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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

Chapter 7. Creating JEE Applications with EJB

In the last chapter, we learned some techniques to debug JEE applications from Eclipse. In this chapter, we will shift our focus back to JEE application development and learn how to create and use Enterprise JavaBeans (EJB). If you recall the architecture of database applications in Chapter 4, Creating JEE Database Applications, we had JSP or a JSF page calling a JSP bean or a managed bean. The beans then called DAOs to execute the data access code. This separated code for the user interface, the business logic, and the database nicely. This would work for small or medium applications, but may prove to be a bottleneck in large enterprise applications; the application may not scale very well. If processing of the business logic is time consuming then it would make more sense to distribute it on different servers for better scalability and resilience. If code for the user interface, the business logic, and the data access is all on the same machine...

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