Task

Now let's get to the task:

Your task is to implement the methods in the classes RoleDaoImpl, RoleServiceImpl, EmployeeDaoImpl, and EmployeeServiceImpl. This is not difficult; you have done this many times. The only potential challenge might be with the updateRole method, but I'm confident you can handle it.

To test your solution, you need to run the code I have written for you in the main class. Then, you will need to compare the result with the correct result, which I will provide below.

Testing such large applications with database interaction implementation becomes increasingly challenging, so now your project will be tested by yourself (or you can peek at the Solution).

Correct output:

python
[Employee(id=1, name=John, salary=55000.0, hireDate=2021-10-05, department=Department(id=1, name=Marketing, location=Head Office), role=Role(id=1, name=Marketing Specialist, description=A dynamic role focused on developing and implementing strategies to promote brand awareness and drive product sales. Responsibilities include market research, content creation, and campaign management to enhance engagement and achieve business goals.)), Employee(id=2, name=Bob, salary=70000.0, hireDate=2022-02-18, department=Department(id=2, name=Development, location=IT Office), role=Role(id=2, name=Software Engineer, description=A software engineer writes and maintains the code for computer applications and systems.))]