c# - 如何修改代码以使其遵守 Demeter 法则

Question

public class BigPerformance  
{  
    public decimal Value { get; set; }
}  

public class Performance  
{  
    public BigPerformance BigPerf { get; set; }
}  

public class Category    
{  
    public Performance Perf { get; set; }     
}

如果我调用:

Category cat = new Category();  
cat.Perf.BigPerf.Value = 1.0;  

我假设这会破坏 Law of Demeter / Principle of Least Knowledge ?
如果是这样，如果我有大量内部类属性，我该如何补救？

Answer 1

我最喜欢 Martin Fowler 的名言之一:

I'd prefer it to be called the Occasionally Useful Suggestion of Demeter

http://haacked.com/archive/2009/07/14/law-of-demeter-dot-counting.aspx