6.4. Other Patterns
So far in this chapter we've explored three common patterns, each of which was simple, powerful, and quite general. The replicated-worker pattern isn't geared to any particular problem domain, but is applicable to a large class of compute-intensive problems. Likewise, the command pattern can be used as the basis for a generic compute server, ready to take on any kind of problem we throw at it. The marketplace pattern is suitable for any domain in which there's a resource being bought and sold and parties are trying to find the best deal.
These three very general patterns are just a starting point to the application patterns you can devise. Other patterns tend to be more ad hoc or specialized than the ones we've already seen, ...
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