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已拒绝

better class diagram for chain of responsibility pattern

Amir Mohammad 6 年 前 更新人: anonymous 6 年 前 3

hi everybody

i think the following class diagram would be a better representation of Chain of Responsibility pattern.Image 89

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Hi! Why do you think it's better?

Hi


You should replace:


    nextHandler.handle();

by


    if (isDefined(nextHandler))
        nextHandler.handle();
已拒绝

I'm closing this for now, because it seems that current illustration does contain simple "isDefined" and "canHandle" checks:


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