From: Robert Klemme <shortcutter@...>
Date: 2007-06-14T19:15:04+09:00
Subject: Re: Disadvantages of Dependency Inversion?

On 14.06.2007 12:04, Trans wrote:
> On Jun 8, 10:47 pm, Daniel DeLorme <dan...@dan42.com> wrote:
>> I think the best article on the topic is this by Martin Fowler:http://www.martinfowler.com/articles/injection.html
>> He does a good job of analyzing the pros and cons. And basically I agree
>> with him; DI is useless unless you write 3rd party packages.
> 
> For a long time I felt DI was very interesting and potentially very
> useful, but I never could quite get mileage out of it. I think I
> finally figured out why: DI is just a contrived codification of an
> essentially simple top-level construction layer. Here's what I mean.
> Reading Jim's http://onestepback.org/articles/depinj/, he gives this
> basic example:

Isn't DI just about callbacks?  If that was the case DI is all over Ruby 
code - every block is an anonymous callback function.

Kind regards

	robert