最简单的方法就是在工厂模式中把代理类的建立封装起来。

The simplest approach is to encapsulate the creation of the proxy class within the Factory pattern.

youdao

对于这个示例来说，这个存储器是由一个简单且短暂的散列表实现的，并由一个生成实现类的工厂提供(清单3和清单4)。

For this example, this store is implemented with a simple, ephemeral hash table and is provided with a factory for generating the implementation class (Listings 3 and 4).

youdao

工厂类本身用于获得Transformer的实例(在下一小节中讨论)，并执行简单配置。

The factory class itself is used to get an instance of Transformer (discussed in the next subsection) and to perform simple configuration.

youdao