question: public List < Employee > findByDepartmentDesignationAndBoundary ( final Long deptId , final Long desigId , final Long boundaryId ) { final Set < Long > bndIds = new HashSet < Long > ( ) ; final List < Boundary > boundaries = boundaryService . findActiveChildrenWithParent ( boundaryId ) ; boundaries . forEach ( null ) ; return employeeRepository . findByDepartmentDesignationAndBoundary ( deptId , desigId , bndIds ) ; }
target:  Get List of employee objects by department ,designation and boundary ids