How to use factory design pattern for my scenario

9y762Visual Basic .NET

now i have three class which i use to ship and those are Purolator, UPS and FedEx and each function has one common method which is Ship. now tell me how to use factory design pattern to make my code more reusable.

here is my sample code

--------------------------------

public class Purolator
{
public void Ship()
{
//-- code logic to implement shipping method for Purolator
}
}
public class UPS
{
public void Ship()
{
//-- code logic to implement shipping method for UPS
}
}
public class FexEx
{
public void Ship()
{
//-- code logic to implement shipping method for FexEx
}
}

now i create class instance by name separately when i require to use UPS or FedEx etc but how could i use factory design pattern to make my shipping business logic more reusable. please discuss it with a example code. thanks

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

Ramesh Palanivel9y ago
Hi trin,

Here I have mentioned the firs way is Repository Pattern....
9y ago
@Ramesh the code here you given is it factory pattern ? let me know.

thanks
Ramesh Palanivel9y ago
Hi Trin,

Create the ship method in interface class.. and inherit the class in all other three classes..

Ex :

public interface IShipDetails
{
void Ship();
}

public class Purolator : IShipDetails
{
public void Ship()
{
//write your functionalitiy
}
}

And you can achieve the same thing in another way , if you parent class only inherit only one class , if it is inherting more then one class , it will not suit....

ex :

public class ShipDetails
{
void Ship();
}

public class Purolator : ShipDetails
{
public void Ship()
{
//write your functionalitiy
}
}