Session Dependency Injection: Vitally Important or Completely Irrelevant? Jim Weirich, Consultant, Compuware Track: Ruby Date: Thursday, August 4th, 2005 Time: 4:30pm - 5:15pm Location: E143-144 The Dependency Injection Pattern (also known as Inversion of Control) is a technique to reduce the amount of coupling in a program. Since reduced coupling is a noble goal of software develpers everywhere, dependency injection is an important technique to know. The Java community has seen numerous frameworks built around dependency injection and inversion of control (e.g. Hivemind, Spring, Pico Containers). But programs written in a dynamically typed language already fairly decoupled compared to programs written in stiffly typed langauges. Is dependency injection still important in a language like Ruby, or is it yet another technique from the Java world that has no place in the dynamic world of Ruby programming? We will look at basics of dependency injection and develop a simple dependency injection framework in Ruby. We will compare the framework to other decoupling techniques. Download presentation file

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