private List<MapListener> mapListeners;
@XStreamConverter(SkippingCollectionConverter.class)
private List<Notifier> statusListeners;
public Map() {
history = new CommandHistory(Settings.getInt("commandhistory.size", 20));
graph = new SparseMultigraph<Device, Connection>();
layout = new StaticLayout<Device, Connection>(this);
mapListeners = new LinkedList<MapListener>();
statusListeners = new LinkedList<Notifier>();
}