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khtan (68) [Avatar] Offline
#1
Hi,

I am using the MEAP final version of the book.

I am interested in the footnote 17, the tip on section 1.5 Summary, page 24 that
"DI must be pervasive. You can't easily retrofit loose coupling onto an existing code base",
attributed to Michael Feathers' Working Effectively with Legacy Code.

I have Michael Feathers' book; there is no mention of DI or Dependency Injection that I could find. What specific places in the book would footnote 17 be referring to?

I have an existing code base that needs to be loosened, so to speak. Hence, any information on the dangers and pitfalls like footnote 17 will help me steer out of trouble.

Thanks,
mark.seemann (383) [Avatar] Offline
#2
Re: Footnote 17 : Exact attribution needed
The footnote doesn't refer to any specific place in WEwLC - that entire book is about introducing loose coupling into a legacy code base. Feathers doesn't use the term DI, but he talks a lot about Seams.

Remember that DI isn't a goal in itself, but a means toward loose coupling. This is also what WEwLC is all about.