NTO-2025-Backend-TeamTask-1/src/main/java/com/example/nto/service/EmployeeService.java

package com.example.nto.service;

import com.example.nto.entity.Employee;

import java.util.Optional;


public interface EmployeeService {

    boolean existsByCode(String code);

    Optional<Employee> findByCode(String code);
}