{"id":927,"date":"2017-02-10T16:35:13","date_gmt":"2017-02-10T07:35:13","guid":{"rendered":"http:\/\/okamurax.com\/?p=927"},"modified":"2020-05-05T01:03:23","modified_gmt":"2020-05-04T16:03:23","slug":"c-memento","status":"publish","type":"post","link":"https:\/\/appbay.org\/?p=927","title":{"rendered":"C# Memento"},"content":{"rendered":"<pre class=\"lang:c# decode:true  \">namespace ConsoleApplication2\r\n{\r\n    class Program\r\n    {\r\n        static void Main(string[] args)\r\n        {\r\n            new caretaker();\r\n            System.Console.ReadKey();\r\n        }\r\n    }\r\n\r\n    \/* Memento \r\n    \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u30b9\u30ca\u30c3\u30d7\u30b7\u30e7\u30c3\u30c8 *\/\r\n\r\n    public class Memento\/\/\u8a18\u5ff5\u54c1\r\n    {\r\n        public int param = 1;\r\n        public Memento(int p)\r\n        {\r\n            this.param = p;\r\n        }\r\n    }\r\n\r\n    public class caretaker\r\n    {\r\n        System.Collections.Generic.Dictionary&lt;string, Memento&gt; dic = new System.Collections.Generic.Dictionary&lt;string, Memento&gt;();\r\n\r\n        public caretaker()\r\n        {\r\n            Originator o = new Originator();\r\n\r\n            o.CalcSum(1,2);\r\n            dic.Add(\"first snapshot\", o.CreateMemento());\r\n\r\n            o.CalcSum(3, 2);\r\n            dic.Add(\"second snapshot\", o.CreateMemento());\r\n\r\n            o.SetMemento(dic[\"first snapshot\"]);\r\n\r\n            System.Console.WriteLine(o.param.ToString());\r\n\r\n        }\r\n    }\r\n\r\n    public class Originator\/\/\u4f5c\u6210\u8005\r\n    {\r\n        public int param;\r\n\r\n        public void CalcSum(int x,int y)\r\n        {\r\n            this.param = x + y;\r\n        }\r\n\r\n        public Memento CreateMemento()\r\n        {\r\n            return new Memento(param);\r\n        }\r\n        public void SetMemento(Memento m)\r\n        {\r\n            this.param = m.param;\r\n        }\r\n    }\r\n}\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>namespace ConsoleApplication2 { class Program { static void Main(string[] args) { new caretaker(); System.Cons &hellip; <\/p>\n<p class=\"link-more\"><a href=\"https:\/\/appbay.org\/?p=927\" class=\"more-link\"><span class=\"screen-reader-text\">&#8220;C# Memento&#8221; \u306e<\/span>\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[9,144],"class_list":["post-927","post","type-post","status-publish","format-standard","hentry","category-1","tag-c-net","tag-144"],"_links":{"self":[{"href":"https:\/\/appbay.org\/index.php?rest_route=\/wp\/v2\/posts\/927","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/appbay.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/appbay.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/appbay.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/appbay.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=927"}],"version-history":[{"count":1,"href":"https:\/\/appbay.org\/index.php?rest_route=\/wp\/v2\/posts\/927\/revisions"}],"predecessor-version":[{"id":928,"href":"https:\/\/appbay.org\/index.php?rest_route=\/wp\/v2\/posts\/927\/revisions\/928"}],"wp:attachment":[{"href":"https:\/\/appbay.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=927"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/appbay.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=927"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/appbay.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}