@Override
  public String toString() {
    return "Topic('" + myDisplayName + "'" +
           (myBroadcastDirection == BroadcastDirection.NONE ? "" : ", direction=" + myBroadcastDirection) +
           (myImmediateDelivery ? ", immediateDelivery" : "") +
           ", listenerClass=" + myListenerClass + ')';
  }
@Override
  public String toString()