.containsJavaFieldName("ne"));
final Rectangle r = new Rectangle(1, 1);
final DBObject rDbObject = getMorphia().toDBObject(r);
rDbObject.put("_ns", rectangles.getName());
rectangles.save(rDbObject);
final ContainsRef cRef = new ContainsRef();
cRef.rect = new DBRef(getDb(), (String) rDbObject.get("_ns"), rDbObject.get("_id"));
final DBObject cRefDbObject = getMorphia().toDBObject(cRef);
stuff.save(cRefDbObject);