Categories of Patterns
There are many patterns to keep track of. To help sort this out, the Gang of Four has grouped patterns into three general categories, as shown in Table 17-1.[1]
[1] Gamma, E., Helm, R., Johnson, R., Vlissides, J., Design Patterns: Elements of Reusable Object-Oriented Software, Reading, Mass.: Addison-Wesley, 1995, p. 10.
| Category | Purpose | Examples in This Book | Use For |
|---|---|---|---|
| Structural | Bring together existing objects | Handling interfaces | |
| Relating implementations to abstractions | ||
| Behavioral | Give a way to manifest flexible (varying) behavior |
| Containing variation |
| Creational | Create or instantiate objects ... |
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