@Override
  public void init(ByteArrayRef bytes, int start, int length) {
    LazyBinaryUtils.readVInt(bytes.getData(), start, vInt);
    assert (length == vInt.length);
    data.set(vInt.value);
  }
Initializes LazyBinaryDate object.
@param bytes
@param start
@param length
serde/src/java/org/apache/hadoop/hive/serde2/lazybinary/LazyBinaryDate.java