combining data from relational db and jcr

[danisevsky]

Hello, I have users stored in relational db. Each user has its own
jacrabbit folder in which are photos, comments, etc. Folder is created
after user registration. I do not know how to best create path to this
folder. I am thinking about this algorithm:

        public static String createFolderPathForUser(User user) {
                StringBuilder path = new StringBuilder();
                String uuid = UUID.randomUUID().toString();
                String shorterUUID = uuid.substring(0, 10);
                char[] chars = new char[shorterUUID.length()];
                shorterUUID.getChars(0, shorterUUID.length(), chars, 0);
                for (int i = 0; i < chars.length; i++) {
                        path.append(chars[i] + "/");
                }
                path.append(user.getId());
                return path.toString();
        }

which get for user with id=123 e.g. this path:

1/4/c/9/6/7/b/c/-/e/123

and this path save to user field in relational db.

Is it good solutions? A have not much experiences with jackrabbit.

Thanks.