class BookingBucket implements Comparable {

    @Override
    public int compareTo(Object o)
    {
        BookingBucket bb = (BookingBucket) o;
        return bb.priority.compareTo(this.priority);
    }

    public  BookingBucket();
    public  BookingBucket(String day, String bookingId, List<String> previousBookingOrder, int priority);
    public  BookingBucket(String id, Map source);

}