Chapter 1. Introduction to the EJB 3 Architecture
In this chapter we will give an overview of EJB 3 and how it fits into the Java EE multi-layer framework. We will also look at installing and getting started with the GlassFish container. The topics covered are:
An overview of Java EE
The EJB 3 Architecture
Getting Started with GlassFish
Introduction to the Java EE Architecture
Modern enterprise applications have their responsibilities divided over a number of layers. A common architecture is the 3-layer model consisting of presentation, business, and database layers. The presentation layer is responsible for presenting a user interface and handling interactions with the end user. The business layer is responsible for executing business logic. The database ...
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