@CustomVoterCheck(EmployeeSalaryUpdateVoter.class)
public void updateSalary(Employee employee) {
Employee dataEmployee = data.getEmployee(employee.getId());
if (dataEmployee.getSalary() > employee.getSalary()) {
throw new EmployeeLowerSalaryException();
}
dataEmployee.setSalary(employee.getSalary());
data.updateEmployee(dataEmployee);
}