假设有5家汽车租赁公司, 当有人在网上租房时,
现在,如果有标准的方法可以发送XML来租车,那么这很容易,但让我们假设每个机构与不同的界面合作发送租车,每个界面以不同格式发送XML,因此当需要解析时,你无法使用一种标准方法,你需要能够覆盖处理多个界面的方法。举例来说,你可能有以下2种:
<Rental>
<FirstName>John</FirstName>
<LastName>Doe</LastName>
<Pickup time="13:00"/>
<Date>06/06/12</Date>
</Rental>
VS 甚高
<Rental>
<Name>
<First>John</First>
<Last>Doe</Last>
</Name>
<Pickup time="13:00" date="06/06/12"/>
</Rental>
如果每个汽车代理公司对处理租赁使用不同的接口,是否是覆盖一种方法5次的唯一办法,而且与每个新代理公司相比,它必须再次增长,还是对此采取更简单的办法?
使用 < a href=> "http://en.wikipedia.org/wiki/Decorator_pattern" rel=“nofollow” >Decorator 样板 。假设您正在做,您可以有一个提供租车数据的基本对象,然后用另一个正确格式化数据的对象(或装饰它)包起来(或装饰它)。您需要为每个不同的租车代理机构制作一个seperate 装饰器。
如果新机构唯一需要做的就是处理将数据分割成内部数据列报,然后用一切手段都非常成功的话。 为什么要花心思去研究那些似乎非常适合分开业务的明智之处呢?
我想,如果你真的想要的话,你可以以多种方式解决这个问题。我会玩弄一种想法, 来创建一个 Ai 或 an 来匹配最合适的输入。 但是任何解决方案都可能比执行“ 种族隔离- 客户数据” 的独特功能更昂贵。
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