{"id":36184,"date":"2023-06-04T11:17:39","date_gmt":"2023-06-04T02:17:39","guid":{"rendered":"https:\/\/m9js.shop\/blog\/?p=36184"},"modified":"2023-06-04T11:17:39","modified_gmt":"2023-06-04T02:17:39","slug":"composite-pattern-in-java-design-patterns-unified-handling-of-composite-and-single-objects","status":"publish","type":"post","link":"https:\/\/m9js.shop\/blog\/development\/composite-pattern-in-java-design-patterns-unified-handling-of-composite-and-single-objects","title":{"rendered":"\uc790\ubc14 \ub514\uc790\uc778 \ud328\ud134 \uc911 \ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134: \ubcf5\ud569 \uac1d\uccb4\uc640 \ub2e8\uc77c \uac1d\uccb4\uc758 \ud1b5\uc77c\uc801\uc778 \ub2e4\ub8e8\uae30"},"content":{"rendered":"

\uc790\ubc14 \ub514\uc790\uc778 \ud328\ud134: \ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134 \uc18c\uac1c<\/h1>\n

\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c\uc5d0\uc11c, \uac00\ub3c5\uc131\uacfc \uc720\uc9c0\ubcf4\uc218\uc131\uc740 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574, \ucf54\ub4dc\ub97c \uad6c\uc131\ud558\ub294 \ubc29\ubc95\uacfc \ucf54\ub4dc\uc758 \uad6c\uc870\ub97c \uc124\uacc4\ud558\ub294 \ubc29\ubc95\uc774 \ub9e4\uc6b0 \uc911\uc694\ud569\ub2c8\ub2e4. \uc774\ub97c \ub2e4\ub8e8\ub294 \ud558\ub098\uc758 \ubc29\ubc95\uc774 \ub514\uc790\uc778 \ud328\ud134\uc785\ub2c8\ub2e4. \ub514\uc790\uc778 \ud328\ud134\uc740 \uc77c\uc815\ud55c \ud615\ud0dc\ub85c \ud504\ub85c\uadf8\ub7a8 \uad6c\uc870\ub97c \uc124\uacc4\ud558\ub294 \ubc29\ubc95\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4. \uc790\ubc14\ub294 \ub514\uc790\uc778 \ud328\ud134\uc744 \uad6c\ud604\ud558\uae30\uc5d0 \uc801\ud569\ud55c \uac1d\uccb4 \uc9c0\ud5a5 \uc5b8\uc5b4\uc785\ub2c8\ub2e4. \uc774\ubc88\uc5d0\ub294 \uadf8 \uc911\uc5d0\uc11c\ub3c4 \ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134\uc5d0 \ub300\ud574 \uc54c\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n

\ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134\uc740 \uac1d\uccb4\ub4e4\uc744 \ud2b8\ub9ac \uad6c\uc870\ub85c \uad6c\uc131\ud560 \ub54c \uc720\uc6a9\ud569\ub2c8\ub2e4. \uc774 \ud328\ud134\uc740 \uac1d\uccb4\ub4e4\uc744 \ubd80\ubd84-\uc804\uccb4 \uacc4\uce35 \uad6c\uc870\ub85c \uad6c\uc131\ud560 \uc218 \uc788\uc73c\uba70, \uc804\uccb4\uc640 \ubd80\ubd84\uc744 \ub3d9\uc77c\ud55c \ubc29\ubc95\uc73c\ub85c \ub2e4\ub8f0 \uc218 \uc788\ub3c4\ub85d \ud569\ub2c8\ub2e4. \uc774\ub294 \ubcf5\ud569 \uac1d\uccb4\uc640 \ub2e8\uc77c \uac1d\uccb4\ub97c \ud1b5\uc77c\uc801\uc73c\ub85c \ub2e4\ub8f0 \uc218 \uc788\uac8c \ud574\uc90d\ub2c8\ub2e4. <\/p>\n

\ubcf5\ud569 \uac1d\uccb4\uc640 \ub2e8\uc77c \uac1d\uccb4\uc758 \ud1b5\uc77c\uc801\uc778 \ub2e4\ub8e8\uae30<\/h1>\n

\ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134\uc744 \uc0ac\uc6a9\ud558\uba74 \ubcf5\ud569 \uac1d\uccb4\uc640 \ub2e8\uc77c \uac1d\uccb4\ub97c \ub3d9\uc77c\ud558\uac8c \ub2e4\ub8f0 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub97c \uc774\ud574\ud558\uae30 \uc704\ud574\uc11c\ub294 \uba3c\uc800 \ubcf5\ud569 \uac1d\uccb4\uc640 \ub2e8\uc77c \uac1d\uccb4\uc758 \ucc28\uc774\uc810\uc744 \uc774\ud574\ud574\uc57c \ud569\ub2c8\ub2e4. <\/p>\n

