{"id":36222,"date":"2023-06-04T11:16:43","date_gmt":"2023-06-04T02:16:43","guid":{"rendered":"https:\/\/m9js.shop\/blog\/?p=36222"},"modified":"2023-06-04T11:16:43","modified_gmt":"2023-06-04T02:16:43","slug":"interface-separation-with-java-design-patterns-applying-the-interface-separation-principle","status":"publish","type":"post","link":"https:\/\/m9js.shop\/blog\/development\/interface-separation-with-java-design-patterns-applying-the-interface-separation-principle","title":{"rendered":"\uc790\ubc14 \ub514\uc790\uc778 \ud328\ud134\uc73c\ub85c \uc778\ud130\ud398\uc774\uc2a4 \ubd84\ub9ac: \uc778\ud130\ud398\uc774\uc2a4 \ubd84\ub9ac \uc6d0\uce59\uc758 \uc801\uc6a9"},"content":{"rendered":"

\uc790\ubc14 \ub514\uc790\uc778 \ud328\ud134\uc73c\ub85c \uc778\ud130\ud398\uc774\uc2a4 \ubd84\ub9ac: \uc778\ud130\ud398\uc774\uc2a4 \ubd84\ub9ac \uc6d0\uce59\uc758 \uc801\uc6a9<\/h1>\n
$\"Java$ <\/p>\n
\uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c\uc5d0\uc11c, \ub514\uc790\uc778 \ud328\ud134\uc740 \uc5b8\uc5b4\ub098 \ud504\ub808\uc784\uc6cc\ud06c\uc5d0 \uc0c1\uad00\uc5c6\uc774 \uacf5\ud1b5\ub41c \ubb38\uc81c\ub97c \ud574\uacb0\ud558\uae30 \uc704\ud55c \ud6a8\uacfc\uc801\uc778 \uc194\ub8e8\uc158\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4. \ub514\uc790\uc778 \ud328\ud134\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uac1d\uccb4 \uc9c0\ud5a5 \ud504\ub85c\uadf8\ub798\ubc0d(OOP)\uc5d0\uc11c \uc0ac\uc6a9\ub418\uba70, \ucf54\ub4dc\uc758 \uc720\uc9c0 \ubcf4\uc218\uc131, \uc7ac\uc0ac\uc6a9\uc131, \uac00\ub3c5\uc131, \uc720\uc5f0\uc131 \ub4f1\uc744 \ud5a5\uc0c1\uc2dc\ud0b5\ub2c8\ub2e4. \uc774\ubc88 \uae00\uc5d0\uc11c\ub294 \uc790\ubc14 \ub514\uc790\uc778 \ud328\ud134\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc778\ud130\ud398\uc774\uc2a4 \ubd84\ub9ac \uc6d0\uce59(ISP)\uc744 \uc801\uc6a9\ud558\ub294 \ubc29\ubc95\uc5d0 \ub300\ud574 \uc0b4\ud3b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc790\ubc14 \ub514\uc790\uc778 \ud328\ud134 \uc18c\uac1c<\/h2>\n

\ub514\uc790\uc778 \ud328\ud134\uc740 \uc77c\ubc18\uc801\uc73c\ub85c \uc138 \uac00\uc9c0 \uc720\ud615\uc73c\ub85c \ubd84\ub958\ub429\ub2c8\ub2e4.<\/p>\n

\uc0dd\uc131 \ud328\ud134(Creational pattern): \uac1d\uccb4\uc758 \uc0dd\uc131\uacfc \uad00\ub828\ub41c \ud328\ud134\uc785\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc2f1\uae00\ud1a4 \ud328\ud134, \ud329\ud1a0\ub9ac \uba54\uc11c\ub4dc \ud328\ud134 \ub4f1\uc774 \uc774\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4.<\/li>\n
\uad6c\uc870 \ud328\ud134(Structural pattern): \uac1d\uccb4\uc640 \ud074\ub798\uc2a4\uc758 \uad6c\uc870\uc5d0 \uad00\ub828\ub41c \ud328\ud134\uc785\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc5b4\ub311\ud130 \ud328\ud134, \ube0c\ub9ac\uc9c0 \ud328\ud134 \ub4f1\uc774 \uc774\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4.<\/li>\n

