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

By Justin Gehtland, Bruce A. Tate

Occasionally the best solution is the easiest. Many firm Java builders, acquainted with facing Java's spiraling complexity, have fallen into the behavior of selecting overly complex strategies to difficulties whilst less complicated concepts can be found. development server functions with "heavyweight" Java-based architectures, reminiscent of WebLogic, JBoss, and WebSphere, might be expensive and bulky. whilst you've reached the purpose the place you spend extra time writing code to aid your preferred framework than to resolve your genuine difficulties, it's time to imagine by way of simplicity.

In greater, quicker, Lighter Java, authors Bruce Tate and Justin Gehtland argue that the previous heavyweight architectures are unwieldy, complex, and give a contribution to sluggish and buggy software code. instead capability for development greater functions, the authors current "lightweight" open resource architectures: Hibernate—a patience framework that does its task 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 quite basic to profit and use, and position moderate calls for on process assets. higher, quicker, Lighter Java indicates you the way they could assist you create firm functions which are more straightforward to take care of, write, and debug, and are eventually a lot faster.

Written for intermediate to complicated Java builders, higher, swifter, Lighter Java, bargains clean ideas—often unorthodox—to assist you reconsider how you paintings, and methods and ideas you'll use to construct less complicated purposes. You'll discover ways to spend extra time on what's very important. whilst you're accomplished with this publication, you'll locate that your Java is best, quicker, and lighter than ever ahead of.

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Fortunately, you’ve got a third choice. You can build a very simple abstraction layer and allow the user to access the layer below yours. Think of them as convenient trap doors that let your users have access to the floors below. 14 | Chapter 1: The Inevitable Bloat This is the Title of the Book, eMatter Edition Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved. For example, you might want to build a utility to write a message. You might decide to provide facilities to write named serialized messages.

Now, count the number of design patterns that do nothing more than work around EJB features that stink. Or look to the seminal Gang of Four patterns; they are workarounds for problems with C++. For this reason alone, many influential consultants abhor design patterns. I’m not in that camp. But let the need for a design pattern emerge before you work it into an application. In other words, wait until you have a problem before you look for a solution. Your Safety Net Agile methods like XP have introduced new practices and philosophies into mainstream development that will change the way that you code forever.

Your Safety Net This is the Title of the Book, eMatter Edition Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved. | 29 Organizing tests After you’ve created a number of individual test cases, you may want to organize them in groups called test suites. A suite is a collection of tests, and they can be nested, as in Figure 2-5. These organizational techniques let you organize similar tests for strategy, behavior, or convenience. For example, you may not want to run all of your long-running performance tests with each build, so break them into separate suites.

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