类的配对层次结构 [英] an structure of paired hierarchies of classes

问题描述

有一种设计模式的结构是这样的。 B拥有对A的引用，并且还使用A进行一些工作，并且进一步地，层次结构B中的每个子类在层次结构A中的子类上继承以进行其工作。
它的代码看起来像以及可能值得阅读的 Lambda the Ultimate 。

is there a design pattern who's structure looks like this. B owns a reference to A, and also do some work using A. and further more, each sub class in hierarchy B relay on a sub class in hierarchy A to do its work. its code looks like https://codereview.stackexchange.com/questions/12412/two-related-hierarchies-of-classes

解决方案

This is a parallel inheritance hierarchy, and more commonly viewed as an anti-pattern.

There's some discussion of it on Ward's Wiki and at Lambda the Ultimate that might be worth reading.

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