java JPA中的单向OneToMany关系

Posted 2021-05-08

The Owner (The "many" side):
@Id
@Column(name="Id")
private Long id;
  
@Column(name = "ProductId", insertable = false, updatable = false)
private Long productId;

The "One" side:

@OneToMany(cascade = CascadeType.ALL)
@JoinColumn(name = "ProductId", referencedColumnName = "Id", nullable = false)
private List<Thing> things = new ArrayList<>();