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Java EE 8 Development with Eclipse. - Third Edition

You're reading from Java EE 8 Development with Eclipse. - Third Edition

Product type Book

Published in Jun 2018

Publisher

ISBN-13 9781788833776

Pages 596 pages

Edition 3rd Edition

Languages

Concepts

Application Development

Table of Contents (20) Chapters

Title Page

Copyright and Credits

Dedication

Packt Upsell

1. Introducing JEE and Eclipse

2. Creating a Simple JEE Web Application

3. Source Control Management in Eclipse

4. Creating JEE Database Applications

5. Unit Testing

6. Debugging the JEE Application

7. Creating JEE Applications with EJB

8. Creating Web Applications with Spring MVC

9. Creating Web Services

10. Asynchronous Programming with JMS

11. Java CPU Profiling and Memory Tracking

12. Microservices

13. Deploying JEE Applications in the Cloud

14. Securing JEE Applications

1. Other Books You May Enjoy

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Index

Creating a Course Management application using EJB

Let's now create the Course Management application that we created in Chapter 4, Creating JEE Database Applications, this time using EJBs. In Chapter 4, Creating JEE Database Applications, we created service classes (which were POJOs) for writing the business logic. We will replace them with EJBs. We will start by creating Eclipse projects for EJBs.

Creating EJB projects in Eclipse

EJBs are packaged in a JAR file. Web applications are packaged in a Web Application aRchive (WAR). If EJBs are to be accessed remotely, then the client needs to have access to business interfaces. Therefore, EJB business interfaces and shared objects are packaged in a separate JAR, called EJB client JAR. Furthermore, if EJBs and web applications are to be deployed as one single application, then they need to be packaged in an EAR.

So, in most cases the application with EJBs is not a single project, but four different projects:

EJB project that creates EJB JAR
EJB client...

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