Foundation Framework Specialized Services
In this chapter, you will explore several Foundation Framework classes that provide specialized system services. These classes implement functionality to support event-driven programming via notifications, object persistence via archiving and serialization, and distributed programming with distributed objects.
The Foundation Framework includes a collection of APIs—the notifications support classes—that provide a powerful mechanism for event-driven programming. A notification encapsulates information about an event. It can be sent to one or more observing objects in response to an event that occurs within a program. The notifications architecture follows a broadcast model; ...