Play Framework 2.0はアプリケーションの実装をPluginで拡張できる仕組みが用意されてる。 デフォで適用されるPluginは↓(play.api.Application.scalaより) /** * The plugins list used by this application. * * Plugin classes must extend play.api.Plugin and are automatically discovered * by searching for all play.plugins files in the classpath. * * A play.plugins file contains a list of plugin classes to be loaded, and sorted by priority: * * {{{ * 10