Question

Consider a class:

class Employee{
 Integer empId,
  //many other fields
}

I need a DAO method as shown below

 List<Integer> getAllEmployeeIds(){
 //??
 }
I dont want List<Employee> and  (NEW EDIT) Set<Intger>

How can i do that in hibernate?Am using hbm files for mapping

Answer 1

Like this. Also, I recommend use querydsl to make it type-safe.

List<Integer> getAllEmployeeIds(){
    return (List<Integer>)createQuery("select e.empId from Employee e").list();
}