Examples of org.apache.lucene.index.TermsEnum.docsAndPositions()

org.apache.lucene.index.TermsEnum.docsAndPositions()
Get {@link DocsAndPositionsEnum} for the current term.Do not call this when the enum is unpositioned. This method will return null if positions were not indexed. @param liveDocs unset bits are documents that should notbe returned @param reuse pass a prior DocsAndPositionsEnum for possible reuse @see #docsAndPositions(Bits,DocsAndPositionsEnum,int)

      }
    }
    
    // test advance()
    final DocsAndPositionsEnum reuse = sortedPositions;
    sortedPositions = termsEnum.docsAndPositions(null, reuse);
    if (sortedPositions instanceof SortingDocsAndPositionsEnum) {
      assertTrue(((SortingDocsAndPositionsEnum) sortedPositions).reused(reuse)); // make sure reuse worked
    }
    doc = 0;
    while ((doc = sortedPositions.advance(doc + _TestUtil.nextInt(random(), 1, 5))) != DocIdSetIterator.NO_MORE_DOCS) {

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        if (state == null) { /* term doesnt exist in this segment */
          assert termNotInReader(reader, t): "no termstate found but term exists in reader";
          return null;
        }
        te.seekExact(t.bytes(), state);
        DocsAndPositionsEnum postingsEnum = te.docsAndPositions(liveDocs, null, DocsEnum.FLAG_NONE);


        // PhraseQuery on a field that did not index
        // positions.
        if (postingsEnum == null) {
          assert te.seekExact(t.bytes(), false) : "termstate found but no term exists in reader";

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    termsEnum = tpv.iterator(null);
    BytesRef text;
    DocsAndPositionsEnum dpEnum = null;
    while ((text = termsEnum.next()) != null) {


      dpEnum = termsEnum.docsAndPositions(null, dpEnum);
      if (dpEnum == null) {
        throw new IllegalArgumentException(
            "Required TermVector Offset information was not found");
      }
      final String term = text.utf8ToString();

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    }
    
    final TermsEnum termsEnum = context.reader().terms(term.field()).iterator(null);
    termsEnum.seekExact(term.bytes(), state);
    
    final DocsAndPositionsEnum postings = termsEnum.docsAndPositions(acceptDocs, null, DocsAndPositionsEnum.FLAG_PAYLOADS);


    if (postings != null) {
      return new TermSpans(postings, term);
    } else {
      // term does exist, but has no positions

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    assertEquals(1, vector.size());
    TermsEnum termsEnum = vector.iterator(null);
    assertNotNull(termsEnum.next());
    assertEquals("one", termsEnum.term().utf8ToString());
    assertEquals(5, termsEnum.totalTermFreq());
    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());

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    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);
    assertEquals(5, dpEnum.freq());
    for(int i=0;i<5;i++) {
      dpEnum.nextPosition();

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          List<BoboTerm> boboTermList = new ArrayList<BoboTerm>();
          while ((text = termsEnum.next()) != null) {
            BoboTerm boboTerm = new BoboTerm();
            boboTerm.term = text.utf8ToString();
            boboTerm.freq = (int)termsEnum.totalTermFreq();
            docsAndPositions = termsEnum.docsAndPositions(null, docsAndPositions);
            if (docsAndPositions != null) {
              docsAndPositions.nextDoc();
              boboTerm.positions = new ArrayList<Integer>();
              boboTerm.startOffsets = new ArrayList<Integer>();
              boboTerm.endOffsets = new ArrayList<Integer>();

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    long totalTermFreq = iterator.totalTermFreq();


    assertEquals( "electrical", next.utf8ToString() );
    assertEquals( 2, totalTermFreq );


    final DocsAndPositionsEnum docsAndPositions = iterator.docsAndPositions( null, null );
    docsAndPositions.advance( 0 );//move to Document id 0


    docsAndPositions.nextPosition();
    assertEquals( 0, docsAndPositions.startOffset() );//first term in sentence
    assertEquals( 10, docsAndPositions.endOffset() );

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    }
    
    final TermsEnum termsEnum = context.reader().terms(term.field()).iterator(null);
    termsEnum.seekExact(term.bytes(), state);
    
    final DocsAndPositionsEnum postings = termsEnum.docsAndPositions(acceptDocs, null, DocsAndPositionsEnum.FLAG_PAYLOADS);


    if (postings != null) {
      return new TermSpans(postings, term);
    } else {
      // term does exist, but has no positions

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          if (termState == null) {
            // Term not in reader
            return null;
          }
          termsEnum.seekExact(term.bytes(), termState);
          postingsEnum = termsEnum.docsAndPositions(liveDocs, null, DocsEnum.FLAG_NONE);


          if (postingsEnum == null) {
            // term does exist, but has no positions
            assert termsEnum.docs(liveDocs, null, DocsEnum.FLAG_NONE) != null: "termstate found but no term exists in reader";
            throw new IllegalStateException("field \"" + term.field() + "\" was indexed without position data; cannot run PhraseQuery (term=" + term.text() + ")");

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