Better Faster Lighter Java [Electronic resources] نسخه متنی

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Better Faster Lighter Java [Electronic resources] - نسخه متنی

Justin Gehtland; Bruce A. Tate

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Organization of This Book

This book consists of 11 chapters and a Bibliography:

Chapter 1, The Inevitable Bloat

This chapter highlights the problems inherent in the large-scale enterprise Java frameworks that most programmers work with today. I will cover not only what's wrong with these bloated frameworks, but how they got that way. Finally, I will lay out the core principles we'll cover in the rest of the book.

Chapter 2, Keep It Simple

Many programmers fall into the same trap, believing that the more complicated their code, the better it must be. In fact, simplicity is the hallmark of a well-written application. This chapter defines the principle of simplicity, while drawing a distinction between simple and simplistic. I will also examine the tools and processes that help you achieve simplicity, like JUnit, Ant, and Agile development.

Chapter 3, Do One Thing, and Do It Well

Programmers need to resist the urge to solve huge problems all at once. Code that tries to do too much is often too entangled to be readable, much less maintainable. This chapter traces the path from being presented with a problem, to truly understanding the problem and its requirements, to finally solving the problem through multiple, simple, and targeted layers. It finally describes how to design your layers to avoid unnecessary coupling.

Chapter 4, Strive for Transparency

The programming community has tried for years to solve the problem of cross-cutting concerns. Generic services, like logging or database persistence, are necessary for most applications but have little to do with the actual problem domain. This chapter examines the methods for providing these kinds of services without unnecessarily affecting the code that solves your business problemthat is, how to solve them transparently. The two main methods we examine are reflection and code generation.

Chapter 5, You Are What You Eat

Every choice of technology or vendor you make is an embodiment of risk. When you choose to use Java, or log4j, or JBoss, or Struts, you are hitching yourself to their wagon. This chapter examines some of the reasons we choose certain technologies for our projects, some traditional choices that the marketplace has made (and why they may have been poor choices), and some strategies for making the right decisions for your project.

Chapter 6, Allow for Extension

You simply can not know every use to which your application will be put when you write it. Any application that is worth the effort put into it will have a life outside the imagination of its authors. Your application needs to allow for extension after its release to the world. This chapter examines the techniques for providing extension points, from interfaces and inheritance to configuration and the plug-in model.

Chapter 7, Hibernate

Hibernate is an open source persistence framework that provides transparent object-to-relational mapping. It is a straightforward and simple implementation that focuses on the job of persisting your domain objects so that they can in turn focus on solving the business problems at hand.

Chapter 8, Spring

Spring is an open source application service provider framework on which to deploy enterprise applications. It has a simple, lightweight container for your objects, and provides access to a variety of core J2EE services. However, it does so without all the heavy requirements of standard J2EE frameworks, and with no intrusion into the design of your domain objects.

Chapter 9, Simple Spider

Building on the principles this book espouses, this chapter examines the construction of a sample application, the Simple Spider. This application provides indexing and search capabilities for a web site by crawling its pages, indexing them with Lucene, and providing multiple interfaces for searching the results.

Chapter 10, Extending jPetStore

Having built the Simple Spider, we now examine how easy it is to extend an application (the jPetstore sample from Chapter 8) if you follow the principles in this book. We replace the existing jPetstore search feature with the Simple Spider, then replace the persistence layer with Hibernate.

Chapter 11, Where Do We Go from Here?

Finally, this chapter looks ahead to what is coming on the horizon, new trends and technologies that are here or just around the corner, and how the ideas in this book are part of a changing landscape in enterprise Java development.

Bibliography

Contains a listing of resources and references.

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