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Enhydra XMLC™ Java™ Presentation Development by David H. Young

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The Enhydra Application Framework

We've journeyed from the deployment capabilities of Enhydra to the application environment itself. Let's review how the structure, organization, and collection of common services affect the design of Enhydra applications implemented with the Enhydra Application Framework.

The first perspective is the simple but powerful impact of a well organized source tree. The first question one might ask is, “If EAF is the implementation of a single servlet, then how do you consider Enhydra to support three-tier application architectures?” The answer is illustrated in Figure 5.10.

Figure 5.10. Source organization of presentation, business, and data tiers.

Yes, the fact is that you can write a two or monolithic one-tier application ...

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