\ud589\uc704 \ud328\ud134(Behavioral pattern): \uac1d\uccb4 \uac04\uc758 \uc0c1\ud638 \uc791\uc6a9\uacfc \uad00\ub828\ub41c \ud328\ud134\uc785\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc635\uc800\ubc84 \ud328\ud134, \ucee4\ub9e8\ub4dc \ud328\ud134 \ub4f1\uc774 \uc774\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n

\uc790\ubc14\ub294 \ub2e4\uc591\ud55c \ub514\uc790\uc778 \ud328\ud134\uc744 \uc9c0\uc6d0\ud558\uba70, \ub300\ud45c\uc801\uc778 \ub514\uc790\uc778 \ud328\ud134\uc73c\ub85c\ub294 \uc2f1\uae00\ud1a4 \ud328\ud134, \uc5b4\ub311\ud130 \ud328\ud134, \ud329\ud1a0\ub9ac \uba54\uc11c\ub4dc \ud328\ud134, \uc635\uc800\ubc84 \ud328\ud134, \ub370\ucf54\ub808\uc774\ud130 \ud328\ud134 \ub4f1\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc778\ud130\ud398\uc774\uc2a4 \ubd84\ub9ac \uc6d0\uce59\uc758 \uac1c\ub150\uacfc \uc801\uc6a9<\/h2>\n
\uc778\ud130\ud398\uc774\uc2a4 \ubd84\ub9ac \uc6d0\uce59\uc740 \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c \uc6d0\uce59 \uc911 \ud558\ub098\ub85c, \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \uc790\uc2e0\uc774 \uc0ac\uc6a9\ud558\uc9c0 \uc54a\ub294 \uba54\uc11c\ub4dc\uc5d0 \uc758\uc874\ud558\uc9c0 \uc54a\uc544\uc57c \ud55c\ub2e4\ub294 \uac83\uc785\ub2c8\ub2e4. ISP\ub294 SOLID \uc6d0\uce59 \uc911 \ud558\ub098\ub85c, \uac1d\uccb4 \uc9c0\ud5a5 \uc124\uacc4\uc758 \uc911\uc694\ud55c \uac1c\ub150 \uc911 \ud558\ub098\uc785\ub2c8\ub2e4.<\/p>\n
\uc608\ub97c \ub4e4\uc5b4, \ub808\uc2a4\ud1a0\ub791\uc5d0\uc11c \uc8fc\ubb38\uc744 \ubc1b\ub294 \uc6e8\uc774\ud130\ub294 \uc694\ub9ac\uc0ac\uac00 \ud544\uc694\ud55c \uae30\ub2a5(\uc694\ub9ac\ub97c \ub9cc\ub4dc\ub294 \uba54\uc11c\ub4dc)\uc744 \uad6c\ud604\ud560 \ud544\uc694\uac00 \uc5c6\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c, \uc774\ub7ec\ud55c \uae30\ub2a5\ub4e4\uc744 \ub530\ub85c \uad6c\ud604\ud558\uc5ec \uc778\ud130\ud398\uc774\uc2a4\ub85c \uc81c\uacf5\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4. \uc774\ub807\uac8c \ud558\uba74 \uc6e8\uc774\ud130\uac00 \ud544\uc694\ud55c \uba54\uc11c\ub4dc\ub9cc \uc0ac\uc6a9\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c \ucf54\ub4dc\uc758 \uc720\uc9c0 \ubcf4\uc218\uc131\uacfc \uac00\ub3c5\uc131\uc774 \ud5a5\uc0c1\ub429\ub2c8\ub2e4.<\/p>\n

