One to One Mapping in Springboot Jpa

 

One to One Mappin in Springboot models

One to One relation b/w customer and order means one customer can place only one order at a time First Model(table)

Customer

@Entity @AllArgsConstructor @NoArgsConstructor @ToString @Data public class Customer { @Id @GeneratedValue private int id; private String customerName; private String customerContact; @OneToOne(mappedBy = "customer", cascade = CascadeType.ALL) private Order order; public Customer(String customerName, String customerContact){ this.customerContact = customerContact; this.customerName = customerName; } }

Order

@Entity @Data @AllArgsConstructor @NoArgsConstructor @Table(name = "orders") public class Order { @Id @GeneratedValue private int id; private double total; private String orderType; private Date orderDate; @OneToOne @MapsId private Customer customer; public Order(double total, String orderType, Date orderDate) { this.total = total; this.orderType = orderType; this.orderDate = orderDate; } }