C#•2y ago

Interface that is implemented to multiple classes (different types of objects)

Method in class1:

public Employee CreateEmployee(EmployeeCreateModel1 model) { .... }

public Employee CreateEmployee(EmployeeCreateModel1 model) { .... }

Method in class2:

public Employee CreateEmployee(EmployeeCreateModel2 model) { .... }

public Employee CreateEmployee(EmployeeCreateModel2 model) { .... }

How could I create interface that would be used for both of them..

public interface EmployeeService {
  Employee CreateEmployee(??? createmodel);
}

public interface EmployeeService {
  Employee CreateEmployee(??? createmodel);
}

Any idea/advice?

6 Replies

Yawnder•2y ago

That's exactly what an interface is for. You create one that is implemented by multiple classes, and then you specify that that method takes in that interface. @reeeeeee

reeeeeee•2y ago

Yes but how would I specify the input parameter, if each service method expects different type

Yawnder•2y ago

If you expect a different implementation, then why bother with an interface? An interface is when you don't care about the implementation, as long as it meets some criteria.

reeeeeee•2y ago

I have some kind of a background worker, which uses two kinds of APIs. You specify type of API in the appsettings. The whole processing of the data is completely the same, except some models/DTO.. would be better to always check if type1 -> use service1, elee use service2?

Yawnder•2y ago

Without seeing the code itself it's hard to say, but yes, you could either do a type switch for that, or explore generics / generic registrations in your DI.

Unknown User•2y ago

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Interface that is implemented to multiple classes (different types of objects)