Examples of org.apache.lucene.index.DocsAndPositionsEnum.nextPosition()

Class org.apache.lucene.index.DocsAndPositionsEnum

Examples of org.apache.lucene.index.DocsAndPositionsEnum.nextPosition()

org.apache.lucene.index.DocsAndPositionsEnum.nextPosition()
Returns the next position. You should only call this up to {@link DocsEnum#freq()} times elsethe behavior is not defined. If positions were not indexed this will return -1; this only happens if offsets were indexed and you passed needsOffset=true when pulling the enum.

                  payloads[upto] = new byte[freq][];
                }
                positions[upto] = new int[mult*freq];
                int posUpto = 0;
                for(int pos=0;pos<freq;pos++) {
                  positions[upto][posUpto] = docsAndPositionsEnum.nextPosition();
                  if (hasPayloads) {
                    BytesRef payload = docsAndPositionsEnum.getPayload();
                    if (payload != null) {
                      byte[] payloadBytes = new byte[payload.length];
                      System.arraycopy(payload.bytes, payload.offset, payloadBytes, 0, payload.length);

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    termsEnum.next();
    assertEquals(2, termsEnum.totalTermFreq());
    DocsAndPositionsEnum positions = termsEnum.docsAndPositions(null, null);
    assertTrue(positions.nextDoc() != DocIdSetIterator.NO_MORE_DOCS);
    assertEquals(2, positions.freq());
    positions.nextPosition();
    assertEquals(0, positions.startOffset());
    assertEquals(4, positions.endOffset());
    positions.nextPosition();
    assertEquals(8, positions.startOffset());
    assertEquals(12, positions.endOffset());

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    assertTrue(positions.nextDoc() != DocIdSetIterator.NO_MORE_DOCS);
    assertEquals(2, positions.freq());
    positions.nextPosition();
    assertEquals(0, positions.startOffset());
    assertEquals(4, positions.endOffset());
    positions.nextPosition();
    assertEquals(8, positions.startOffset());
    assertEquals(12, positions.endOffset());
    assertEquals(DocIdSetIterator.NO_MORE_DOCS, positions.nextDoc());
    r.close();
    dir.close();

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            DocsAndPositionsEnum memDocsAndPos = memTermsIter.docsAndPositions(null, null);
            while(iwDocsAndPos.nextDoc() != DocsAndPositionsEnum.NO_MORE_DOCS) {
              assertEquals(iwDocsAndPos.docID(), memDocsAndPos.nextDoc());
              assertEquals(iwDocsAndPos.freq(), memDocsAndPos.freq());
              for (int i = 0; i < iwDocsAndPos.freq(); i++) {
                assertEquals("term: " + iwTermsIter.term().utf8ToString(), iwDocsAndPos.nextPosition(), memDocsAndPos.nextPosition());
                if (offsets) {
                  assertEquals(iwDocsAndPos.startOffset(), memDocsAndPos.startOffset());
                  assertEquals(iwDocsAndPos.endOffset(), memDocsAndPos.endOffset());
                }
              }

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      assertEquals(1, reader.terms("foo").getSumTotalTermFreq());
      DocsAndPositionsEnum disi = reader.termPositionsEnum(new Term("foo", "bar"));
      int docid = disi.docID();
      assertEquals(-1, docid);
      assertTrue(disi.nextDoc() != DocIdSetIterator.NO_MORE_DOCS);
      assertEquals(0, disi.nextPosition());
      assertEquals(0, disi.startOffset());
      assertEquals(3, disi.endOffset());
      
      // now reuse and check again
      TermsEnum te = reader.terms("foo").iterator(null);

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      final String term = text.utf8ToString();


      dpEnum.nextDoc();
      final int freq = dpEnum.freq();
      for(int posUpto=0;posUpto<freq;posUpto++) {
        final int pos = dpEnum.nextPosition();
        if (dpEnum.startOffset() < 0) {
          throw new IllegalArgumentException(
              "Required TermVector Offset information was not found");
        }
        final Token token = new Token(term,

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    DocsAndPositionsEnum dpEnum = termsEnum.docsAndPositions(null, null);
    assertNotNull(dpEnum);
    assertTrue(dpEnum.nextDoc() != DocIdSetIterator.NO_MORE_DOCS);
    assertEquals(5, dpEnum.freq());
    for(int i=0;i<5;i++) {
      assertEquals(i, dpEnum.nextPosition());
    }


    dpEnum = termsEnum.docsAndPositions(null, dpEnum);
    assertNotNull(dpEnum);
    assertTrue(dpEnum.nextDoc() != DocIdSetIterator.NO_MORE_DOCS);

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    dpEnum = termsEnum.docsAndPositions(null, dpEnum);
    assertNotNull(dpEnum);
    assertTrue(dpEnum.nextDoc() != DocIdSetIterator.NO_MORE_DOCS);
    assertEquals(5, dpEnum.freq());
    for(int i=0;i<5;i++) {
      dpEnum.nextPosition();
      assertEquals(4*i, dpEnum.startOffset());
      assertEquals(4*i+3, dpEnum.endOffset());
    }
    reader.close();
  }

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              docsAndPositions.nextDoc();
              boboTerm.positions = new ArrayList<Integer>();
              boboTerm.startOffsets = new ArrayList<Integer>();
              boboTerm.endOffsets = new ArrayList<Integer>();
              for (int t = 0; t < boboTerm.freq; ++t) {
                boboTerm.positions.add(docsAndPositions.nextPosition());
                boboTerm.startOffsets.add(docsAndPositions.startOffset());
                boboTerm.endOffsets.add(docsAndPositions.endOffset());
              }
            }
            boboTermList.add(boboTerm);

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        return;
      }
      int docID = -1;
      while ((docID = docPosEnum.nextDoc()) != DocsEnum.NO_MORE_DOCS) {
        if (docPosEnum.freq() > 0) {
          docPosEnum.nextPosition();
          int len = bytesToInt(docPosEnum.getPayload().bytes);
          allocate(docID, Math.min(len, _maxItems), true);
        }
      }
    }

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