SchemaNodeFactoryImpl schemaNF = new SchemaNodeFactoryImpl(PropDef.DB_SCHEMA);
Node startNode = schemaNF.getSubRefernceNode();
Traverser trav  = startNode.traverse(
                Traverser.Order.DEPTH_FIRST,
                StopEvaluator.DEPTH_ONE,
                ReturnableEvaluator.ALL_BUT_START_NODE,
                SeddexRelationshipTypes.CHILDOF,
                Direction.OUTGOING);

for (Node schemaNode : trav){
    SchemaNode sn = new SchemaNodeImpl(schemaNode);
    System.out.println(sn.getName());
}