Question

请考虑以下内容

@Entity
@Table
@Check(constraints = "A IS NOT NULL OR B IS NOT NULL")    
public class Model {

@Id
private Long id;

private A a;

private B b;

}

问题是我不知道如何命名checkConstraint吗？我想要的是类似@Check（constraints = @Constraint（“ name” =“ CHK_CONST_1”，“ A IS NOT NULL或B IS NOT NULL”））的东西

Answer 1

我认为您应该使用@Column和name属性来指定列的名称。

@Entity
@Table
@Check(constraints = "COL_A IS NULL OR COL_B IS NOT NULL")    
public class Model {

   @Id
   private Long id;

   @Column(name = "COL_A")
   private A a;

   @Column(name = "COL_B")
   private B b;

}

检查此：-Hibernate Check Annotation

通过JPA的HIbernate检查约束名称

1 个答案: