/**
   * Un-marshal an object instance from the data input stream
   *
   * @param o the object to un-marshal
   * @param dataIn the data input stream to build the object from
   * @throws IOException
   */
  public void tightUnmarshal(
      OpenWireFormat wireFormat, Object o, DataInput dataIn, BooleanStream bs) throws IOException {
    super.tightUnmarshal(wireFormat, o, dataIn, bs);

    ControlCommand info = (ControlCommand) o;
    info.setCommand(tightUnmarshalString(dataIn, bs));
  }
  /**
   * Un-marshal an object instance from the data input stream
   *
   * @param o the object to un-marshal
   * @param dataIn the data input stream to build the object from
   * @throws IOException
   */
  public void tightUnmarshal(
      OpenWireFormat wireFormat, Object o, DataInput dataIn, BooleanStream bs) throws IOException {
    super.tightUnmarshal(wireFormat, o, dataIn, bs);

    ReplayCommand info = (ReplayCommand) o;
    info.setFirstNakNumber(dataIn.readInt());
    info.setLastNakNumber(dataIn.readInt());
  }