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Re:visitor感觉有点麻烦，不如直接判断？ [Re:jameszhang]

zyzhang

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发贴: 155
积分: 30

于 2004-12-20 20:21

Actually, Visitor design pattern is very powerful if you can fit them in the right problem context. you can find loads of places(apache, middleware, xml utilities, and etc) using the idea behind visitor design pattern.

I used to using the combination of Composite and Visitor to tranverse tree-like data structure and adding the required handling methods in seperate visitor classes. It can help you gain the advantage of clean (distributing the responsibility), flexible and extensible design objectives.

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人气	标题	作者	字数	发贴时间
11975	visitor感觉有点麻烦，不如直接判断？	jameszhang	54	2004-12-17 16:50
9817	Re:visitor感觉有点麻烦，不如直接判断？	justin_here	28	2004-12-17 20:10
9821	Re:visitor感觉有点麻烦，不如直接判断？	emarket	232	2004-12-17 22:33
9825	Re:visitor感觉有点麻烦，不如直接判断？	jameszhang	62	2004-12-18 08:06
9724	Re:visitor感觉有点麻烦，不如直接判断？	emarket	76	2004-12-18 17:21
9753	Re:visitor感觉有点麻烦，不如直接判断？	floater	487	2004-12-19 02:45
9726	Re:visitor感觉有点麻烦，不如直接判断？	jameszhang	65	2004-12-18 22:31
10785	Re:visitor感觉有点麻烦，不如直接判断？	zyzhang	509	2004-12-20 20:21

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