@Override
  public void init(ByteArrayRef bytes, int start, int length) {
    super.init(bytes, start, length);
    parsed = false;
    serializedSize = length;
  }
Construct a LazyBinaryStruct object with an ObjectInspector.
serde/src/java/org/apache/hadoop/hive/serde2/lazybinary/LazyBinaryStruct.java