一个表可以使用休眠模式具有两列相同的外键吗？

Question

I need to have 2 columns in table B. Say column_1 one and column_2. Currently Table B has column_1.

Both column_1 and column_2 are primary key in Table A.

Table A is an Entity Class and Table B is an Entity Class as well.

column_1 is mapped as follows

@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "column_1", nullable = false)
private A a;

The Question here is, is this possible to do? If yes how should it be done?

Answer 1

I figured it out.

@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "column_1", nullable = false)
private A a;

@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "column_2", nullable = false)
private A b;

Map the variables a and b to a list in Class A.