gistfile1.txt

    interface UserRelations {
        @Relation(Score.class)
        void getScores(QueryListener<Score> listener);
    }

    @Table(name="users")
    public abstract static class User implements Entity, UserRelations {

        public User() {}

        @Column(primaryKey = true)
        private long id = -1;

        @Column(name="user_name", unique = true, nullable = false)
        private String userName;

        public User(final String name) {
            userName = name;
        }

        public long getId() {
            return id;
        }

        public String getUserName() {
            return userName;
        }

        public void setUserName(final String username) {
            userName = username;
        }

    }