if (employee != null) { return employee.getLastDepartmentWorkingPlace(begin, end); } return null;
return (employee != null) ? employee.getLastDepartmentWorkingPlace(begin, end) : null;
    public Department getLastWorkingDepartment(YearMonthDay begin, YearMonthDay end) {	Employee employee = this.getPerson().getEmployee();	if (employee != null) {	    return employee.getLastDepartmentWorkingPlace(begin, end);	}	return null;    }