Question

Take the scenario

BaseA -> SubB -> SubSubC

Explanation: SubSubC class inherits SubB class. The SubB class inherits BaseA class

BaseA -> SubD -> SubSubE

Explanation: SubSubE class inherits SubD class. The SubB class inherits BaseA class

So..on..

So there are many class that has its grand parent class as BaseA . The BaseA class has some properties that are common to all the methods. ex: CustomerID, LastLogin, UniqueName etc.

This is how the class is designed in the service which I’m consuming.

My doubt is While calling the service methods, all the methods would expect a parameter of any SubSub class. Can anyone please tell me, is there any way if I could assign values to the properties of the BaseA in one place so that while creating the SubSub objects I did not need to fill the base properties each time?

I’m using C# as my language.

Code:

public class BaseA
    {
        public int CustomerId { get; set; }
        public string UniqueName { get; set; }
    }

    public class SubB : BaseA
    {
    }
    public class SubSubC : SubB
    {

    }

    public class SubD : BaseA
    {
    }
    public class SubSubE : SubD
    {

    }

    public class MyMain
    {
        public void SendRequestToService1()
        {
            (new MyServiceObject()).ServiceMethod1(new SubSubC());
        }

        public void SendRequestToService2()
        {
            (new MyServiceObject()).ServiceMethod2(new SubSubE());
        }
    }

In the above code, in SendRequestToService1 and SendRequestToService2 , i need to initialise the base class properties CustomerId and UniqueName.
Ex:

(new SubSubC(){ CustomerId=2, UniqueName="XXBB" });

If there are many methods, I need to initialize these properties each time for their respective classes. Is there a way I can initialize the base properties CustomerId and UniqueName in one place so that the inheriting classes(SubSubC,SubSubE here) no need to initialize when their objects are created?

Answer 1

Are you looking for the following functionality?

    //dummy class replacing the service object and it's methods
    public class MyServiceObject
    {
        public void ServiceMethod1(SubSubC param)
        { }
        public void ServiceMethod2(SubSubE param)
        { }
    }

    public class BaseA
    {
        public int CustomerId { get; set; }
        public string UniqueName { get; set; }
    }

    public class SubB : BaseA
    {
    }
    public class SubSubC : SubB
    {
    }

    public class SubD : BaseA
    {
    }
    public class SubSubE : SubD
    {
    }

    public class MyMain
    {
        //declare the SubSub objects
        //SubSubC subSubC;
        //SubSubE subSubE;
        BaseA baseA;

        public MyMain()
        {
            //assign the values to each class in the MyMain contrsuctor
            baseA = new BaseA { CustomerId = 2, UniqueName = "XXBB" };

        }

        public void SendRequestToService1()
        {
            var subSub=new SubSubC();
            (new MyServiceObject()).ServiceMethod1(Initialize(subSub));
        }

        public void SendRequestToService2()
        {
            var subSub = new SubSubE();
            (new MyServiceObject()).ServiceMethod2(Initialize(subSub));
        }

        private T Initialize<T>(T subSub) where T:BaseA
        {
            subSub.CustomerId = baseA.CustomerId;
            subSub.UniqueName = baseA.UniqueName;
            return subSub;
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            MyMain myMain = new MyMain();
            myMain.SendRequestToService1();
            myMain.SendRequestToService2();
        }
    }