6. Intermediate Pattern Compositions
This chapter establishes the first level of patterns composed directly from EDPs. We saw this process in Chapter 4, and here we flesh out several common, simple, but not-yet-elemental design patterns. As before, the Pattern Instance Notation (PIN) from Chapter 3 is used to illustrate the component portions that form these patterns. With the EDPs, the PIN notation was used to show the internal relationships using UML. From here on out, both UML and PINboxes appear in the PIN diagrams. A PINbox-only version is also included to illustrate the purely conceptual connections.
These patterns are extremely common, and developers keep coming back to them because they are both effective and because they also combine ...
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