Session

The strengths and weaknesses of dependency injection

Concepts like the Dependency Inversion Principle, Inversion of Control containers and Dependency Injection libraries are often mixed up, but they are not the same. You shouldn’t use a DI library until you understand the problems your solving, nor is it always the best solution.

Since I’ve felt this pain many times myself, I’d like to use this session to create some clarity. First, I’ll demonstrate the reason why people typically use libraries like Unity and Autofac in their code bases. Then I’ll show you that those same people often use the Dependency Inversion Principle in the wrong way (and need to revert to mocking libraries to compensate). Then I’ll show you how to apply the principles properly by carefully designing the seams in your architecture. And finally, I’ll show you how an advanced library can connect the dots in a very elegant way.

Dennis Doomen

Hands-on architect in the .NET space with 26 years of experience on an everlasting quest for knowledge to build the right software the right way at the right time

The Hague, The Netherlands

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