下一个最高级抽象是BeanFactory接口，它是工厂设计模式的实现，允许通过名称创建和检索对象。

The next-highest layer of abstraction is the BeanFactory interface, an implementation of the Factory design pattern that enables objects to be created and retrieved by name.

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此时，您可能很想更进一步并用成熟的抽象工厂对象替换工厂方法，如ErichGamma等人在设计模式中详细描述的那样。

At this point, you may be tempted to go one step further and replace the factory method with a full-fledged abstract factory object, as detailed in Design Patterns by Erich Gamma, et al.

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在协议管理器的设计上，使用了前摄器模式和抽象工厂，增加整个系统的扩展性并降低了模块之间的耦合度。

For the design of protocol manager, we use the Proactor Pattern and abstract factory to increase the scalability of the system and reduce the coupling degree between modules.

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在协议管理器的设计上，使用了前摄器模式和抽象工厂，增加整个系统的扩展性并降低了模块之间的耦合度。

For the design of protocol manager, we use the Proactor Pattern and abstract factory to increase the scalability of the system and reduce the coupling degree between modules.

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