我有两个带有复合主键的表，我希望使用jpa

Question

数据库表详情：

EmployeeDetail：

• PK由employeeId和team组成，其他列为lname，fname

EmployeePerformance：

• PK由employeeId和employeeId，month组成，其他列为grade

我应该如何编写上表详细信息的实体类（持久性）？

我有两个具有嵌入式ID

的持久化类

@Entity
public class EmployeePerformance  {

  @EmbeddedId
  private EmployeePerformancePK emplPerfPK;

  private String grade;
}


@Embeddable
public class EmployeePerformancePK   {

  private int employeeId;
  private String month;
}


@Entity
public class EmployeeDetail  {

  @EmbeddedId
  private EmployeeDetailPK emplPerfPK;

  private String lname;
  private String fname;

}


@Embeddable
public class EmployeeDetailPK   {

  private int employeeId;
  private String team;

}

使用JPA概念

我想在spring web service

中执行此查询

SELECT 
FROM EmployeeDetail
INNER JOIN EmployeePerformance ON EmployeeDetail.employeeId = EmployeePerformance.employeeId 
WHERE EmployeePerformance.grade = "B";