Dependency Injection Review

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Dependency Injection ReviewThe information contained in this book is great. The author is very knowledgeable and enthusiastic. Don't let me dissuade you from buying this book, the information it contains is very valuable.
I have read several Manning books before and I didn't feel this book met their standards prior to publication. Another 10% of effort and this book would have gone from good to excellent. This is the reason I only give it 3 stars.
I have some issues with this book. First I don't feel that it has been edited tightly enough. Occasionally the informal language used by the author seemed awkward and I found a couple of grammatical errors.
I take issue that not all of the code snip-its are taken from working examples. (Download the sourcecode for corroborating evidence of this.) This is a bad idea given the size and amount of code snip-its. It is hard for the author to ensure there are no mistakes. There is at least one irritating one on pg. 88 in setting up the creation of a DelivererFactory.
And this is the only book that I can recall re-reading a section because I didn't quite follow it the first time through. I think this had to do with how sections of code changed as an idea evolved and how it was presented. It would have been very helpful to have an upfront sentence or three indicating where we are going when ideas evolve. For example, section 3.3.3 could have benefited from this. I found this particularly irritating at times.
Sometimes illustrations were used pointlessly, such as 7.4. Maybe I didn't see the humor in it. This is a dry subject after all.
I didn't like the flow of which dependency injection frameworks were chosen in any given section. Most of the time Guice would be presented first, but that wasn't always the case. There needs to be more consistency in the order of presentation! And for some reason not a peep was mentioned about Guice in section 7.5. Maybe Guice offers nothing in customizing the lifecycle of an object?
I also felt that chapter 4 needed help. I kept asking myself who this chapter benefited. The concepts of good object oriented design and testability take quite a bit of exposition. Books solely dedicated to this area have been written. And yet because of how dependency injection was presented along with it, I felt it muddied the waters in some ways. The information is good, it just needs more editing to make it more focused.
Chapter 11 is pretty useless until Google releases sitebricks. The whole chapter is a small web demonstration that happens to use this library. Who writes an extended example in a book which has a dependency on something not yet released to the public?? Again, Manning should not have let this problem go to press. Yes, the author also wrote sitebricks.. so I can imagine the conversation. "... it will be released a week after we start printing..."
I'd still recommend buying this book since I'm not aware of a better one on the subject of dependency injection.Dependency Injection Overview

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