package examples.entity.bid.one_to_one; import java.io.Serializable; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.OneToOne; @Entity(name="ShipmentBid") public class Shipment implements Serializable { private int id; private String city; private String zipcode; private Order order; public Shipment() { id = (int)System.nanoTime(); } @Id public int getId() { return id; } public void setId(int id) { this.id = id; } public String getCity() { return city; } public void setCity(String city) { this.city = city; } public String getZipcode() { return zipcode; } public void setZipcode(String zipcode) { this.zipcode = zipcode; } @OneToOne(mappedBy="shipment") public Order getOrder() { return order; } public void setOrder(Order order) { this.order = order; } }