Wicket in Action

Chapter 13. Multitiered architectures

In this chapter:

• The three-tiered service architecture
• Dependency injection and why it matters
• Creating a layered application using Wicket, Spring, and Hibernate

So far, we’ve looked at the individual nuts and bolts of Wicket through the use of simple examples. We’ve developed a virtual cheese store with functionality to browse through a catalogue, place orders, view discounts, and edit those discounts. The big thing missing from those examples is what you’d almost certainly have in real life: a database that stores the orders, discounts, and so on.

In this chapter, we’ll look at a common pattern of organizing source code into layers. We’ll use the Spring framework to manage one of these layers—the ...