You're reading from Java EE 7 Development with NetBeans 8 Develop professional enterprise Java EE applications quickly and easily with this popular IDE

Product type Paperback

Published in Jan 2015

Publisher Packt

ISBN-13 9781783983520

Length 364 pages

Edition 3rd Edition

Languages

Java

Tools

Java EE

Concepts

Application Development

Author (1):

David R Heffelfinger

View More author details

Table of Contents (13) Chapters

Preface

1. Getting Started with NetBeans FREE CHAPTER

2. Developing Web Applications Using JavaServer Faces 2.2

3. JSF Component Libraries

4. Interacting with Databases through the Java Persistence API

5. Implementing the Business Tier with Session Beans

6. Contexts and Dependency Injection

7. Messaging with JMS and Message-driven Beans

8. Java API for JSON Processing

9. Java API for WebSocket

10. RESTful Web Services with JAX-RS

11. SOAP Web Services with JAX-WS

Index

Chapter 4. Interacting with Databases through the Java Persistence API

The Java Persistence API (JPA) is an object-relational mapping (ORM) API. ORM tools help us to automate the mapping of Java objects to relational database tables. Earlier versions of J2EE used Entity Beans as the standard approach for ORM. Entity Beans attempted to always keep the data in memory synchronized with the database data, a good idea in theory, however, in practice this feature resulted in poorly performing applications.

Several ORM APIs were developed to overcome the limitations of Entity Beans, such as Hibernate, iBatis, Cayenne, and TopLink, among others.

Java EE 5 deprecated Entity Beans in favor of JPA. JPA took ideas from several ORM tools and incorporated them in the standard. As we will see in this chapter, NetBeans has several features that make development with JPA a breeze.

The following topics will be covered in this chapter:

Creating our first JPA entity
Interacting with JPA entities using...

The rest of the chapter is locked

Tech Concepts

Programming languages

Tech Tools

Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.

Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.

50+ new titles added per month and exclusive early access to books as they are being written.

A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.

Unlock this book and the full library FREE for 7 days

Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of

Start free trial

Renews at £16.99/month. Cancel anytime

Authors (1)

David R Heffelfinger

David Heffelfinger is the Chief Technology Officer of Ensode Technology, LLC, a software consulting firm based in the greater Washington DC area. He has been architecting, designing, and developing software professionally since 1995, and has been using Java as his primary programming language since 1996. He has worked on many large-scale projects for several clients including the US Department of Homeland Security, Freddie Mac, Fannie Mae, and the US Department of Defense. He also has a Masters degree in Software Engineering from Southern Methodist University. David is Editor-in-Chief of Ensode.net (http://www.ensode.net), a website about Java, Linux, and other technology topics.

See other products by David R Heffelfinger