public void Implement()
{
Console.WriteLine("\nLearning Dependency Injection Pattern\n");
// First Implementation (without using DI)
Commerce commerce = new Commerce();
Order o = new Order("Subash", "12245", "GWP", new Product("Dell"));
commerce.ProcessOrder(o);
// Second implementation of DI (using Constructor Injection)
Product product = new Product("Dell");
Order order = new Order("Subash", "12345", "GWP", product);
CommerceRepoDI_CtorInjection.BillingProcessor billingProcessor = new CommerceRepoDI_CtorInjection.BillingProcessor(order.CreditCard, order.CustomerName);
CommerceRepoDI_CtorInjection.CustomerProcessor customerProcessor = new CommerceRepoDI_CtorInjection.CustomerProcessor(order.CustomerName, product);
CommerceRepoDI_CtorInjection.Notifier notifier = new CommerceRepoDI_CtorInjection.Notifier(order);
CommerceRepoDI_CtorInjection.Commerce commerceDI = new CommerceRepoDI_CtorInjection.Commerce(billingProcessor, customerProcessor, notifier);
commerceDI.ProcessOrder();
// Third implementation of DI (using DI Container eg. Autofactory ) concept R&R (Registry and Resolver)
ContainerBuilder builder = new ContainerBuilder();
//Register commerce class and it now doesn't have any interface association
builder.RegisterType <CommerceRepoDI_Interface.Commerce>();
//Register Notifier class and attach to INotifier
builder.RegisterType <CommerceRepoDI_Interface.Notifier>().As <CommerceRepoDI_Interface.Interfaces.INotifier>();
builder.RegisterType <CommerceRepoDI_Interface.BillingProcessor>().As <CommerceRepoDI_Interface.Interfaces.IBillingProcessor>();
builder.RegisterType <CommerceRepoDI_Interface.CustomerProcessor>().As <CommerceRepoDI_Interface.Interfaces.ICustomerProcessor>();
container = builder.Build();
Product product1 = new Product("Dell");
Order order1 = new Order("Subash", "12345", "GWP", product1);
CommerceRepoDI_Interface.Commerce commerce1 = container.Resolve <CommerceRepoDI_Interface.Commerce>();
commerce1.ProcessOrder(order1);
//CommerceRepoDI_Interface.BillingProcessor billingProcessor1 = container.Resolve<CommerceRepoDI_Interface.BillingProcessor(order1.CreditCard, order1.CustomerName);
//CommerceRepoDI_Interface.CustomerProcessor customerProcessor1 = new CommerceRepoDI_Interface.CustomerProcessor(order1.CustomerName, product1);
//CommerceRepoDI_Interface.Notifier notifier1 = new CommerceRepoDI_Interface.Notifier(order1);
//CommerceRepoDI_Interface.Commerce commerceDI1 = new CommerceRepoDI_Interface.Commerce(billingProcessor1, customerProcessor1, notifier1);
//commerceDI.ProcessOrder();
}
public Commerce(BillingProcessor billingProcessor, CustomerProcessor customerProcessor, Notifier notifier)
{
this.billingProcessor = billingProcessor;
this.customerProcessor = customerProcessor;
this.notifier = notifier;
}
