{"id":8205,"date":"2022-04-25T14:47:00","date_gmt":"2022-04-25T05:47:00","guid":{"rendered":"https:\/\/taki-lab.site\/bocci\/?p=8205"},"modified":"2022-04-23T14:54:49","modified_gmt":"2022-04-23T05:54:49","slug":"%e3%80%90%e3%83%87%e3%82%b6%e3%82%a4%e3%83%b3%e3%83%91%e3%82%bf%e3%83%bc%e3%83%b3%e3%80%91state%e3%83%91%e3%82%bf%e3%83%bc%e3%83%b3","status":"publish","type":"post","link":"https:\/\/taki-lab.site\/bocci\/?p=8205","title":{"rendered":"\u3010\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3011state\u30d1\u30bf\u30fc\u30f3"},"content":{"rendered":"\n

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package com.example.state;\r\n\r\nimport java.text.SimpleDateFormat;\r\n\r\npublic interface State {\r\n\tpublic final static SimpleDateFormat sdf = new SimpleDateFormat(\"yyyyMMdd\");\r\n\t\r\n\tpublic void setState(Context context);\r\n\tpublic void methodA();\r\n\tpublic void methodB();\r\n}\r\n<\/code><\/pre>\n\n\n\n
package com.example.state;\r\n\r\npublic class ConcreteState1 implements State {\r\n\tprivate final static State state = new ConcreteState1();\r\n\r\n\tprivate ConcreteState1() {\r\n\t\tsuper();\r\n\t}\r\n\t\r\n\tpublic static State getInstance() {\r\n\t\treturn state;\r\n\t}\r\n\t\r\n\tpublic void setState(Context context) {\r\n\t\tint value = context.getValue();\r\n\t\tif(value == 1) {\r\n\t\t\tcontext.changeState(ConcreteState2.getInstance());\r\n\t\t}\r\n\t}\r\n\r\n\tpublic void methodA() {\r\n\t\t\r\n\t}\r\n\r\n\tpublic void methodB() {\r\n\t\t\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n\n\n\n
package com.example.state;\r\n\r\npublic class ConcreteState2 implements State{\r\n\tprivate final static State state = new ConcreteState2();\r\n\t\r\n\tprivate ConcreteState2() {\r\n\t\tsuper();\r\n\t}\r\n\t\r\n\tpublic static State getInstance() {\r\n\t\treturn state;\r\n\t}\r\n\t\r\n\tpublic void setState(Context context) {\r\n\t\tint value = context.getValue();\r\n\t\tif(value == 2) {\r\n\t\t\tcontext.changeState(ConcreteState1.getInstance());\r\n\t\t}\r\n\t}\r\n\r\n\tpublic void methodA() {\r\n\t}\r\n\r\n\tpublic void methodB() {\r\n\t}\r\n}\r\n<\/code><\/pre>\n\n\n\n
package com.example.state;\r\n\r\npublic class Context {\r\n\tprivate int value;\r\n\tprivate State state = ConcreteState2.getInstance();\r\n\t\r\n\tpublic int getValue() {\r\n\t\treturn value;\r\n\t}\r\n\t\r\n\tpublic void setValue(int value) {\r\n\t\tthis.value = value;\r\n\t\tstate.setState(this);\r\n\t}\r\n\t\r\n\tpublic void changeState(State state) {\r\n\t\tthis.state = state;\r\n\t}\r\n\t\r\n\tpublic void methodA() {\r\n\t\tstate.methodA();\r\n\t}\r\n\t\r\n\tpublic void methodB() {\r\n\t\tstate.methodB();\r\n\t}\r\n}\r\n<\/code><\/pre>\n\n\n\n
package com.example.state;\r\n\r\npublic class Main {\r\n\tpublic static void main(String args[]) {\r\n\t\tContext context = new Context();\r\n\t\t\r\n\t\tcontext.setValue(1);\r\n\t\tcontext.methodA();\r\n\t\tcontext.methodB();\r\n\t\tcontext.setValue(2);\r\n\t\tcontext.methodA();\r\n\t\tcontext.methodB();\r\n\t}\r\n\r\n}\r\n<\/code><\/pre>\n\n\n\n
\u8a2d\u5b9a\u3057\u305f\u5024\u306b\u5fdc\u3058\u3066context\u306b\u4fdd\u6301\u3059\u308b\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u4fdd\u6301\u3057\u3001<\/p>\n\n\n\n
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<\/p>\n","protected":false},"excerpt":{"rendered":"
state\u30d1\u30bf\u30fc\u30f3\u306f\u72b6\u614b\u3092\u8868\u3059\u30af\u30e9\u30b9\u3092\u5c0e\u5165\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u72b6\u614b\u306b\u5fdc\u3058\u305f\u51e6\u7406\u3092\u5b9f\u884c\u3055\u305b\u308b\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002 \u901a\u5e38\u306fif\u6587\u7b49\u3067\u72b6\u614b\u3092\u8868\u3059\u5909\u6570\u3092\u8a55\u4fa1\u3057\u3066\u5224\u65ad\u3057\u307e\u3059\u304c\u3001\u3053\u308c\u3092\u30af\u30e9\u30b9\u306b\u7f6e\u304d\u63db\u3048\u3066\u51e6\u7406\u3059\u308b\u3082\u306e\u3067\u3059\u3002 \u8a2d\u5b9a\u3057\u305f\u5024\u306b\u5fdc\u3058\u3066 … \u7d9a\u304d\u3092\u8aad\u3080 \u3010\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3011state\u30d1\u30bf\u30fc\u30f3<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[225,3],"tags":[],"class_list":["post-8205","post","type-post","status-publish","format-standard","hentry","category-225","category-3"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t