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.

      if (positions.docID() == i) {
        if (positions.freq() == 0) { // shouldn't happen
          throw new CorruptIndexException("Missing parent data for category " + i);
        }
        
        parents[i] = positions.nextPosition();
        
        if (positions.nextDoc() == DocIdSetIterator.NO_MORE_DOCS) {
          if (i + 1 < num) {
            throw new CorruptIndexException("Missing parent data for category "+ (i + 1));
          }

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        }
      }


      if (doc == pDoc) {
        weights[i] = scorer.weight(contentLength, de.freq());
        de.nextPosition();
        pq.add(new OffsetsEnum(de, i));
      }
    }
    
    pq.add(new OffsetsEnum(EMPTY, Integer.MAX_VALUE)); // a sentinel for termination

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        current.addMatch(start, end, terms[off.id]);
        if (off.pos == dp.freq()) {
          break; // removed from pq
        } else {
          off.pos++;
          dp.nextPosition();
          start = dp.startOffset();
          end = dp.endOffset();
        }
        if (start >= current.endOffset || end > contentLength) {
          pq.offer(off);

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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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      dpEnum = termsEnum.docsAndPositions(null, dpEnum);
      assert dpEnum != null; // presumably checked by TokenSources.hasPositions earlier
      dpEnum.nextDoc();
      final int freq = dpEnum.freq();
      for (int j = 0; j < freq; j++) {
        int pos = dpEnum.nextPosition();
        Token token;
        if (hasOffsets) {
          token = new Token(text.utf8ToString(),
                            dpEnum.startOffset(),
                            dpEnum.endOffset());

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            if (hasFreq) {
              final int freq = docsEnum2.freq();
              scratch.add(freq);
              if (hasPos) {
                for(int pos=0;pos<freq;pos++) {
                  scratch.add(docsAndPositionsEnum.nextPosition());
                  if (hasOffsets) {
                    scratch.add(docsAndPositionsEnum.startOffset());
                    scratch.add(docsAndPositionsEnum.endOffset());
                  }
                  if (hasPayloads) {

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                  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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    // test nextDoc()
    while ((doc = sortedPositions.nextDoc()) != DocIdSetIterator.NO_MORE_DOCS) {
      int freq = sortedPositions.freq();
      assertEquals("incorrect freq for doc=" + doc, sortedValues[doc].intValue() / 10 + 1, freq);
      for (int i = 0; i < freq; i++) {
        assertEquals("incorrect position for doc=" + doc, i, sortedPositions.nextPosition());
        if (!doesntSupportOffsets.contains(_TestUtil.getPostingsFormat(DOC_POSITIONS_FIELD))) {
          assertEquals("incorrect startOffset for doc=" + doc, i, sortedPositions.startOffset());
          assertEquals("incorrect endOffset for doc=" + doc, i, sortedPositions.endOffset());
        }
        assertEquals("incorrect payload for doc=" + doc, freq - i, Integer.parseInt(sortedPositions.getPayload().utf8ToString()));

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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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