\ubcf5\ud569 \uac1d\uccb4\ub294 \uc5ec\ub7ec \uac1c\uc758 \ub2e8\uc77c \uac1d\uccb4\ub97c \uac00\uc9c0\uace0 \uc788\ub294 \uac1d\uccb4\uc785\ub2c8\ub2e4. \uc774\ub294 \ud2b8\ub9ac \uad6c\uc870\ub85c \ud45c\ud604\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ud68c\uc0ac \uc870\uc9c1\ub3c4\ub294 \ud2b8\ub9ac \uad6c\uc870\ub85c \ud45c\ud604\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud68c\uc0ac\ub294 \uc5ec\ub7ec \uac1c\uc758 \ubd80\uc11c\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\uace0, \uac01 \ubd80\uc11c\ub294 \uc5ec\ub7ec \uba85\uc758 \uc9c1\uc6d0\uc73c\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uad6c\uc870\uc5d0\uc11c \ud68c\uc0ac, \ubd80\uc11c, \uc9c1\uc6d0\uc740 \uac01\uac01 \ubcf5\ud569 \uac1d\uccb4\uc785\ub2c8\ub2e4.<\/p>\n

\ubc18\uba74\uc5d0, \ub2e8\uc77c \uac1d\uccb4\ub294 \ub354 \uc774\uc0c1 \ubd84\ud574\ub420 \uc218 \uc5c6\ub294 \uac1d\uccb4\uc785\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc9c1\uc6d0\uc758 \uc815\ubcf4\ub294 \ub354 \uc774\uc0c1 \ubd84\ud574\ud560 \uc218 \uc5c6\ub294 \ub2e8\uc77c \uac1d\uccb4\uc785\ub2c8\ub2e4.<\/p>\n

\ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134\uc744 \uc0ac\uc6a9\ud558\uba74 \uc774\ub7ec\ud55c \ubcf5\ud569 \uac1d\uccb4\uc640 \ub2e8\uc77c \uac1d\uccb4\ub97c \ub3d9\uc77c\ud558\uac8c \ub2e4\ub8f0 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub294 \ud2b8\ub9ac \uad6c\uc870\uc5d0\uc11c \ubd80\ubd84\uacfc \uc804\uccb4\ub97c \ub3d9\uc77c\ud55c \ubc29\ubc95\uc73c\ub85c \ub2e4\ub8f0 \uc218 \uc788\uac8c \ud569\ub2c8\ub2e4. \uc774\ub294 \ucf54\ub4dc\uc758 \uc720\uc9c0\ubcf4\uc218\uc131\uacfc \uac00\ub3c5\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/p>\n

\ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134 \uad6c\ud604 \ubc29\ubc95\uacfc \uc608\uc81c<\/h1>\n

\ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134\uc758 \uad6c\ud604\uc740 \ucd94\uc0c1 \ud074\ub798\uc2a4\ub098 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc774 \ucd94\uc0c1 \ud074\ub798\uc2a4\ub098 \uc778\ud130\ud398\uc774\uc2a4\ub294 \ubcf5\ud569 \uac1d\uccb4\uc640 \ub2e8\uc77c \uac1d\uccb4\ub97c \ubaa8\ub450 \uad6c\ud604\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n

\uadf8\ub9bc 1\uc740 \ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134\uc758 \ud074\ub798\uc2a4 \ub2e4\uc774\uc5b4\uadf8\ub7a8\uc785\ub2c8\ub2e4.<\/p>\n

\"\ucef4\ud3ec\uc9c0\ud2b8<\/p>\n

\uc774 \ub2e4\uc774\uc5b4\uadf8\ub7a8\uc5d0\uc11c, Component\ub294 \ubcf5\ud569 \uac1d\uccb4\uc640 \ub2e8\uc77c \uac1d\uccb4\ub97c \ubaa8\ub450 \uad6c\ud604\ud560 \uc218 \uc788\ub294 \ucd94\uc0c1 \ud074\ub798\uc2a4\uc785\ub2c8\ub2e4. Leaf\ub294 \ub2e8\uc77c \uac1d\uccb4\ub97c \uad6c\ud604\ud55c \ud074\ub798\uc2a4\uc785\ub2c8\ub2e4. Composite\ub294 \ubcf5\ud569 \uac1d\uccb4\ub97c \uad6c\ud604\ud55c \ud074\ub798\uc2a4\uc785\ub2c8\ub2e4. <\/p>\n

