public void graphNodeAdded(GraphNode node) { addGraphNode(node); } public void graphNodeRemoved(GraphNode node) {
protected void addGraphItems(Collection<GraphNode> nodesToAdd, Collection<GraphArc> arcsToAdd) { for (GraphNode node : nodesToAdd) { addGraphNode(node); } for (GraphArc arc : arcsToAdd) { addGraphArc(arc); } }