From: Brian Candler <b.candler@...>
Date: 2010-02-16T17:43:37+09:00
Subject: Re: "Code must be Chunkable"

Caleb Clausen wrote:
> So, you're saying that this method, which I had optimized away:
> 
>   class Balance::TransferDestination < Role
>     def transfer(amount)
>       increaseBalance(amount)
>       puts "Tranfered to account #{__id__} $#{amount}"
>     end
>   end
> 
> should be able to contain arbitrary amounts of logic?

I think so. Otherwise you end up putting all the logic about 
*transferring* money inside the Balance object, which really should just 
be a dumb model which maintains a balance.

> I have the feeling this is one of those theoretical things that seems
> really complicated but once you understand it its actually quite
> simple.

I've not yet seen a clear (to me) exposition of what DCI actually 
*means* in practice. But then I could say the same about AOP.
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