1対多リレーションシップ（スプリングクルドレポジトリを使用）

Question

私は、その内部に支払いエンティティのリストを持つ1つの注文エンティティを保持しようとしています。セーブ操作はカスケードされ、セービングオーダーはその中のすべてのペイメントを保存します。注文表には注文ID、価格、数量があり、支払いテーブルには注文ID、支払いID、値、作成および更新番号があります。注文を保存するとき、注文は自動生成されたorderidで完璧に保存されますが、支払いはorderidがnullになる以外はすべて問題ありません。オーダーテーブルのオーダーIDは、支払いテーブルのオーダーIDに割り当てる必要があります。助けてください。

Order.java

@Entity 
@Table(schema="public") 
@NamedQuery(name="Order.findAll", query="SELECT o FROM Order o") 
public class Order implements Serializable { 
    private static final long serialVersionUID = 1L; 

    @Id 
    @GeneratedValue(strategy=GenerationType.AUTO) 
    private int orderid; 

    private Integer price; 

    private Integer qty; 

    //bi-directional many-to-one association to Payment 
    @OneToMany(mappedBy="order", fetch=FetchType.EAGER,cascade=CascadeType.ALL) 
    private List<Payment> payments; 

    public Order() { 
    } 

    public Integer getPrice() { 
     return this.price; 
    } 

    public void setPrice(Integer price) { 
     this.price = price; 
    } 

    public Integer getQty() { 
     return this.qty; 
    } 

    public void setQty(Integer qty) { 
     this.qty = qty; 
    } 

    public int getOrderid() { 
     return orderid; 
    } 

    public void setOrderid(int orderid) { 
     this.orderid = orderid; 
    } 

    public List<Payment> getPayments() { 
     return this.payments; 
    } 

    public void setPayments(List<Payment> payments) { 
     this.payments = payments; 
    } 

    public Payment addPayment(Payment payment) { 
     if(payment!=null){ 
      payment.setOrder(this); 
      getPayments().add(payment);   
     }  

     return payment; 
    } 

    public Payment removePayment(Payment payment) { 
     getPayments().remove(payment); 
     payment.setOrder(null); 

     return payment; 
    } 

    @Override 
    public String toString() { 
     return "Order [orderid=" + orderid + ", price=" + price + ", qty=" + qty + ", payments=" + payments + "]"; 
    } 

} 

payment.java

@Entity 
@Table(schema="public") 
@NamedQuery(name="Payment.findAll", query="SELECT p FROM Payment p") 
public class Payment implements Serializable { 
    private static final long serialVersionUID = 1L; 

    @Temporal(TemporalType.DATE) 
    private Date created; 

    @Id 
    @GeneratedValue(strategy=GenerationType.AUTO) 
    private Integer paymentid; 

    @Temporal(TemporalType.DATE) 
    private Date updated; 

    private Integer value; 

    //bi-directional many-to-one association to Order 
    @ManyToOne(cascade=CascadeType.ALL) 
    @JoinColumn(name="orderid", referencedColumnName="orderid") 
    private Order order; 

    public Payment() { 
    } 

    public Date getCreated() { 
     return this.created; 
    } 

    public void setCreated(Date created) { 
     this.created = created; 
    } 

    public Integer getPaymentid() { 
     return this.paymentid; 
    } 

    public void setPaymentid(Integer paymentid) { 
     this.paymentid = paymentid; 
    } 

    public Date getUpdated() { 
     return this.updated; 
    } 

    public void setUpdated(Date updated) { 
     this.updated = updated; 
    } 

    public Integer getValue() { 
     return this.value; 
    } 

    public void setValue(Integer value) { 
     this.value = value; 
    } 

    public Order getOrder() { 
     return this.order; 
    } 

    public void setOrder(Order order) { 
     this.order = order; 
    } 

    @Override 
    public String toString() { 
     return "Payment [created=" + created + ", paymentid=" + paymentid + ", updated=" + updated + ", value=" + value 
       + ", order=" + order + "]"; 
    } 

} 

orderController.java

@RestController 
public class OrderController { 

    @Autowired 
    OrderService orderService; 
    @Autowired 
    PaymentService paymentService; 

    @RequestMapping(method=RequestMethod.PUT, value="/order") 
    public void createOrder(@RequestBody Order o){ 
     System.out.println(o); 
     orderService.createOrUpdateOrder(o); 
     System.out.println("Order Created"); 
    } 
    @RequestMapping(method=RequestMethod.POST, value="/order") 
    public void updateOrder(@RequestBody Order o){ 
     orderService.createOrUpdateOrder(o); 
     System.out.println("Order Updated"); 
    } 

    @RequestMapping(method=RequestMethod.DELETE, value="/order") 
    public void deleteOrder(@RequestBody Order o){ 
     orderService.deleteOrder(o); 
     System.out.println("Order Deleted"); 
    } 

    @RequestMapping(method=RequestMethod.PUT, value="/payment") 
    public void createPayment(@RequestBody Order o){ 
     paymentService.createOrUpdatePayments(o); 
     System.out.println("Payment Created"); 
    } 
    @RequestMapping(method=RequestMethod.POST, value="/payment") 
    public void updatePayment(@RequestBody Order o){ 
     paymentService.createOrUpdatePayments(o); 
     System.out.println("Payment Updated"); 
    } 

    @RequestMapping(method=RequestMethod.DELETE, value="/payment") 
    public void deletePayment(@RequestBody Order o){ 
     paymentService.deletePayments(o);; 
     System.out.println("Payment Deleted"); 
    } 
} 

orderservice.java

@Service 
public class OrderService { 

    @Autowired 
    OrderRepository orderRepository; 

    public void createOrUpdateOrder(Order o){ 
     orderRepository.save(o); 

    } 
    public void deleteOrder(Order o){ 
     orderRepository.delete(o.getOrderid()); 

    } 

    public Order getOrderDetails(Order o){ 
     return orderRepository.findOne(o.getOrderid()); 
    } 
} 

OrderRepository.java

@Repository 
public interface OrderRepository extends CrudRepository<Order, Integer> { 
} 

出力：

Order Table

Payment table where orderid is null

Answer 1

あなたはサービスのcreateOrUpdateOrderでこれを試してみて、私は
は、あなたがこのより良い見つけることができるかもしれませ知らせることができます

public void createOrUpdateOrder(Order o){ 
    List<Payment> payments = new ArrayList<>(); 
    for(Payment payment : order.getPayments()) { 
     payment.setOrder(order); 
     payments.add(payment); 
    } 
    order.setPayments(payments); 
    orderRepository.save(o); 
}