Abstract Factory Pattern
Abstract Factory pattern is used when you want to create families of products. It relies on composition so methods exposed in factory interface are responsible for the creation of objects.
Abstract Factory Pattern Example
Here is an example of a Abstract Factory pattern with 2 families of products.
// Abstract Factory
abstract class MobileFactory
{
public abstract SimpleMobile CreateSimpleMobile();
public abstract AdvancedMobile CreateAdvancedMobile();
}
//ConcreteFactoryOne
class SamsungMobileFactory : MobileFactory
{
// CreateProductX
public override SimpleMobile CreateSimpleMobile()
{
return new SamsungSimpleMobile();
}
// CreateProductY
public override AdvancedMobile CreateAdvancedMobile()
{
return new SamsungAdvancedMobile();
}
}
//ConcreteFactoryTwo
class HTCMobileFactory : MobileFactory
{
// CreateProductX
public override SimpleMobile CreateSimpleMobile()
{
return new HTCSimpleMobile();
}
// CreateProductY
public override AdvancedMobile CreateAdvancedMobile()
{
return new HTCAdvancedMobile();
}
}
// AbstractProductX
abstract class SimpleMobile
{
}
// AbstractProductY
abstract class AdvancedMobile
{
}
// ProductXOne
class SamsungSimpleMobile : SimpleMobile
{
}
// ProductYOne
class SamsungAdvancedMobile : AdvancedMobile
{
}
// ProductXTwo
class HTCSimpleMobile : SimpleMobile
{
}
// ProductYTwo
class HTCAdvancedMobile : AdvancedMobile
{
}
class Client
{
private SimpleMobile _abstractProductX;
private AdvancedMobile _abstractProductY;
public Client(MobileFactory factory)
{
_abstractProductX = factory.CreateSimpleMobile();
_abstractProductY = factory.CreateAdvancedMobile();
}
public void Print()
{
Console.WriteLine(this._abstractProductX.ToString() + " Created!");
Console.WriteLine(this._abstractProductY.ToString() + " Created!");
}
}
class Program
{
static void Main(string[] args)
{
MobileFactory abstractFactoryOne = new SamsungMobileFactory();
Client client1 = new Client(abstractFactoryOne);
client1.Print();
MobileFactory abstractFactoryTwo = new HTCMobileFactory();
Client client2 = new Client(abstractFactoryTwo);
client2.Print();
Console.ReadKey();
}
}
Abstract Factory Pattern Output
