{"id":14417,"date":"2021-09-19T20:51:54","date_gmt":"2021-09-19T11:51:54","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=14417"},"modified":"2023-05-27T18:34:25","modified_gmt":"2023-05-27T09:34:25","slug":"%e3%80%90ddd%e3%80%91%e3%80%8c%e3%83%95%e3%82%a1%e3%82%af%e3%83%88%e3%83%aa%e3%80%8d%e3%82%aa%e3%83%96%e3%82%b8%e3%82%a7%e3%82%af%e3%83%88%e3%81%a8%e3%81%af%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=14417","title":{"rendered":"\u3010DDD\u3011\u300c\u30d5\u30a1\u30af\u30c8\u30ea\u300d\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u306f\uff1f"},"content":{"rendered":"

\u30d5\u30a1\u30af\u30c8\u30ea\u3068\u306f\uff1f<\/h2>\n

\u4f5c\u308b\u77e5\u8b58\u306b\u7279\u5316\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8<\/p>\n

\u4e00\u822c\u7684\u306a\u958b\u767a\u3067\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u751f\u6210\u306f\u8907\u96d1\u306a\u624b\u9806\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002\u305d\u3046\u3057\u305f\u624b\u9806\u3092\u72ec\u7acb\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u3057\u3066\u5207\u308a\u51fa\u3057\u307e\u3059\u3002<\/p>\n

DDD\u306b\u304a\u3051\u308b\u30d5\u30a1\u30af\u30c8\u30ea\u3067\u306f\u3001\u300c\u30e6\u30d3\u30ad\u30bf\u30b9\u8a00\u8a9e\u3092\u7528\u3044\u3066\u96c6\u7d04\u3092\u30b7\u30f3\u30d7\u30eb\u306b\u751f\u6210\u3059\u308b\u300d\u3068\u3044\u3046\u610f\u5473\u5408\u3044\u304c\u5f37\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n

DDD\u306e\u30d5\u30a1\u30af\u30c8\u30ea\u306e\u30b7\u30ca\u30ea\u30aa<\/h2>\n

\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u6574\u5408\u6027\u306e\u53d6\u308c\u305f\u96c6\u7d04\u3092\u751f\u6210\u3057\u307e\u3059\u3002<\/p>\n

    \n
  1. \u7279\u5b9a\u306e\u96c6\u7d04\u306b\u3066\u3001\u5225\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff08\u4e3b\u306b\u96c6\u7d04\u3092\u751f\u6210\uff09<\/li>\n
  2. \u30b5\u30fc\u30d3\u30b9\u306b\u3066\u3001\u5225\u306e\u300c\u5883\u754c\u3065\u3051\u3089\u308c\u305f\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u300d\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u30ed\u30fc\u30ab\u30eb\u306e\u300c\u5883\u754c\u3065\u3051\u3089\u308c\u3066\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u300d\u306e\u578b\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5909\u63db\u3057\u3066\u751f\u6210<\/li>\n<\/ol>\n

    \u7528\u9014<\/h2>\n

    \u63a1\u756a\u51e6\u7406<\/h3>\n

    \u4f8b\u3048\u3070\u3001\u30e6\u30fc\u30b6\u30fcID\u306e\u63a1\u756a\u51e6\u7406\u306fDB\u306e\u63a1\u756a\u30c6\u30fc\u30d6\u30eb\u306a\u3069\u3092\u898b\u306b\u884c\u3063\u3066\u63a1\u756a\u3059\u308b\u304b\u3001\u30b7\u30fc\u30b1\u30f3\u30b9\u3092\u4f7f\u3063\u305f\u308a\u3057\u3066\u63a1\u756a\u3057\u307e\u3059\u3002\u305d\u3046\u3044\u3063\u305f\u5927\u305d\u308c\u305f\u4f4e\u30ec\u30d9\u30eb\u51e6\u7406\u306f\u30a8\u30f3\u30c6\u30a3\u30c6\u30a3\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u8a18\u8ff0\u3059\u308b\u306e\u306fDDD\u306e\u89b3\u70b9\u3067\u306f\u9593\u9055\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

    \u306a\u306e\u3067\u3001User\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3059\u308b\u969b\u306f\u3001User\u30af\u30e9\u30b9\u3092new\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u4e8b\u524d\u306bUserFactory\u3092\u901a\u3058\u3066\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3059\u308b\u3088\u3046\u306b\u5b9f\u88c5\u3057\u307e\u3059\u3002<\/p>\n

    \u5358\u7d14\u306b\u751f\u6210\u65b9\u6cd5\u304c\u8907\u96d1\u306a\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u69cb\u7bc9\u3059\u308b\u51e6\u7406\u3092\u307e\u3068\u3081\u308b\u305f\u3081\u306b\u4f7f\u7528<\/h3>\n

    \u521d\u671f\u5316\u306f\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306e\u5f79\u5272\u3067\u3059\u304c\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u306f\u5358\u7d14\u3067\u3042\u308b\u65b9\u304c\u671b\u307e\u3057\u3044\u3067\u3059\u3002<\/p>\n

