[...]... Introducing J2EE So far we have kept discussions on a purely abstract level, staying away from Java specific references In this section, you'll see how these abstract concepts correspond to what Java in general, and Enterprise Java in particular, deliver 8 Chapter 1: Defining the Enterprise A brief history of Enterprise Java The Java environment has not always catered to the enterprise market When Java was... packaged together to form what Sun calls editions of Java Note The home of Java is located at http:/ /java. sun.com/ Here you can find all the information you need about APIs, download examples, and get links to exter−nal sites Three editions of the Java core class libraries exist: Micro, Standard, and Enterprise These editions can be summarized as follows: • Micro (J2ME): This is a heavily restricted version... development — compiler, documentation, and core class libraries for the J2SE environment Tip You can find the homepage for the J2EE environment at http:/ /java. sun.com/j2ee/ 14 Chapter 1: Defining the Enterprise The next thing you need will be an implementation of the J2EE specification A sample environment is provided on Sun's Web site in the J2EE area If you are just kicking the tires, then this should be... capabilities the J2EE specification introduces to the Java programming environment • How to set up your own programming environment to start programming with J2EE 17 Chapter 2: Introducing Enterprise Applications Overview To complement Chapter 1, we will now take an extended look at the types of applications you will find in an enterprise setting Specifically for the newcomer to enterprise programming,... system that works The airline reservation system is a good example of how a J2EE application would have to work within an existing system, as there is no hope of making any changes to the core application J2EE would just be another veneer over the core functionality 21 Chapter 2: Introducing Enterprise Applications Table 2 2: Java technologies used in the aircraft reservation system API CORBA JTAPI JTA... in the data source Table 1 2: APIs that provide abstracted data−storage capabilities 10 Chapter 1: Defining the Enterprise API JDBC Description Java DataBase Connectivity, an abstract representation of SQL interactions with a database Enables you to create queries and to interact with the results in a Java oriented manner rather than forcing you to use raw text processing JNDI Java Naming and Directory... process feel "right." For almost every task in the enterprise level there is a Java API to make it quick and simple to perform Introducing Enterprise Applications There's an old cliché, "Ask 10 lawyers a question, and you will get 11 different answers." That about sums up how people define an "enterprise" application Probably the best way to define an enterprise application is to show you a number of... examples exist where Java is being used in the telco industry — in wireless networking for pagers and phones, for example The WAP market in particular is quite heavy on the use of Java based technologies, and the latest mobile phones are including Java capabilities, using the J2ME specification to run code directly on the phone 24 Chapter 2: Introducing Enterprise Applications Example 2: Monthly electronic... of the core J2SE 1. 4 specification Architecture and APIs for integrating J2EE applications with existing enterprise applications like ERP and CRM systems (for example, SAP R/3) Not just for the enterprise application All of the APIs presented in the previous sections can also be used as standard extensions to the normal JDK Although the focus of this book is on the use of J2EE in the enterprise application,... into the J2EE toolkit for application developers Navigating J2EE From the preceding simple introduction you can see that J2EE has a lot of different capabilities It is a very large toolkit for enterprise application developers and rivals the size of the core Java specification in size and spread of coverage The J2EE APIs can be separated into the same categories as the building blocks of an enterprise . alt="" Java 2 Enterprise Edition Bible Justin Couch and Daniel H. Steinberg Published by Hungry Minds, Inc. 909 Third Avenue New York, NY 10 022 http://www.hungryminds.com/ Copyright © 20 02. Systems Glossary Index Preface Welcome to Java 2 Enterprise Edition Bible. This book, which is a follow−up to Java 2 Bible, is for readers who wish to know more about the enterprise market. Enterprise programming. H. Steinberg Table of Contents Java 2 Enterprise Edition Bible Preface Part I Getting Started Chapter 1 - Defining the Enterprise Chapter 2 - Introducing Enterprise Applications Part II Delivering