My code 
empDet emp=repository.findByActiveFlag("Y");
Here empDet is a entity with 3 columns 
1.empid
2.empName
3.ActiveFlag

Table with 10 rows so i will use foreach 
emp.forEach(e-> {
---mycode---
---and here i got values--

});
Now my question is how to get Column name from Jpa or foreach loop