Interface-Based Programming
Short Description
As explained in Chapter 1, separation of interface from implementation is a core principle of component-oriented programming. When you separate interface from implementation, the client is coded against an abstraction of a service (the interface), not a particular implementation of it (the object). As a result, changing an implementation detail on the server side (or even switching to a different service provider altogether) doesn’t affect the client. This chapter starts by presenting .NET interfaces and describing what options are available to .NET developers when it comes to enforcing the separation of interface from implementation. It then addresses a set of practical issues involving the definition and use of interfaces, such as how to implement multiple interfaces and how to combine interfaces and class hierarchies. After a detailed look at generic interfaces, the chapter ends with a discussion of interface design and factoring guidelines.
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Programming in C++.NET
Short Description
C++ is an Object-Oriented Programming (OOP) language that is viewed by many as the best language for creating large-scale applications. The .NET Framework contains a virtual machine called Common Intermediate Language (CIL). Simply put, programs are compiled to produce CIL and the CIL is distributed to user to run on a virtual machine. C++, VB.NET, C# compilers are available from Microsoft for creating CIL. In DB-VA you can generate C# persistent source code and DLL file, so you can reference the DLL file and persistent library in Visual Studio .NET 2003 and develop the C++ application.
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