\uc790\ubc14 \ub514\uc790\uc778 \ud328\ud134\uc73c\ub85c \uc778\ud130\ud398\uc774\uc2a4 \ubd84\ub9ac\ud558\ub294 \ubc29\ubc95<\/h2>\n

\uc790\ubc14 \ub514\uc790\uc778 \ud328\ud134\uc740 \uac1d\uccb4 \uc9c0\ud5a5 \ud504\ub85c\uadf8\ub798\ubc0d\uc5d0\uc11c \uc720\uc6a9\ud558\uac8c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \ub514\uc790\uc778 \ud328\ud134\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc778\ud130\ud398\uc774\uc2a4 \ubd84\ub9ac \uc6d0\uce59\uc744 \uc801\uc6a9\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc778\ud130\ud398\uc774\uc2a4 \ubd84\ub9ac\ub97c \uace0\ub824\ud55c \uac1d\uccb4 \ubaa8\ub378\ub9c1: \uac1d\uccb4 \ubaa8\ub378\ub9c1\uc5d0\uc11c ISP\ub97c \uace0\ub824\ud558\uc5ec \uc778\ud130\ud398\uc774\uc2a4\ub97c \ubd84\ub9ac\ud569\ub2c8\ub2e4.<\/li>\n
\ucd94\uc0c1 \ud074\ub798\uc2a4 \ub610\ub294 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc0ac\uc6a9\ud558\uc5ec ISP \uc801\uc6a9: \ucd94\uc0c1 \ud074\ub798\uc2a4\ub098 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc0ac\uc6a9\ud558\uc5ec ISP\ub97c \uc801\uc6a9\ud569\ub2c8\ub2e4.<\/li>\n

\ub514\uc790\uc778 \ud328\ud134 \uc801\uc6a9: ISP\ub97c \uace0\ub824\ud55c \ub514\uc790\uc778 \ud328\ud134\uc744 \uc801\uc6a9\ud569\ub2c8\ub2e4.<\/li>\n<\/ol>\n

ISP\ub97c \uace0\ub824\ud55c \uac1d\uccb4 \ubaa8\ub378\ub9c1\uc5d0\uc11c\ub294 \uc694\uad6c \uc0ac\ud56d\uc744 \ubd84\uc11d\ud558\uace0, \uac01 \uc694\uad6c \uc0ac\ud56d\uc5d0 \ud544\uc694\ud55c \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc2dd\ubcc4\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \uc778\ud130\ud398\uc774\uc2a4\ub294 \ud074\ub77c\uc774\uc5b8\ud2b8\uac00 \uc694\uad6c\ud558\ub294 \uae30\ub2a5\uc5d0 \ub530\ub77c \ubd84\ub9ac\ub429\ub2c8\ub2e4.<\/p>\n

\ucd94\uc0c1 \ud074\ub798\uc2a4\ub098 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc0ac\uc6a9\ud558\uc5ec ISP\ub97c \uc801\uc6a9\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. \uba3c\uc800, \uc778\ud130\ud398\uc774\uc2a4\ub098 \ucd94\uc0c1 \ud074\ub798\uc2a4\ub97c \ub9cc\ub4e4\uace0, \ud544\uc694\ud55c \uba54\uc11c\ub4dc\ub9cc\uc744 \ud3ec\ud568\ud569\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c, \uc774\ub7ec\ud55c \uc778\ud130\ud398\uc774\uc2a4\ub098 \ucd94\uc0c1 \ud074\ub798\uc2a4\ub97c \uc0c1\uc18d\ubc1b\uc544 \uad6c\ud604\ud558\ub294 \ud074\ub798\uc2a4\uc5d0\uc11c\ub294 \ud544\uc694\ud55c \uba54\uc11c\ub4dc\ub9cc\uc744 \uad6c\ud604\ud569\ub2c8\ub2e4. \uc774\ub807\uac8c \ud558\uba74 \ud074\ub77c\uc774\uc5b8\ud2b8\ub294 \ud544\uc694\ud55c \uba54\uc11c\ub4dc\ub9cc\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\ub514\uc790\uc778 \ud328\ud134\uc744 \uc0ac\uc6a9\ud558\uc5ec ISP\ub97c \uc801\uc6a9\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc591\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c, \uc774\ubc88 \uae00\uc5d0\uc11c\ub294 ISP\ub97c \uace0\ub824\ud55c \ub514\uc790\uc778 \ud328\ud134 \uc911 \ud558\ub098\uc778 \ub370\ucf54\ub808\uc774\ud130 \ud328\ud134\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc608\ub97c \ub4e4\uc5b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc778\ud130\ud398\uc774\uc2a4 \ubd84\ub9ac \uc6d0\uce59\uc744 \uc801\uc6a9\ud55c \uc790\ubc14 \ub514\uc790\uc778 \ud328\ud134 \uc608\uc2dc<\/h2>\n