    \u76ee\u5b89\u3068\u3057\u3066\u306f\u3001\u30b3\u30f3\u30b9\u30c8\u30e9\u30af\u30bf\u5185\u3067\u4ed6\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3059\u308b\u30b3\u30fc\u30c9\u3092\u5b9f\u884c\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u304f\u306a\u3063\u305f\u5834\u5408<\/strong><\/span>\u306f\u30d5\u30a1\u30af\u30c8\u30ea\u5316\u3057\u305f\u65b9\u304c\u826f\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n

    SOLID\u306e\u4e00\u3064\u306e\u30aa\u30fc\u30d7\u30f3\u30af\u30ed\u30fc\u30ba\u30c9\u3092\u5b88\u308b\u305f\u3081\u306b\u4f7f\u7528<\/h3>\n

    SOLID\u539f\u5247\u306e\u30aa\u30fc\u30d7\u30f3\u30af\u30ed\u30fc\u30ba\u30c9\u3092\u5b88\u308b\u305f\u3081\u306b\u4f7f\u7528\u3057\u307e\u3059\u3002\u3069\u306e\u30af\u30e9\u30b9\u3092\u751f\u6210\u3059\u308b\u304b\u306e\u6761\u4ef6\u5206\u5c90\u306e\u305f\u3081\u3060\u3051\u306b\u4f7f\u3063\u305f\u308a\u3059\u308b\u76ee\u7684\u3067\u30d5\u30a1\u30af\u30c8\u30ea\u30fc\u30af\u30e9\u30b9\u3092\u4f7f\u3063\u305f\u308a\u3057\u307e\u3059\u3002<\/p>\n

    class\u3092\u4f5c\u308b\u30dd\u30a4\u30f3\u30c8<\/h2>\n

    \u305f\u3060\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u751f\u6210\u3059\u308b\u3060\u3051\u3067\u3001\u72b6\u614b\u306f\u6301\u305f\u306a\u3044\u306e\u3067static\u306aclass\u3001static\u306a\u30e1\u30bd\u30c3\u30c9\u306e\u307f\u304c\u5b58\u5728\u3059\u308b\u5f62<\/strong><\/span>\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n

    \u30af\u30e9\u30b9<\/h3>\n

    xxxFactories\u3068\u3044\u3046\u540d\u524d\u306b\u3059\u308c\u3070\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n

    \u30e1\u30bd\u30c3\u30c9<\/h3>\n

    \u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u751f\u6210\u3068\u3044\u3046\u610f\u5473\u3067create\u30e1\u30bd\u30c3\u30c9\u3060\u3051\u8a18\u8ff0\u3059\u308c\u3070\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n

    \u30d5\u30a1\u30af\u30c8\u30ea\u306e\u5b58\u5728\u306b\u6c17\u3065\u304b\u305b\u308b\u306b\u306f\uff1f<\/h2>\n

    \u30d5\u30a1\u30af\u30c8\u30ea\u3092\u4f5c\u6210\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u95a2\u3057\u3066\u306f\u3001\u30d5\u30a1\u30af\u30c8\u30ea\u7d4c\u7531\u3067\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u751f\u6210\u3092\u671f\u5f85\u3057\u307e\u3059\u3002\u305f\u3060\u3001\u30af\u30e9\u30b9\u306e\u5185\u5bb9\u3060\u3051\u898b\u3066\u3082\u30d5\u30a1\u30af\u30c8\u30ea\u7d4c\u7531\u304b\u3069\u3046\u304b\u7b2c\u4e09\u8005\u306f\u5224\u65ad\u3067\u304d\u306a\u3044\u3067\u3059\u3002<\/p>\n

    \u751f\u6210\u5bfe\u8c61\u306e\u30af\u30e9\u30b9\u3068\u306f\u540c\u3058\u30d5\u30a9\u30eb\u30c0\uff08\u8a00\u8a9e\u306b\u3088\u3063\u3066\u306f\u30d1\u30c3\u30b1\u30fc\u30b8\uff09\u306b\u4fdd\u5b58\u3057\u3066\u304a\u304f\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u30d5\u30a1\u30af\u30c8\u30ea\u3068\u306f\uff1f \u4f5c\u308b\u77e5\u8b58\u306b\u7279\u5316\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8 \u4e00\u822c\u7684\u306a\u958b\u767a\u3067\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u751f\u6210\u306f\u8907\u96d1\u306a\u624b\u9806\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002\u305d\u3046\u3057\u305f\u624b\u9806\u3092\u72ec\u7acb\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u3057\u3066\u5207\u308a\u51fa\u3057\u307e\u3059\u3002 DDD\u306b\u304a\u3051\u308b\u30d5\u30a1\u30af\u30c8\u30ea\u3067\u306f\u3001\u300c\u30e6\u30d3\u30ad\u30bf\u30b9\u8a00\u8a9e\u3092\u7528 […]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[129],"tags":[],"_links":{"self":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/14417"}],"collection":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=14417"}],"version-history":[{"count":11,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/14417\/revisions"}],"predecessor-version":[{"id":20159,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/14417\/revisions\/20159"}],"wp:attachment":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=14417"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=14417"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=14417"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}