Book Image

JBoss Tools 3 Developers Guide

Book Image

JBoss Tools 3 Developers Guide

Overview of this book

JBoss Tools consist of the best Java frameworks and technologies placed together under the same "roof". Discovering JBoss Tools is like exploring a cave; at first everything seems unknown and complicated, but once you become familiar with the main features of the Tools, you will start to feel at home. This is the first book in the market on JBoss Tools, waiting to assist you to throw away all the tiny, dedicated tools you have used earlier, thus helping you to reduce the time you spend on developing a Java application. This book will explore the tools that will help you to build Hibernate, Seam, JSF, Struts, Web Services, jBPM, ESB, and so on and show you how to use them through screenshots, examples, and source code. JBoss Tools comes with a set of dedicated wizards, generators, editors, reverse engineering capabilities, configuration files, templates, syntax highlighting, and more for each of these technologies. Just choose the technologies, and JBoss Tools will glue them together in amazing Java web applications. This book will show you how to develop a set of Java projects using a variety of technologies and scenarios. Everything is described through JBoss Tools "eyes". After we settle the project (or scenario) that will be developed, we configure the proper environment for the current tool (the selected projects cover the main components of a web application, with regard to the backstage technology). We continue by exploring the tool to accomplish our tasks and develop the project's components. A cocktail of images, theoretical aspects, source code, and step-by-step examples will offer you a complete insight into every tool. At the end, we deploy and test the project. In addition, every chapter is rich with pure notions about the underlying technology, which will initiate into you or remind you of the basic aspects of it. It will also show you complete and functional applications, and get you familiar with the main aspects of every tool. By the end you will have enough information to successfully handle your own projects with JBoss Tools.
Table of Contents (16 chapters)
JBoss Tools 3 Developer's Guide
Credits
About the Author
About the Reviewers
Preface

Indicating the classes loading order


As we know, one of the main conditions that sustain the success of our Service is the presence of our two queues, ESBJMSApp_queue_not_gateway and ESBJMSApp_queue_gateway. If in the above section we have configured these queues, it is the perfect time now to indicate that these queues should be activated before the Service is loaded. This order is very important; the Service will not run properly if the queues are not present when it is loaded by the JBossESB Server. To accomplish this task we create an XML file named deployment.xml. The content of this file is pretty intuitive as you can see below (it just creates a dependency between the Service and JMS queues):

<jbossesb-deployment>
<depends>jboss.esb.esbjmsapp.destination:service=Queue,
name=ESBJMSApp_queue_not_gateway</depends>
<depends>jboss.esb.esbjmsapp.destination:service=Queue,
name=ESBJMSApp_queue_gateway</depends>
</jbossesb-deployment>

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