小编use*_*031的帖子

我们正在开展一个迁移项目，我们正在从 HBM 文件迁移到注释。

当我尝试在属性上设置值时，我们面临重复的列映射问题，该属性基本上是同一类的实例。

public class Salary{

    // All the below are coming from lookup table like empLookUp, MonthLookup, 
    // YearLookup, CurrencyLookUp and they are joined using their primary key

    private int empId;
    private int month;
    private int year;
    private String currency;

    // Issue here: previousMonthSalary actually needs to be populated when the 
    // Salary is loaded, but for previous month. How do I achieve this.

    private Salary previousMonthSalary;

}

如何绘制地图previousMonthSalary？