{"id":860,"date":"2004-11-10T11:11:21","date_gmt":"2004-11-10T02:11:21","guid":{"rendered":"\/?p=860"},"modified":"2004-11-10T11:11:21","modified_gmt":"2004-11-10T02:11:21","slug":"design-patterns","status":"publish","type":"post","link":"https:\/\/www.hiro345.net\/blogs\/hiro345\/archives\/860.html","title":{"rendered":"Design Patterns"},"content":{"rendered":"

\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3068\u3044\u3046\u8a00\u8449\u306f\u3001Java House ML \u306e\u4e2d\u3067\u805e\u3044\u305f\u306e\u304c\u6700\u521d\u3060\u3063\u305f\u3002\u4f55\u3060\u308d\u3046\u3068\u601d\u3063\u3066\u3001\u66f8\u7c4d\u3092\u8cfc\u5165\u3057\u3066\u307f\u305f\u3068\u3053\u308d\u5185\u5bb9\u304c\u6fc3\u304f\u3066\u9a5a\u3044\u305f\u899a\u3048\u304c\u3042\u308b\u3002\u307e\u3060\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u826f\u3055\u3092\u5b8c\u5168\u306b\u306f\u7406\u89e3\u3057\u3066\u3044\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u307e\u3055\u306b\u76ee\u304b\u3089\u9c57\u306e\u5185\u5bb9\u304c\u3044\u304f\u3064\u3082\u3042\u3063\u305f\u3002\u3082\u3063\u3068\u9a5a\u3044\u305f\u306e\u306f\u3001\u300c\u305d\u3093\u306a\u306e\u5f53\u305f\u308a\u524d\u300d\u3068\u3044\u3046\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u30a8\u30ad\u30b9\u30d1\u30fc\u30c8\u9054\u304c\u305f\u304f\u3055\u3093\u3044\u308b\u3068\u3044\u3046\u3053\u3068\u3060\u3063\u305f\u3002
\n
\nGoF\u306e\u672c\u3092\u3042\u3089\u305f\u3081\u3066\u958b\u3044\u3066\u307f\u308b\u3068\u3001\u8457\u8005\u306e\u5e8f\u6587\u306f1994\u5e748\u6708\u306b\u66f8\u304b\u308c\u3066\u3044\u308b\u3002\u3082\u304610\u5e74\u8fd1\u304f\u3082\u524d\u306b\u306a\u308b\u3002\u65e5\u672c\u8a9e\u7248\u306e\u521d\u7248\u306f1995\u5e74\u3060\u3063\u305f\u3088\u3046\u3060\u3002\u81ea\u5206\u304c\u672c\u3092\u8cfc\u5165\u3057\u305f\u306e\u306f1997\u5e74\u306e\u3053\u3068\u306a\u306e\u3067\u3001\u539f\u7248\u304c\u51fa\u7248\u3055\u308c\u3066\u304b\u30893\u5e74\u3082\u7d4c\u3063\u3066\u304b\u3089\u77e5\u3063\u305f\u3053\u3068\u306b\u306a\u308b\u3002\u3068\u3053\u308d\u304c\u305d\u308c\u3067\u3082\u65e5\u672c\u3067\u306f\u307e\u3060\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3068\u3044\u3046\u306e\u306f\u77e5\u3089\u308c\u3066\u3044\u306a\u304f\u3066\u3001\u77e5\u4eba\u306b\u300c\u3053\u308c\u304b\u3089\u306f\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306f\u5fc5\u9808\u3060\u300d\u3068\u3044\u3046\u8a71\u3092\u3057\u3066\u3082\u300c\u306a\u306b\u305d\u308c?\u300d\u3068\u3044\u3046\u53cd\u5fdc\u304c\u591a\u304f\u3066\u3001\u4e16\u9593\u7684\u306b\u306f\u6709\u52b9\u6027\u3092\u306a\u304b\u306a\u304b\u4fe1\u3058\u3066\u3082\u3089\u3048\u306a\u304b\u3063\u305f\u3068\u3044\u3046\u5370\u8c61\u304c\u3042\u308b\u3002<\/p>\n

