{"id":4950,"date":"2021-01-21T06:57:59","date_gmt":"2021-01-20T21:57:59","guid":{"rendered":"https:\/\/taki-lab.site\/bocci\/?p=4950"},"modified":"2021-01-21T06:58:02","modified_gmt":"2021-01-20T21:58:02","slug":"%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%91proxy%e3%83%91%e3%82%bf%e3%83%bc%e3%83%b3","status":"publish","type":"post","link":"https:\/\/taki-lab.site\/bocci\/?p=4950","title":{"rendered":"\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3011Proxy\u30d1\u30bf\u30fc\u30f3"},"content":{"rendered":"\n

Proxy\u30d1\u30bf\u30fc\u30f3\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\u3002<\/p>\n\n\n\n

package org.example.proxy;\r\n\r\npublic interface Subject {\r\n    void request1();\r\n    void request2();\r\n}\r\n<\/code><\/pre>\n\n\n\n
package org.example.proxy;\r\n\r\npublic class RealSubject implements Subject {\r\n    @Override\r\n    public void request1() {\r\n        \/\/ \u6642\u9593\u306e\u304b\u304b\u308b\u51e6\u7406\r\n    }\r\n\r\n    @Override\r\n    public void request2() {\r\n        \/\/ \u6642\u9593\u306e\u304b\u304b\u308b\u51e6\u7406\r\n    }\r\n}\r\n<\/code><\/pre>\n\n\n\n
package org.example.proxy;\r\n\r\npublic class Proxy implements Subject{\r\n    private RealSubject real;\r\n\r\n    @Override\r\n    public synchronized void request1() {\r\n        realize();\r\n        real.request1();\r\n    }\r\n\r\n    @Override\r\n    public synchronized void request2() {\r\n        realize();\r\n        real.request2();\r\n    }\r\n\r\n    private void realize() {\r\n        if(real == null) {\r\n            real = new RealSubject();\r\n        }\r\n    }\r\n}\r\n<\/code><\/pre>\n\n\n\n
package org.example.proxy;\r\n\r\npublic class Main {\r\n    public static void main(String[] args) {\r\n        Subject subject = new Proxy();\r\n        subject.request1();\r\n        subject.request2();\r\n    }\r\n}\r\n<\/code><\/pre>\n\n\n\n
Proxy\u30d1\u30bf\u30fc\u30f3\u306f\u6642\u9593\u306e\u304b\u304b\u308b\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u969b\u3001\u30af\u30e9\u30b9\u3092\u4e00\u3064\u565b\u307e\u305b\u3066\u4e00\u90e8\u306e\u51e6\u7406\u3092\u4ee3\u884c(Proxy)\u3059\u308b\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002<\/p>\n\n\n\n
\u4e0a\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306fRealSubject\u304c\u6642\u9593\u306e\u304b\u304b\u308b\u51e6\u7406\u3092\u884c\u3044\u3001\u305d\u308c\u3092\u5b9f\u884c\u3059\u308b\u524d\u306bProxy\u304c\u5b9f\u884c\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n
Proxy\u3068ReadSubject\u306fSubject\u3068\u3044\u3046\u5171\u901a\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u6301\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u3053\u306e\u4f8b\u3067\u306f\u3001\u300c\u76f4\u63a5ReadSubject\u3092\u5b9f\u884c\u3057\u3066\u3082\u3044\u3044\u3093\u3058\u3083\u306d\uff1f\u300d\u3063\u3066\u601d\u3044\u307e\u3059\u304c\u3001<\/p>\n\n\n\n
\u5b9f\u969b\u306b\u5229\u7528\u3055\u308c\u308b\u30d1\u30bf\u30fc\u30f3\u3068\u3057\u3066\u306f\u3001ReadSubject\u3067\u306f\u6642\u9593\u306e\u304b\u304b\u308b\u51e6\u7406\u306e\u307f\u3092\u5b9f\u88c5\u3057\u3001\u305d\u308c\u4ee5\u5916\u306e\u51e6\u7406\u3092Proxy\u3067\u51e6\u7406\u3055\u305b\u308b\u3001\u3068\u3044\u3046\u306e\u304c\u4e00\u822c\u7684\u306e\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n
\"\"<\/a><\/figure>\n","protected":false},"excerpt":{"rendered":"
Proxy\u30d1\u30bf\u30fc\u30f3\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u3059\u3002 Proxy\u30d1\u30bf\u30fc\u30f3\u306f\u6642\u9593\u306e\u304b\u304b\u308b\u51e6\u7406\u3092\u5b9f\u884c\u3059\u308b\u969b\u3001\u30af\u30e9\u30b9\u3092\u4e00\u3064\u565b\u307e\u305b\u3066\u4e00\u90e8\u306e\u51e6\u7406\u3092\u4ee3\u884c(Proxy)\u3059\u308b\u30d1\u30bf\u30fc\u30f3\u3067\u3059\u3002 \u4e0a\u306e\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9\u3067\u306fRealSubject\u304c\u6642\u9593\u306e\u304b\u304b\u308b … \u7d9a\u304d\u3092\u8aad\u3080 \u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3011Proxy\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":"\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u3011Proxy\u30d1\u30bf\u30fc\u30f3\n#TechCommit\n","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":[226],"class_list":["post-4950","post","type-post","status-publish","format-standard","hentry","category-225","category-3","tag-226"],"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