如何使用条件构建器编写复杂查询

Question

请帮助我获取以下给定实体类的以下sql的条件构建器版本：

SQL：

select u.userid from employee e inner join user u on e.userid=u.userid 
inner join employee_project ep on ep.empId=e.empId 
inner join ep.projectId=p.projectId where p.projectId in (?,?...);

此外，它也应该可以用作子查询。

@Entity
@Table(name="Employee")
public class Employee {



    @Id
    @GeneratedValue(strategy= GenerationType.AUTO)
    private Long id;

    @OneToOne(optional=false, cascade=CascadeType.ALL, orphanRemoval=true)
    @JoinColumn(name="userId")
    private User user;

    @ManyToMany
    @JoinTable(
            name="Employee_Project",
            joinColumns={ @JoinColumn(name="empId", referencedColumnName="empId") },
            inverseJoinColumns={ @JoinColumn(name="prjId", referencedColumnName="prjId") }
    )

    private List<Project> project;

}