JoinColumn为两列的JPA实体

OrderItem 1->* suppliers (some one item can have many supplier prices)

Suppliers 1->1 supplier

Suppliers 1->1 itemPrices

OrderItem {orderId, partId, quantity, suppliers}

Suppliers {orderId, partId, Supplier}

我的问题是。。。

将Suppliers实体嵌入OrderItem实体的最佳方式是什么?请忘记Suppliers与supplier和itemprice之间的关系这已经使用联接列完成了。

@JoinTable(name = "Suppliers", joinColumns = { @JoinColumn(name = "orderid", referencedColumnName = "orderid") }, inverseJoinColumns = { @JoinColumn(name = "partid", referencedColumnName = "partid") })

或:

@OneToMany(mappedBy="orderid, partid")
private List<Suppliers> suppliers;