Abstract Factory

Abstract factory is the extension of basic Factory pattern. It provides Factory interfaces for creating a family of related classes. In other words, here I am declaring interfaces for Factories, which will in turn work in similar fashion as with Factories.

http://3.bp.blogspot.com/_DSP5FXX4Isw/S_RVzbZysGI/AAAAAAAAC9k/Om6kMgsSHSw/s320/abstractfactory.JPG

public interface  IFactory1
    {
        IPeople GetPeople();
    }
    public class  Factory1 : IFactory1
    {
        public IPeople GetPeople()
        {
            return new  Villagers();
        }
    }
 
    public interface  IFactory2
    {
        IProduct GetProduct();
    }
    public class  Factory2 : IFactory2
    {
        public IProduct GetProduct()
        {
            return new  IPhone();
        }
    }
 
    public abstract  class AbstractFactory12
    {
        public abstract  IFactory1 GetFactory1();
        public abstract  IFactory2 GetFactory2();
    }
 
    public class  ConcreteFactory : AbstractFactory12
    {
 
        public override  IFactory1 GetFactory1()
        {
            return new  Factory1();
        }
 
        public override  IFactory2 GetFactory2()
        {
            return new  Factory2();
        }
    }

The factory method is also implemented using common interface each of which returns objects.