Chapter 14. Mediation Patterns
The next set of design patterns we will consider addresses mediation: the insertion of some simple intervening logic between a service consumer and a service provider. As the name implies, mediation activities modify, but do not fundamentally alter, the interactions between the two primary parties. Typical mediation activities include mapping one interface to another, transforming message content, routing requests, and enhancing message content.
Figure 14-1 shows the basic ActiveMatrix mediation architecture pattern that we will discuss. In this pattern the mediator is an ActiveMatrix composite, and it does not matter whether the service consumer and service provider reside within ActiveMatrix or outside the environment. ...
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