} //Returns the DeliveryReceiver for this OrderLine public void RemoveDeliveryReceiver(DeliveryReceiver receiver) { DeliveryReceivers.RemoveByOrderLineReceiver(receiver); } //Removes the DeliveryReceiver from the OrderLine
} //Returns the OrderLineIdentifier—this is the unique identifier for the OrderLine //incrementNumberOrdered - Increments the number of ProductInstance recorded by the OrderLine //getNumberOrdered() - Returns the number of ProductInstances recorded by the OrderLine //decrementNumberOrdered - Decrements the number of ProductInstances recorded by the OrderLine public void AddDeliveryReceiver(DeliveryReceiver reciever) { DeliveryReceivers.Instance.Add(reciever); }