June 2018
Intermediate to advanced
596 pages
12h 39m
English
Content preview from Java EE 8 Development with Eclipse - Third Edition
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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 ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.