根据不同参数调用不同方法该怎么设计? - V2EX
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sandman511
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根据不同参数调用不同方法该怎么设计?

  •  
  •   sandman511 2020-05-15 17:20:45 +08:00 1649 次点击
    这是一个创建于 2045 天前的主题,其中的信息可能已经有所发展或是发生改变。
     public String selectById(Integer id,Boolean b) { return result = b ? mapper.selectXXXById(id) : mapper.selectYYYById(id); } 

    请教下各位 遇到上面这种需求 该怎么设计代码呢

    6 条回复    2020-05-15 21:23:27 +08:00
    mlxy123123
        1
    mlxy123123  
       2020-05-15 18:06:31 +08:00
    图上的写法有什么问题吗?

    要么就用继承+方法重载的方式做
    Brucepac
        2
    Brucepac  
       2020-05-15 18:26:05 +08:00 via iPhone
    策略模式
    zxCoder
        3
    zxCoder  
       2020-05-15 20:57:49 +08:00
    if if if if 就完事了
    itechify
        4
    itechify  
    PRO
       2020-05-15 21:20:24 +08:00 via Android
    就当前来说,两个分支,if 就行了,后期参数多了,分支多了,考虑重构成工厂+策略模式。先不要急着封装,否则只会增加代码复杂
    wangyanrui
        5
    wangyanrui  
       2020-05-15 21:23:10 +08:00 via Android
    就两个分支,先这么写着,提早优化啥万恶之源
    wangyanrui
        6
    wangyanrui  
       2020-05-15 21:23:27 +08:00 via Android
    就两个分支,先这么写着,提早优化是万恶之源
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