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This chapter has applied the concepts from Chapter 1 to implement about a third of the framework discussed in Chapter 2. At this point, the framework provides enough functionality for a business developer to build object-oriented systems that support useful concepts such as the following:

Chapters 4 and 5 will finish the business framework. Chapter 4 will focus on implementing the data portal concept and supporting object persistence. Then Chapter 5 will wrap up by implementing a variety of functionality to support a business developer in building an application using mobile objects.

From Chapter 6 on, the focus will be on designing and building a simple business application that illustrates how the classes in the framework can be used to build applications based on mobile business objects.

As discussed in Chapter 4, the data portal implements a channel adapter pattern, allowing you to select between four technologies for communicating with the server-side data portal components:

It is also possible to create your own custom network channel by implementing DataPortalClient.IDataPortalProxy on the client, and Server.IDataPortalServer on the server, just as was done in Chapter 4 to create the four proxy/host combinations listed above.

In this chapter, you’ve seen how to configure an application server to host each of the three remote channels: remoting, Web Services, and Enterprise Services. And you’ve seen how to configure client applications to use those hosts.

Whether you use a remote data portal or not, the framework and concepts discussed in this book should enable you to create applications using object-oriented design concepts, while lever-aging the power of .NET. Your objects will support data binding in Windows Forms and Web Forms, along with support for encapsulation of validation and authorization logic in a clear and concise manner.

I’ve thoroughly enjoyed exploring these concepts with you, and wish you the best as you develop your software.

Code well, have fun!