JPA:如何设置一个具有多个子实体和多个父实体类型相同的实体？

@Entity
public class MyEntity {
    // 多个子实体
    @OneToMany(mappedBy = "myEntity")
    private List<ChildEntity> childEntities;

    // 多个父实体
    @ManyToOne
    private ParentEntity1 parentEntity1;

    @ManyToOne
    private ParentEntity2 parentEntity2;

    // 其他属性和方法
}

@Entity
public class ChildEntity {
    // 多个子实体对应一个父实体
    @ManyToOne
    private MyEntity myEntity;

    // 其他属性和方法
}

@Entity
public class ParentEntity1 {
    // 多个父实体对应多个子实体
    @OneToMany(mappedBy = "parentEntity1")
    private List<MyEntity> myEntities;

    // 其他属性和方法
}

@Entity
public class ParentEntity2 {
    // 多个父实体对应多个子实体
    @OneToMany(mappedBy = "parentEntity2")
    private List<MyEntity> myEntities;

    // 其他属性和方法
}

<persistence-unit name="myPersistenceUnit" transaction-type="RESOURCE_LOCAL">
    <class>com.example.MyEntity</class>
    <class>com.example.ChildEntity</class>
    <class>com.example.ParentEntity1</class>
    <class>com.example.ParentEntity2</class>
    <properties>
        <!-- 数据库连接配置 -->
        <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/mydatabase"/>
        <property name="javax.persistence.jdbc.user" value="root"/>
        <property name="javax.persistence.jdbc.password" value="password"/>
        <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/>
    </properties>
</persistence-unit>

EntityManagerFactory emf = Persistence.createEntityManagerFactory("myPersistenceUnit");
EntityManager em = emf.createEntityManager();

// 创建实体对象
MyEntity myEntity = new MyEntity();
ChildEntity childEntity = new ChildEntity();
ParentEntity1 parentEntity1 = new ParentEntity1();
ParentEntity2 parentEntity2 = new ParentEntity2();

// 设置实体之间的关联关系
myEntity.getChildEntities().add(childEntity);
myEntity.setParentEntity1(parentEntity1);
myEntity.setParentEntity2(parentEntity2);
childEntity.setMyEntity(myEntity);
parentEntity1.getMyEntities().add(myEntity);
parentEntity2.getMyEntities().add(myEntity);

// 持久化实体
em.getTransaction().begin();
em.persist(myEntity);
em.getTransaction().commit();

// 查询实体
MyEntity retrievedEntity = em.find(MyEntity.class, entityId);

// 更新实体
em.getTransaction().begin();
retrievedEntity.setSomeProperty(newValue);
em.getTransaction().commit();

// 删除实体
em.getTransaction().begin();
em.remove(retrievedEntity);
em.getTransaction().commit();

// 关闭EntityManager和EntityManagerFactory
em.close();
emf.close();