@Override public int hashCode() { final int prime = 31; int result = 1; result = prime * result + ((idDaysOfWeek == null) ? 0 : idDaysOfWeek.hashCode()); result = prime * result + ((openTime == null) ? 0 : openTime.hashCode()); result = prime * result + ((user == null) ? 0 : user.hashCode()); result = prime * result + ((userSchedulePK == null) ? 0 : userSchedulePK.hashCode()); return result; }