On MovieTome: Why you didn't see Shatner in TREK
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Advising objects to separate concerns is an extremely powerful pattern. Spring-like approaches to AOP are fantastic choices if few instances of the advised class need to be created. However, many domain objects do not fall in this category. AspectJ is a full-featured AOP implementation that is designed to advise both singletons and domain objects. However, AspectJ is not a trivial technology to bring into a development environment, so knowing alternatives is a good thing. For advising domain objects, this paper explored object pooling, class extension, and using the Decorator pattern, and there are undoubtedly others. Depending on the scenario, each approach enables a separation of concerns that object-oriented programming and aspect-oriented programming advocate.

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Format:HTML
Date:Jan 2007

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