@JoinFormula和@OneToMany定义-较差的文档

@JoinFormula和@OneToMany定义-较差的文档

答案1：

@Size(max=10)private List<Comment> commentList;

答案2 ：（仅是这样的例子）

public class A{    @Id    @GeneratedValue    private Integer id;    private String uuid;    ...  }

其他班级

public class B{      @Id       @GeneratedValue      private Integer id;      private String uuidOfA;  @ManyToOne  @JoinColumnsOrFormulas({  @JoinColumnOrFormula(formula=@JoinFormula(value="(SELECt a.id FROM A a WHERe a.uuid = uuid)", referencedColumnName="id")),  @JoinColumnOrFormula(column = @JoinColumn("uuidOfA", referencedColumnName="uuid"))})     private A a;      }