Spring JPA-@OneToMany为每个关系创建单独的表

Question

我想创建一个名为

的类型

@Entity
class TestType {
   @Id
   private Long id;
   private String field1;
   private String field2;
}

@Entity
class Agregator{
   @Id
   private Long id;
   private String name;
   @OneToMany
   private List<TestType> newTypes;
   @OneToMany
   private List<TestType> oldTypes;
}

我想拥有3张桌子：

• 聚合器
• 具有agregator_id列的agregator_new_types;
• 具有agregator_id列的agregator_old_types;

我需要如何定义关系以获得此类表和列？

Answer 1

@Embeddable
class TestType {
   @Id
   private Long id;
   private String field1;
   private String field2;
}

@Entity
class Agregator{
   @Id
   private Long id;
   private String name;
   @ElementCollection
   private List<TestType> newTypes;
   @ElementCollection
   private List<TestType> oldTypes;
}