Student Name:
Assume that the following code snippet describes how an online retailer might fulfill a customer order.
void process_customer_order( ordered_item, credit_card, mailing_address ) { // Place a soft reservation on the customer's credit card for the item // they ordered reservation = credit_card.create_reservation( ordered_item.get_price() ) // Determine which warehouse will fulfill this order, based on the // customer's location and the availability of that item. Then ship // the item warehouse = determine_warehouse( mailing_address, ordered_item ) warehouse.ship_item( ordered_item, mailing_address ) // After the item has shipped, release the reservation and actually // charge the credit card if( reservation.release() ) credit_card.charge_funds( ordered_item.get_price() ) } }