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    <p>The short answer is <a href="http://codebetter.com/jeremymiller/2009/01/08/choosing-the-constructor-function-in-structuremap-without-attributes/" rel="nofollow">this post by the creator of Structuremap</a>.</p> <p>The long answer is regarding the structure you have in that piece of code. In my view, a command is by definition a "class" that does something to an "entity", i.e it modifies the class somehow. Think CreateNewProductCommand.</p> <p>Here you are using commands for querying, if I'm not mistaken. You also have a bit of a separation of concern issue floating around here. The command posted defines what to do and how to do it, which is to much and you get that kind of Service location you're using in </p> <pre><code>private Repository&lt;IProduct, Product&gt; GetProductRepository() { return ObjectFactory.GetInstance&lt;Repository&lt;IProduct, Product&gt;&gt;(); } </code></pre> <p>The way I'd structure commands is to use CreateProductCommand as a data contract, i.e it only contains data such as product information. Then you have a CreateProductCommandHandler which implements <code>IHandles&lt;CreateProductCommand&gt;</code> with a single method <code>Handle</code> or <code>Execute</code>. That way you get better separation of concern and testability.</p> <p>As for the querying part, just use your repositores directly in your controller/presenter, alternatively use the <a href="http://ayende.com/blog/3955/repository-is-the-new-singleton" rel="nofollow">Query Object pattern</a> </p>
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    1. POStructuremap constructor overloading
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    1. USHenning
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    1. COHere are some links to get you going on commands/handlers: http://lostechies.com/jimmybogard/2010/01/07/advanced-structuremap-custom-registration-conventions-for-partially-closed-types/ http://lostechies.com/derickbailey/2008/11/20/ptom-command-and-conquer-your-ui-coupling-problems/
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    2. COI am sorry but this is not the answer I was looking for. I know the post you mention by Jeremy Miller. But as I mentioned, this only relates to specifying a specific constructor beforehand. As to your comments on the command pattern, thank you, I will look into that. However, you should realize that the command class (maybe the naming is not appropriate) is just a wrapper of a select method to fetch a product from a repository. I also have insert, delete and update commands. The intention of this setup is that I can thus add them to a list of commands which is passed to a transaction manager.
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