public void setNumber(List<TNumber> list) {
    this._number_.clear();
    this._number_.addAll(list);
    for (TNumber e : list) {
      if (e.parent() != null) {
        e.parent().removeChild(e);
      }

      e.parent(this);
    }
  }
  public void setNumber(TNumber node) {
    if (this._number_ != null) {
      this._number_.parent(null);
    }

    if (node != null) {
      if (node.parent() != null) {
        node.parent().removeChild(node);
      }

      node.parent(this);
    }

    this._number_ = node;
  }