using System;

using Microsoft.Practices.Unity;

​

​

public class Program

{

 public static void Main()

 {

  IUnityContainer container = new UnityContainer();

  container.RegisterType<IEntityManager, EntityManager>();

  container.RegisterType<ICustomer, Customer>(); //transient, a new customer always

  container.RegisterType<IAddress, Address>();   //transient, a new address always

  container.RegisterType<IDBContext, DBContext>(new PerResolveLifetimeManager());        

  IEntityManager em0 = container.Resolve<IEntityManager>();

  IEntityManager em1 = container.Resolve<IEntityManager>();

​

  Console.WriteLine("DBContextinstance" + em0.address.context.instNumbr.ToString());  //should output DBContextinstance1

  Console.WriteLine("DBContextinstance" + em0.customer.context.instNumbr);//should output DBContextinstance1

  Console.WriteLine("DBContextinstance" + em1.address.context.instNumbr); //should output DBContextinstance2

  Console.WriteLine("DBContextinstance" + em1.customer.context.instNumbr); //should output DBContextinstance2

​

 }

}

​

public interface IEntityManager{

     ICustomer customer

    {

        get;

    }

     IAddress address

    {

        get;

    }

}

​

public class EntityManager : IEntityManager

{

    private ICustomer cust;

    private IAddress addr;

    public EntityManager(ICustomer customer, IAddress address)

    {

        cust = customer;

        addr = address;

    }

    public   ICustomer customer

    {

             get {return cust;}

    }

     public IAddress address

    {

         get {return addr;}

    }

}

​

public interface ICustomer{

     IDBContext context

    {

        get;

    }

}

​

public class Customer : ICustomer

{

    private IDBContext cntx;

    public Customer(IDBContext context)

    {

        cntx = context;

    }

     public IDBContext context

    {

         get {return cntx;}

    }

}

​

public interface IAddress{

         IDBContext context

    {

        get;

    }

}

​

public class Address : IAddress

{

    private IDBContext cntx;

    public Address(IDBContext context)

    {

        cntx = context;

    }

    public IDBContext context

    {

         get {return cntx;}

    }

}

​

public interface IDBContext{

         int instNumbr

    {

        get;

    }

}

​

public class DBContext : IDBContext

{

     private static int contextInstanceNumber = 0;

    private int number;

    public DBContext()

    {

        contextInstanceNumber = contextInstanceNumber+1;

        number = contextInstanceNumber;

    }

    public int instNumbr

    {

        get {return number;}

    }

}

​