February 7th, 2011, 08:00 AM
Swapping Cache Back-End at Runtime in PHP
While the pattern is not as popular as other well-known contenders, like Singleton, Factory and Composite, “Plug-in” is a powerful structural paradigm. It permits developers to create extensible software systems by means of a clever combination of Composition and interfaces. By "interfaces," I mean native ones, or defined in the form of abstract classes.
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