\uc608\ub97c \ub4e4\uc5b4, \ub2e4\uc74c\uc740 \ubbf8\ub514\uc5b4 \ud30c\uc77c\uc744 \ub098\ud0c0\ub0b4\ub294 \uc608\uc81c\uc785\ub2c8\ub2e4. \uc774 \uc608\uc81c\uc5d0\uc11c File\uc740 \ub2e8\uc77c \uac1d\uccb4\ub97c \ub098\ud0c0\ub0b4\ub294 \ud074\ub798\uc2a4\uc785\ub2c8\ub2e4. Directory\ub294 \ubcf5\ud569 \uac1d\uccb4\ub97c \ub098\ud0c0\ub0b4\ub294 \ud074\ub798\uc2a4\uc785\ub2c8\ub2e4. <\/p>\n

public abstract class File {\n    String name;\n    public abstract void display();\n}\n\npublic class VideoFile extends File {\n    public VideoFile(String name) {\n        this.name = name;\n    }\n    public void display() {\n        System.out.println(\"Video File: \" + name);\n    }\n}\n\npublic class AudioFile extends File {\n    public AudioFile(String name) {\n        this.name = name;\n    }\n    public void display() {\n        System.out.println(\"Audio File: \" + name);\n    }\n}\n\nimport java.util.ArrayList;\nimport java.util.List;\n\npublic class Directory extends File {\n    private List files = new ArrayList();\n\n    public Directory(String name) {\n        this.name = name;\n    }\n\n    public void add(File file) {\n        files.add(file);\n    }\n\n    public void remove(File file) {\n        files.remove(file);\n    }\n\n    public void display() {\n        System.out.println(\"Directory: \" + name);\n        for (File file : files) {\n            file.display();\n        }\n    }\n}<\/code><\/pre>\n
\uc704\uc758 \uc608\uc81c\uc5d0\uc11c, File\uc740 \ucd94\uc0c1 \ud074\ub798\uc2a4\ub85c\uc11c \ubaa8\ub4e0 \ud30c\uc77c \uac1d\uccb4\uc5d0 \uacf5\ud1b5\uc801\uc778 \ud2b9\uc9d5\uc744 \uc815\uc758\ud569\ub2c8\ub2e4. VideoFile\uacfc AudioFile\uc740 \ub2e8\uc77c \uac1d\uccb4\ub97c \ub098\ud0c0\ub0b4\ub294 \ud074\ub798\uc2a4\uc785\ub2c8\ub2e4. Directory\ub294 \ubcf5\ud569 \uac1d\uccb4\ub97c \ub098\ud0c0\ub0b4\ub294 \ud074\ub798\uc2a4\uc785\ub2c8\ub2e4. Directory\ub294 \uc5ec\ub7ec \uac1c\uc758 File \uac1d\uccb4\ub97c \ud3ec\ud568\ud558\uace0, \uc774\ub97c \ucd94\uac00\ud558\uac70\ub098 \uc81c\uac70\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n
\ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134\uc758 \uc7a5\ub2e8\uc810\uacfc \ud65c\uc6a9 \uc0ac\ub840<\/h1>\n
\ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134\uc758 \uc7a5\uc810\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n
    \n
  • \ubcf5\ud569 \uac1d\uccb4\uc640 \ub2e8\uc77c \uac1d\uccb4\ub97c \ub3d9\uc77c\ud558\uac8c \ub2e4\ub8f0 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n
  • \uac1d\uccb4\uc758 \uad6c\uc870\uac00 \ud2b8\ub9ac \uad6c\uc870\uc77c \ub54c \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/li>\n
  • \uac1d\uccb4\uc758 \ucd94\uac00\ub098 \uc0ad\uc81c\uac00 \uc6a9\uc774\ud569\ub2c8\ub2e4.<\/li>\n
  • \uc720\uc9c0\ubcf4\uc218\uc131\uacfc \uac00\ub3c5\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n
    \ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134\uc758 \ub2e8\uc810\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n
      \n
    • \uac1d\uccb4\uc758 \uad6c\uc870\uac00 \ubcf5\uc7a1\ud560 \ub54c \uad6c\ud604\uc774 \uc5b4\ub824\uc6b8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n
    • \ucd94\uc0c1 \ud074\ub798\uc2a4\ub098 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc0ac\uc6a9\ud558\ubbc0\ub85c \uc131\ub2a5\uc774 \uc57d\uac04 \ub5a8\uc5b4\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n
