            payloads[i] = new byte[termPositions.getPayloadLength()];
            termPositions.getPayload(payloads[i], 0);
          }
        }

        InstantiatedTermDocumentInformation termDocumentInformation = new InstantiatedTermDocumentInformation(term, document, positions, payloads);
        term.getAssociatedDocuments()[position++] = termDocumentInformation;
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