Download Better, Faster, Lighter Java by Justin Gehtland, Bruce A. Tate PDF

By Justin Gehtland, Bruce A. Tate

Occasionally the best resolution is the easiest. Many firm Java builders, familiar with facing Java's spiraling complexity, have fallen into the behavior of selecting overly advanced strategies to difficulties whilst easier suggestions can be found. development server purposes with "heavyweight" Java-based architectures, reminiscent of WebLogic, JBoss, and WebSphere, should be high priced and bulky. whilst you've reached the purpose the place you spend extra time writing code to aid your selected framework than to resolve your genuine difficulties, it's time to imagine by way of simplicity.

In higher, speedier, Lighter Java, authors Bruce Tate and Justin Gehtland argue that the previous heavyweight architectures are unwieldy, advanced, and give a contribution to sluggish and buggy program code. as a substitute capability for development higher functions, the authors current "lightweight" open resource architectures: Hibernate—a patience framework that does its activity with a minimum API and will get out of how, and Spring—a box that's now not invasive, heavy or complex.

Hibernate and Spring are designed to be relatively basic to benefit and use, and position moderate calls for on method assets. higher, swifter, Lighter Java indicates you the way they could assist you create firm purposes which are more uncomplicated to take care of, write, and debug, and are eventually a lot faster.

Written for intermediate to complicated Java builders, larger, quicker, Lighter Java, bargains clean ideas—often unorthodox—to assist you reconsider how you paintings, and strategies and ideas you'll use to construct easier purposes. You'll learn how to spend extra time on what's very important. while you're accomplished with this ebook, you'll locate that your Java is best, swifter, and lighter than ever prior to.

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Then you can test your class with a simpler data source, like a collection. If you write your test cases first, you’ll get pretty immediate feedback when you try to couple things too tightly. You won’t be able to build the right set of tests. For the most part, that means separating concerns as clearly as possible. For example, testing could drive the following design decisions: • In order to effectively test your order processing in a messaging architecture without using your full messaging infrastructure, your test cases would motivate you to separate your message processing from the message parsing and delivery.

All rights reserved. general problems. Each design pattern that you learn in context is worth any 20 that you read about. Whether you’re a kayaker running a Class V rapid, a physicist working on a space station, or a programmer dealing on a massive problem, your approach should be the same. Understand the problem You must understand a problem to solve it well. Effective programming goes beyond your code editor and debugger. You need to be able to accurately gather requirements, and control the scope and expectations of your customers.

You’ll see an example of a persistent domain model, an enterprise web application, a sophisticated service, and extension using these core concepts. My plan is simple. I’ll show you a handful of basic principles. I’ll show you how to succeed with the same ideas to build better, faster, lighter Java. If you tend to value a book by the weight of its pages, go find another one. If you’d rather weigh the ideas, then welcome aboard. It all begins and ends with simplicity. And that’s the subject of Chapter 2.

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