Package org.apache.lucene.util

Examples of org.apache.lucene.util.BitVector


  }

  private void loadDeletedDocs() throws IOException {
    // NOTE: the bitvector is stored using the regular directory, not cfs
    if (hasDeletions(si)) {
      deletedDocs = new BitVector(directory(), si.getDelFileName());
      deletedDocsRef = new AtomicInteger(1);
      assert checkDeletedCounts();
      if (deletedDocs.size() != si.docCount) {
        throw new CorruptIndexException("document count mismatch: deleted docs count " + deletedDocs.size() + " vs segment doc count " + si.docCount + " segment=" + si.name);
      }
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  }

  @Override
  protected void doDelete(int docNum) {
    if (deletedDocs == null) {
      deletedDocs = new BitVector(maxDoc());
      deletedDocsRef = new AtomicInteger(1);
    }
    // there is more than 1 SegmentReader with a reference to this
    // deletedDocs BitVector so decRef the current deletedDocsRef,
    // clone the BitVector, create a new deletedDocsRef
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  public int getDelCount() throws IOException {
    if (delCount == -1) {
      if (hasDeletions()) {
        final String delFileName = getDelFileName();
        delCount = new BitVector(dir, delFileName).count();
      } else
        delCount = 0;
    }
    assert delCount <= docCount;
    return delCount;
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        message("commitMerge " + merge.segString(directory));

      // Carefully merge deletes that occurred after we
      // started merging:

      BitVector deletes = null;
      int docUpto = 0;

      final int numSegmentsToMerge = sourceSegments.size();
      for(int i=0;i<numSegmentsToMerge;i++) {
        final SegmentInfo previousInfo = sourceSegmentsClone.info(i);
        final SegmentInfo currentInfo = sourceSegments.info(i);

        assert currentInfo.docCount == previousInfo.docCount;

        final int docCount = currentInfo.docCount;

        if (previousInfo.hasDeletions()) {

          // There were deletes on this segment when the merge
          // started.  The merge has collapsed away those
          // deletes, but, if new deletes were flushed since
          // the merge started, we must now carefully keep any
          // newly flushed deletes but mapping them to the new
          // docIDs.

          assert currentInfo.hasDeletions();

          // Load deletes present @ start of merge, for this segment:
          BitVector previousDeletes = new BitVector(previousInfo.dir, previousInfo.getDelFileName());

          if (!currentInfo.getDelFileName().equals(previousInfo.getDelFileName())) {
            // This means this segment has had new deletes
            // committed since we started the merge, so we
            // must merge them:
            if (deletes == null)
              deletes = new BitVector(merge.info.docCount);

            BitVector currentDeletes = new BitVector(currentInfo.dir, currentInfo.getDelFileName());
            for(int j=0;j<docCount;j++) {
              if (previousDeletes.get(j))
                assert currentDeletes.get(j);
              else {
                if (currentDeletes.get(j))
                  deletes.set(docUpto);
                docUpto++;
              }
            }
          } else
            docUpto += docCount - previousDeletes.count();
       
        } else if (currentInfo.hasDeletions()) {
          // This segment had no deletes before but now it
          // does:
          if (deletes == null)
            deletes = new BitVector(merge.info.docCount);
          BitVector currentDeletes = new BitVector(directory, currentInfo.getDelFileName());

          for(int j=0;j<docCount;j++) {
            if (currentDeletes.get(j))
              deletes.set(docUpto);
            docUpto++;
          }

        } else
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  }

  private void loadDeletedDocs() throws IOException {
    // NOTE: the bitvector is stored using the regular directory, not cfs
    if (hasDeletions(si)) {
      deletedDocs = new BitVector(directory(), si.getDelFileName());
      deletedDocsRef = new Ref();
      assert checkDeletedCounts();
    } else
      assert si.getDelCount() == 0;
  }
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    return si.hasSeparateNorms();
  }

  protected void doDelete(int docNum) {
    if (deletedDocs == null) {
      deletedDocs = new BitVector(maxDoc());
      deletedDocsRef = new Ref();
    }
    // there is more than 1 SegmentReader with a reference to this
    // deletedDocs BitVector so decRef the current deletedDocsRef,
    // clone the BitVector, create a new deletedDocsRef
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      tis = new TermInfosReader(cfsDir, segment, fieldInfos);
     
      // NOTE: the bitvector is stored using the regular directory, not cfs
      if (hasDeletions(si)) {
        deletedDocs = new BitVector(directory(), si.getDelFileName());

        // Verify # deletes does not exceed maxDoc for this segment:
        if (deletedDocs.count() > maxDoc()) {
          throw new IllegalStateException("number of deletes (" + deletedDocs.count() + ") exceeds max doc (" + maxDoc() + ") for segment " + si.name);
        }
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    return si.hasSeparateNorms();
  }

  protected void doDelete(int docNum) {
    if (deletedDocs == null)
      deletedDocs = new BitVector(maxDoc());
    deletedDocsDirty = true;
    undeleteAll = false;
    deletedDocs.set(docNum);
  }
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    fieldNameBuffer.clear();


    // update deleted documents bitset
    if (index.getDeletedDocuments() != null) {
      BitVector deletedDocuments = new BitVector(index.getDocumentsByNumber().length);
      for (int i = 0; i < index.getDeletedDocuments().size(); i++) {
        if (index.getDeletedDocuments().get(i)) {
          deletedDocuments.set(i);
        }
      }
      index.setDeletedDocuments(deletedDocuments);
    }
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  public int getDelCount() throws IOException {
    if (delCount == -1) {
      if (hasDeletions()) {
        final String delFileName = getDelFileName();
        delCount = new BitVector(dir, delFileName).count();
      } else
        delCount = 0;
    }
    assert delCount <= docCount;
    return delCount;
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