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.

        visitedDocs.set(doc);
        final int freq = postingsEnum.freq();
        this.startDoc(doc, freq);
        totTF += freq;
        for(int i=0;i<freq;i++) {
          final int position = postingsEnum.nextPosition();
          final BytesRef payload = postingsEnum.getPayload();
          this.addPosition(position, payload, -1, -1);
        }
        this.finishDoc();
        df++;

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        visitedDocs.set(doc);
        final int freq = postingsEnum.freq();
        this.startDoc(doc, freq);
        totTF += freq;
        for(int i=0;i<freq;i++) {
          final int position = postingsEnum.nextPosition();
          final BytesRef payload = postingsEnum.getPayload();
          this.addPosition(position, payload, postingsEnum.startOffset(), postingsEnum.endOffset());
        }
        this.finishDoc();
        df++;

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          final int docID = docsAndPositionsEnum.nextDoc();
          assert docID != DocIdSetIterator.NO_MORE_DOCS;
          assert docsAndPositionsEnum.freq() == freq;


          for(int posUpto=0; posUpto<freq; posUpto++) {
            final int pos = docsAndPositionsEnum.nextPosition();
            final int startOffset = docsAndPositionsEnum.startOffset();
            final int endOffset = docsAndPositionsEnum.endOffset();
            
            final BytesRef payload = docsAndPositionsEnum.getPayload();

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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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      final float weight = ( float ) ( Math.log( numDocs / ( double ) ( reader.docFreq( new Term(fieldName, text) ) + 1 ) ) + 1.0 );


      final int freq = dpEnum.freq();
      
      for(int i = 0;i < freq;i++) {
        int pos = dpEnum.nextPosition();
        if (dpEnum.startOffset() < 0) {
          return; // no offsets, null snippet
        }
        termList.add( new TermInfo( term, dpEnum.startOffset(), dpEnum.endOffset(), pos, weight ) );
      }

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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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                                                                MultiFields.getLiveDocs(searcher.getIndexReader()),
                                                                "field",
                                                                new BytesRef("1"));
    pos.nextDoc();
    // first token should be at position 0
    assertEquals(0, pos.nextPosition());
    
    pos = MultiFields.getTermPositionsEnum(searcher.getIndexReader(),
                                           MultiFields.getLiveDocs(searcher.getIndexReader()),
                                           "field",
                                           new BytesRef("2"));

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                                           MultiFields.getLiveDocs(searcher.getIndexReader()),
                                           "field",
                                           new BytesRef("2"));
    pos.nextDoc();
    // second token should be at position 2
    assertEquals(2, pos.nextPosition());
    
    PhraseQuery q;
    ScoreDoc[] hits;


    q = new PhraseQuery();

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    int count = 0;
    assertTrue(tp.nextDoc() != DocIdSetIterator.NO_MORE_DOCS);
    // "a" occurs 4 times
    assertEquals(4, tp.freq());
    assertEquals(0, tp.nextPosition());
    assertEquals(1, tp.nextPosition());
    assertEquals(3, tp.nextPosition());
    assertEquals(6, tp.nextPosition());


    // only one doc has "a"

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