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