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

org.apache.lucene.index.TermsEnum.docs()
Get {@link DocsEnum} for the current term. Do notcall this when the enum is unpositioned. This method will not return null. @param liveDocs unset bits are documents that should notbe returned @param reuse pass a prior DocsEnum for possible reuse

        Terms terms = ctx.reader().terms(Consts.FULL);
        if (terms != null) {
          termsEnum = terms.iterator(termsEnum);
          if (termsEnum.seekExact(catTerm, true)) {
            // liveDocs=null because the taxonomy has no deletes
            docs = termsEnum.docs(null, docs, 0 /* freqs not required */);
            // if the term was found, we know it has exactly one document.
            doc = docs.nextDoc() + ctx.docBase;
            break;
          }
        }

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              // one document. Also, since we do not allow removing categories (and
              // hence documents), there are no deletions in the index. Therefore, it
              // is sufficient to call next(), and then doc(), exactly once with no
              // 'validation' checks.
              CategoryPath cp = new CategoryPath(t.utf8ToString(), delimiter);
              docsEnum = termsEnum.docs(null, docsEnum, DocsEnum.FLAG_NONE);
              boolean res = cache.put(cp, docsEnum.nextDoc() + ctx.docBase);
              assert !res : "entries should not have been evicted from the cache";
            } else {
              // the cache is full and the next put() will evict entries from it, therefore abort the iteration.
              aborted = true;

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        te = terms.iterator(te);
        while (te.next() != null) {
          String value = te.term().utf8ToString();
          CategoryPath cp = new CategoryPath(value, delimiter);
          final int ordinal = addCategory(cp);
          docs = te.docs(null, docs, DocsEnum.FLAG_NONE);
          ordinalMap.addMapping(docs.nextDoc() + base, ordinal);
        }
        base += ar.maxDoc(); // no deletions, so we're ok
      }
      ordinalMap.addDone();

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          if (termOrd >= termCountHardLimit) {
            break;
          }


          termOrdToBytesOffset.add(bytes.copyUsingLengthPrefix(term));
          docs = termsEnum.docs(null, docs, DocsEnum.FLAG_NONE);
          while (true) {
            final int docID = docs.nextDoc();
            if (docID == DocIdSetIterator.NO_MORE_DOCS) {
              break;
            }

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          final BytesRef term = termsEnum.next();
          if (term == null) {
            break;
          }
          final long pointer = bytes.copyUsingLengthPrefix(term);
          docs = termsEnum.docs(null, docs, DocsEnum.FLAG_NONE);
          while (true) {
            final int docID = docs.nextDoc();
            if (docID == DocIdSetIterator.NO_MORE_DOCS) {
              break;
            }

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  @Test
  public void testDocsEnum() throws Exception {
    Bits mappedLiveDocs = randomLiveDocs(reader.maxDoc());
    TermsEnum termsEnum = reader.terms(DOCS_ENUM_FIELD).iterator(null);
    assertEquals(SeekStatus.FOUND, termsEnum.seekCeil(new BytesRef(DOCS_ENUM_TERM)));
    DocsEnum docs = termsEnum.docs(mappedLiveDocs, null);


    int doc;
    int prev = -1;
    while ((doc = docs.nextDoc()) != DocIdSetIterator.NO_MORE_DOCS) {
      assertTrue("document " + doc + " marked as deleted", mappedLiveDocs == null || mappedLiveDocs.get(doc));

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    while (++prev < reader.maxDoc()) {
      assertFalse("document " + prev + " not marked as deleted", mappedLiveDocs == null || mappedLiveDocs.get(prev));
    }


    DocsEnum reuse = docs;
    docs = termsEnum.docs(mappedLiveDocs, reuse);
    if (docs instanceof SortingDocsEnum) {
      assertTrue(((SortingDocsEnum) docs).reused(reuse)); // make sure reuse worked
    }
    doc = -1;
    prev = -1;

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          final BytesRef term = termsEnum.next();
          if (term == null) {
            break;
          }
          visitTerm(term);
          docs = termsEnum.docs(null, docs, DocsEnum.FLAG_NONE);
          while (true) {
            final int docID = docs.nextDoc();
            if (docID == DocIdSetIterator.NO_MORE_DOCS) {
              break;
            }

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      assert termStates.topReaderContext == ReaderUtil.getTopLevelContext(context) : "The top-reader used to create Weight (" + termStates.topReaderContext + ") is not the same as the current reader's top-reader (" + ReaderUtil.getTopLevelContext(context);
      final TermsEnum termsEnum = getTermsEnum(context);
      if (termsEnum == null) {
        return null;
      }
      DocsEnum docs = termsEnum.docs(acceptDocs, null);
      assert docs != null;
      return new TermScorer(this, docs, similarity.simScorer(stats, context));
    }
    
    /**

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          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() + ")");
          }


          docFreq = termsEnum.docFreq();
        }

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