String childName = reader.getNodeName();
Class<?> childClass = mapper.realClass(childName);
if (GraphNode.class.isAssignableFrom(childClass)) {
GraphNode node = (GraphNode) context.convertAnother(null, childClass);
result.addNode(node);
}
else if (GraphEdge.class.isAssignableFrom(childClass)) {
GraphEdge edge =
(GraphEdge) context.convertAnother(null, childClass);
result.addEdge(edge);