public void graphNodeRemoved(GraphNode node) { removeGraphNode(node); } public void graphArcAdded(GraphArc arc) {
protected void removeGraphItems(Collection<GraphNode> nodesToRemove, Collection<GraphArc> arcsToRemove) { for (GraphNode node : nodesToRemove) { removeGraphNode(node); } for (GraphArc arc : arcsToRemove) { removeGraphArc(arc); } }