      \ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134\uc740 \ub300\ud45c\uc801\uc73c\ub85c \uadf8\ub798\ud53d \ud3b8\uc9d1\uae30\uc640 \uac19\uc740 \ud2b8\ub9ac \uad6c\uc870\ub97c \uac00\uc9c0\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0\uc11c \ud65c\uc6a9\ub429\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uadf8\ub9bc 2\ub294 \uadf8\ub798\ud53d \ud3b8\uc9d1\uae30\uc5d0\uc11c \uc0ac\uc6a9\ub420 \uc218 \uc788\ub294 \ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134\uc758 \uc608\uc81c\uc785\ub2c8\ub2e4.<\/p>\n
      \"\uadf8\ub798\ud53d<\/p>\n
      \uc774 \uc608\uc81c\uc5d0\uc11c, Graphic\uc740 \ucd94\uc0c1 \ud074\ub798\uc2a4\ub85c\uc11c \ubaa8\ub4e0 \uadf8\ub798\ud53d \uac1d\uccb4\uc5d0 \uacf5\ud1b5\uc801\uc778 \ud2b9\uc9d5\uc744 \uc815\uc758\ud569\ub2c8\ub2e4. Line, Rectangle, Text\ub294 \ub2e8\uc77c \uac1d\uccb4\ub97c \ub098\ud0c0\ub0b4\ub294 \ud074\ub798\uc2a4\uc785\ub2c8\ub2e4. Picture\ub294 \ubcf5\ud569 \uac1d\uccb4\ub97c \ub098\ud0c0\ub0b4\ub294 \ud074\ub798\uc2a4\uc785\ub2c8\ub2e4. Picture\ub294 \uc5ec\ub7ec \uac1c\uc758 Graphic \uac1d\uccb4\ub97c \ud3ec\ud568\ud558\uace0, \uc774\ub97c \ucd94\uac00\ud558\uac70\ub098 \uc81c\uac70\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n
      \uacb0\ub860<\/h1>\n
      \ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134\uc740 \uac1d\uccb4 \uc9c0\ud5a5 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c\uc5d0\uc11c \uc911\uc694\ud55c \uac1c\ub150 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4. \uc774 \ud328\ud134\uc740 \ubcf5\ud569 \uac1d\uccb4\uc640 \ub2e8\uc77c \uac1d\uccb4\ub97c \ub3d9\uc77c\ud558\uac8c \ub2e4\ub8f0 \uc218 \uc788\uac8c \ud574\uc8fc\uba70, \uac1d\uccb4\uc758 \uad6c\uc870\uac00 \ud2b8\ub9ac \uad6c\uc870\uc77c \ub54c \uc720\uc6a9\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ucf54\ub4dc\uc758 \uac00\ub3c5\uc131\uacfc \uc720\uc9c0\ubcf4\uc218\uc131\uc744 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134\uc740 \uadf8\ub798\ud53d \ud3b8\uc9d1\uae30\uc640 \uac19\uc740 \ud2b8\ub9ac \uad6c\uc870\ub97c \uac00\uc9c0\ub294 \uc18c\ud504\ud2b8\uc6e8\uc5b4\uc5d0\uc11c \ud65c\uc6a9\ub429\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ud328\ud134\uc744 \uc801\uc6a9\ud568\uc73c\ub85c\uc368, \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c\uc758 \ud6a8\uc728\uc131\uc744 \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"
      \uc790\ubc14 \ub514\uc790\uc778 \ud328\ud134 \uc911 \ucef4\ud3ec\uc9c0\ud2b8 \ud328\ud134: \ubcf5\ud569 \uac1d\uccb4\uc640 \ub2e8\uc77c \uac1d\uccb4\uc758 \ud1b5\uc77c\uc801\uc778 \ub2e4\ub8e8\uae30<\/p>\n","protected":false},"author":1,"featured_media":12882,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1957],"tags":[2675,2703,2105,2188,2584,5925,5979,3414],"class_list":["post-36184","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-development","tag-abstract","tag-composite","tag-java","tag-public","tag-system","tag-5925","tag-5979","tag-3414"],"acf":[],"_links":{"self":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/36184","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/comments?post=36184"}],"version-history":[{"count":1,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/36184\/revisions"}],"predecessor-version":[{"id":36347,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/36184\/revisions\/36347"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/media\/12882"}],"wp:attachment":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/media?parent=36184"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/categories?post=36184"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/tags?post=36184"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}