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POCoupling to Dependency Injection Frameworks
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copied!<h2>Preface</h2> <p>I feel like there is a real possibility to shoot yourself in the foot when working with DI frameworks.<br> (My framework of choice is ninject so I'll be using that in my examples.)</p> <p>I'm going to step back for a second and look at the reason DI <strong>frameworks</strong> exists:<br> <em>To prevent having to do DI by hand</em></p> <p>Right so, in the spirit of Ninjects documentation, lets say we have a <code>Dojo</code> that creates <code>Samurai</code>s. These <code>Samurai</code>s are given an <code>IWeapon</code> when they are made.</p> <pre><code>class Samurai{ readonly IWeapon weapon; public Samurai(IWeapon weapon){ this.weapon = weapon; } } </code></pre> <p>Now it is my understanding that the <code>Dojo</code> would use <code>Kernel.Get<IWeapon>()</code> when it creates a <code>Samurai</code>. </p> <p><strong>Woah</strong><br> Didn't I just couple my Dojo to the Kernel?<br> Also... How is it supposed to get the Kernel: DI, a singleton, service location?</p> <p>I feel like we just swiftly defeated the purpose of DI because now I'm dependent on my DI framework. What happens if ninja's are defeated and ninject dies too?</p> <h2>Question</h2> <p>How do we use DI without coupling to a DI framework?</p> <h3>Postface</h3> <p>I'm sure this question has been asked before however I couldn't find anything. Please use the comments to post relevant questions so that we can pool the knowledge to figure out the best solution.</p>

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