Null Object

Null Object
Something for Nothing

The intent of a NULL OBJECT is to encapsulate the absence of an object by providing a
substitutable alternative that offers suitable default do nothing behavior. In short, a design
where "nothing will come of nothing" [Shakespeare1605].
posted on 2004-05-13 11:33  郭岩  阅读(928)  评论(0编辑  收藏  举报