@Override
    public Object getStructFieldData(Object object, StructField field) {
      if (object == null) {
        return null;
      }
      int offset = ((Field) field).offset;
      OrcStruct struct = (OrcStruct) object;
      if (offset >= struct.fields.length) {
        return null;
      }

      return struct.fields[offset];
    }
Destructively make this object link to other's values.
@param other the value to point to
ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcStruct.java