2000\u5e74\u306bObserver\u30d1\u30bf\u30fc\u30f3\u3092\u984c\u6750\u306b\u6559\u6750\u3092\u4f5c\u6210\u3057\u305f\u304c\u3001\u5f53\u6642\u3067\u3082\u307e\u3060\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306f\u96d1\u8a8c\u8a18\u4e8b\u306a\u3069\u3067\u3068\u308a\u3042\u3052\u3089\u308c\u308b\u3053\u3068\u304c\u591a\u304f\u3001\u666e\u53ca\u6bb5\u968e\u3060\u3063\u305f\u3068\u3044\u3046\u8a18\u61b6\u304c\u3042\u308b\u3002\u3044\u307e\u3067\u306fJ2EE\u306a\u3069\u3067\u3082\u3044\u304f\u3064\u304b\u306e\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u304c\u63d0\u5531\u3055\u308c\u3066\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u8a2d\u8a08\u306b\u95a2\u3059\u308b\u30ce\u30a6\u30cf\u30a6\u306b\u5bfe\u3057\u3066\u306f\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3068\u3057\u3066\u5171\u6709\u3057\u3088\u3046\u3068\u3044\u3046\u6d41\u308c\u306b\u306a\u3063\u3066\u3044\u308b\u3002\u3053\u3093\u306a\u306b\u3082\u4e16\u9593\u306b\u53d7\u3051\u3044\u308c\u3089\u308c\u308b\u3068\u306fGoF\u3082\u601d\u3063\u3066\u3044\u306a\u304b\u3063\u305f\u306e\u3067\u306f\u306a\u3044\u3060\u308d\u3046\u304b\u3002<\/p>\n

\u6700\u8fd1\u306f\u3001TDD(Test Driven Development)\u95a2\u4fc2\u306e\u66f8\u7c4d\u3067\u3082\u3044\u304f\u3064\u304b\u306e\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u304c\u3068\u308a\u3042\u3052\u3089\u308c\u305f\u308a\u3001\u666e\u901a\u306b\u4f7f\u308f\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u304d\u305f\u3002\u5b66\u6821\u3067\u3082\u6388\u696d\u306e\u4e2d\u3067\u6559\u3048\u308b\u3053\u3068\u304c\u5897\u3048\u3066\u884c\u304f\u3060\u308d\u3046\u3002\u81ea\u5206\u3067\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3092\u4f7f\u3063\u3066\u30af\u30e9\u30b9\u8a2d\u8a08\u3092\u3059\u308b\u3053\u3068\u306f\u306a\u304f\u3066\u3082\u3001Java\u306eAPI\u3092\u4f7f\u3046\u3068\u304d\u306b\u3001\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3092\u77e5\u3063\u3066\u3044\u308b\u3068API\u306e\u8a2d\u8a08\u3092\u81ea\u7136\u3068\u7406\u89e3\u3067\u304d\u308b\u90e8\u5206\u304c\u591a\u3044\u306e\u3067\u3001\u305d\u3046\u3044\u3046\u89b3\u70b9\u304b\u3089\u3082\u304d\u3061\u3093\u3068\u6559\u3048\u3088\u3046\u3068\u601d\u3063\u3066\u3044\u308b\u4eba\u306f\u6559\u3048\u3066\u3044\u304f\u306e\u3060\u3068\u601d\u3046\u3002<\/p>\n

Iterator\u30d1\u30bf\u30fc\u30f3\u3092\u6559\u3048\u3066\u3044\u3066\u3001\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u306f\u3044\u3064\u3054\u308d\u304b\u3089\u8a00\u308f\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u306e\u304b\u306a\u3001\u3068\u601d\u3063\u305f\u306e\u3067\u3001\u3053\u3093\u306a\u30a8\u30f3\u30c8\u30ea\u30fc\u3092\u6295\u7a3f\u3057\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3068\u3044\u3046\u8a00\u8449\u306f\u3001Java House ML \u306e\u4e2d\u3067\u805e\u3044\u305f\u306e\u304c\u6700\u521d\u3060\u3063\u305f\u3002\u4f55\u3060\u308d\u3046\u3068\u601d\u3063\u3066\u3001\u66f8\u7c4d\u3092\u8cfc\u5165\u3057\u3066\u307f\u305f\u3068\u3053\u308d\u5185\u5bb9\u304c\u6fc3\u304f\u3066\u9a5a\u3044\u305f\u899a\u3048\u304c\u3042\u308b\u3002\u307e\u3060\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u6307\u5411\u306e\u826f\u3055\u3092\u5b8c\u5168\u306b\u306f\u7406\u89e3\u3057\u3066\u3044\u306a\u304b\u3063\u305f\u306e\u3067\u3001\u307e … \u7d9a\u304d\u3092\u8aad\u3080 →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-860","post","type-post","status-publish","format-standard","hentry","category-java"],"_links":{"self":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts\/860","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/comments?post=860"}],"version-history":[{"count":0,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/posts\/860\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/media?parent=860"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/categories?post=860"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.hiro345.net\/blogs\/hiro345\/wp-json\/wp\/v2\/tags?post=860"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}