hql：内部联接与Map＆lt; key，value＆gt;并在select中访问键和值？

    public class Company
    {
            private Map<Location, Manager> locationManagerMap;
    } 

    public class Assignment
    {
            private Location location;
            private Manager
    } 

    String query = "select from Assignment as assignment where (assignment.location, assignment.manager) in (select locationManager._____________ from Company as company inner join  company.locationManagerMap as locationManager where company.id=?) "