The Different Types of Presentation Tiers

At first, you might think it’s a little strange to have a chapter on presentation topics in an EJB 2.0 book. But let’s face it, almost any EJB application must have some sort of external interaction with the system. This interaction might be in the form of a graphical user interface (GUI) hosted on a wireless device, an applet in a Web browser, or other EJBs in a different container. In any case, typically there is some type of remote client interface that you will need to design and build for your EJB applications.

Arguably, the most common interface being built today is one hosted by a Web server. Usually, the presentation is displayed in a browser and the output is normally HTML, although it’s becoming ...

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