{"id":1146,"date":"2012-12-04T21:03:47","date_gmt":"2012-12-05T02:03:47","guid":{"rendered":"http:\/\/www.ikriv.com\/blog\/?p=1146"},"modified":"2012-12-04T21:03:47","modified_gmt":"2012-12-05T02:03:47","slug":"object-factory-in-unity-2-x","status":"publish","type":"post","link":"https:\/\/ikriv.com\/blog\/?p=1146","title":{"rendered":"Object Factory in Unity 2.x"},"content":{"rendered":"<p>A couple of days ago I spent some time trying to find how to make Unity call a factory method when user requests an object. Then I forgot about it, and tried to Google it again. This stuff is surprisingly hard to find, especially given the fact that the method used in Unity 1.x (<code>StaticFactoryExtension<\/code>) was declared obsolete in favor of <code>InjectionFactory<\/code> which for whatever reason Unity authors consider &#8220;much easier&#8221; to use.<\/p>\n<p>Anyway, here&#8217;s a full working example, mostly for my future reference:<\/p>\n<p><code><\/p>\n<pre>using System;\nusing Microsoft.Practices.Unity;\n\nnamespace UnityObjectFactory\n{\n    class Program\n    {\n        static void Main(string[] args)\n        {\n            var container = new UnityContainer();\n            var factory = container.Resolve&lt;OrderFactory&gt;();\n            container.RegisterType&lt;IOrder&gt;(\n                new InjectionFactory(unused_container=>factory.CreateOrder()));\n\n            var order1 = container.Resolve&lt;IOrder&gt;();\n            Console.WriteLine(\"Fisrt order has number \" + order1.Number);\n\n            var order2 = container.Resolve&lt;IOrder&gt;();\n            Console.WriteLine(\"Second order has number \" + order2.Number);\n        }\n    }\n\n    interface IOrder\n    {\n        int Number { get; }\n    }\n\n    class Order : IOrder\n    {\n        public Order(int number) { Number = number; }\n        public int Number { get; private set; }\n    }\n\n    class OrderFactory\n    {\n        int _lastOrder;\n\n        public IOrder CreateOrder()\n        {\n            return new Order(++_lastOrder);\n        }\n    }\n}<\/pre>\n<p><\/code><br \/>\n<a style=\"display:none\" href=\"http:\/\/www.codeproject.com\/script\/Articles\/BlogFeedList.aspx?amid=1181663\" rel=\"tag\">CodeProject<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A couple of days ago I spent some time trying to find how to make Unity call a factory method when user requests an object. Then I forgot about it, <a href=\"https:\/\/ikriv.com\/blog\/?p=1146\" class=\"more-link\">[&hellip;]<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"Layout":"","footnotes":""},"categories":[3,16,5],"tags":[],"class_list":["entry","author-ikriv","post-1146","post","type-post","status-publish","format-standard","category-dotnet","category-demos","category-dev"],"_links":{"self":[{"href":"https:\/\/ikriv.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1146","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ikriv.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ikriv.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ikriv.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ikriv.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1146"}],"version-history":[{"count":0,"href":"https:\/\/ikriv.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1146\/revisions"}],"wp:attachment":[{"href":"https:\/\/ikriv.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1146"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ikriv.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1146"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ikriv.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1146"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}