XMPP the Definitive Guide
Getting the Most Out of This Book To get the most out of this book, we do not recommend that you read it cover to cover in one sitting (although you are welcome to do so!). Instead, first explore the sections that interest you or that you need to complete a particular task, perhaps after reading the introductory materials in Part I. You might also consider skimming over the details of each XML example on your first reading so that you get the general idea of each use case and protocol extension. The book is organized as follows: • Part I provides an overview of XMPP. The first chapter talks about XMPP at a high level and introduces you to some ways XMPP is being used to build real-time applications. The second chapter describes the basics of XMPP technologies, including architectural issues, addressing, and communication primitives. Read this section first if you’d like a relatively quick orientation to XMPP technologies. • Part II consists of a series of “developer stories” that illustrate how the tools in the XMPP toolkit can help you solve particular classes of problems. Each chapter in Part II introduces the XMPP concepts and services that you need in a given problem domain, describes how to use those tools, and provides examples showing how specific protocols come into play. Read the chapters here that interest you most. The order doesn’t matter, because we recap concepts where needed, and provide cross-references to more detailed treatments in other chapters. • Part III shows you how to put it all together by walking you through the thought processes and design decisions involved in building an XMPP-based application. Read this part after you have a feel for XMPP from the first two parts, and as you begin to dig into a large project that uses XMPP to construct a business application or real-time service. • Part IV consists of the appendixes, which help you understand the terminology of XMPP; introduce you to the wealth of XMPP servers, clients, and code libraries; and guide you through the large “stack” of XMPP protocol specifications so you can quickly find what you need. Use these appendixes as reference material on an ongoing basis, or as a quick index to the myriad of XMPP resources available on the Internet. xiv |
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