This book is for Java/J2EE Developers (& Architects).
This book has got simple as well as some medium-complexity code samples
As a java developer, this book will help you to identify integration aspects in your day to day code seperate from business code. Then it introduces many tools and frameworks which you can use to address integrating systems and services, using standard ways. The book assumes no previous knowledge on Integration/JBI/ESB, but will equip you with all the required skills and toolsets so that you understand Integration/JBI/ESB and also you can develop and code in Integration/JBI/ESB.
You don't require any "Workshop" or "Studio" or "Plugin" to try out the samples, nor you need a heavy RAM. You can try out the samples using Tomcat-Axis combination, using Ant build tool.
The book doesn't give you any new inventions, or any new patterns in integrations. These are already done by the great books below:
Enterprise Service Bus by David Chappel
Enterprise Integration Patterns by by Gregor Hohpe and Bobby Woolf
But the book guarantee that you understand many of the patterns and aspects described in above two books with the help of code and real world samples. You may want to look at the Table of Contents of this book to know more.