\ub370\ucf54\ub808\uc774\ud130 \ud328\ud134\uc740 \uac1d\uccb4\uc5d0 \ub3d9\uc801\uc73c\ub85c \uc0c8\ub85c\uc6b4 \uae30\ub2a5\uc744 \ucd94\uac00\ud560 \uc218 \uc788\ub3c4\ub85d \ud558\ub294 \ud328\ud134\uc785\ub2c8\ub2e4. \ub370\ucf54\ub808\uc774\ud130 \ud328\ud134\uc744 \uc0ac\uc6a9\ud558\uc5ec ISP\ub97c \uc801\uc6a9\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n

\uba3c\uc800, ISP\ub97c \uace0\ub824\ud55c \uc778\ud130\ud398\uc774\uc2a4\ub97c \ub9cc\ub4ed\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc790\ub3d9\ucc28\uc5d0 \ud544\uc694\ud55c \uae30\ub2a5\uc744 \uc81c\uacf5\ud558\ub294 \uc778\ud130\ud398\uc774\uc2a4\ub97c \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

public interface CarFeatures {\n    void drive();\n    void stop();\n}<\/code><\/pre>\n\uadf8\ub7f0 \ub2e4\uc74c, \uc774 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc0c1\uc18d\ubc1b\uc544 \ud544\uc694\ud55c \uba54\uc11c\ub4dc\ub9cc\uc744 \ud3ec\ud568\ud558\ub294 \uc778\ud130\ud398\uc774\uc2a4\ub97c \ub9cc\ub4ed\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \uc790\ub3d9\ucc28\uc5d0 \ud544\uc694\ud55c \uc6b4\uc804 \ubcf4\uc870 \uae30\ub2a5\uc744 \uc81c\uacf5\ud558\ub294 \uc778\ud130\ud398\uc774\uc2a4\ub97c \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
public interface DriverAssist extends CarFeatures {\n    void park();\n    void navigate();\n}<\/code><\/pre>\n\uadf8 \ub2e4\uc74c, \ucd94\uc0c1 \ud074\ub798\uc2a4\ub098 \uc778\ud130\ud398\uc774\uc2a4\ub97c \uc0ac\uc6a9\ud558\uc5ec ISP\ub97c \uc801\uc6a9\ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4, \ucd94\uc0c1 \ud074\ub798\uc2a4\ub97c \uc0ac\uc6a9\ud558\uc5ec ISP\ub97c \uc801\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
public abstract class CarDecorator implements CarFeatures {\n    protected CarFeatures carFeatures;\n\n    public CarDecorator(CarFeatures carFeatures) {\n        this.carFeatures = carFeatures;\n    }\n}<\/code><\/pre>\n\ub9c8\uc9c0\ub9c9\uc73c\ub85c, \ub370\ucf54\ub808\uc774\ud130 \ud074\ub798\uc2a4\ub97c \ub9cc\ub4e4\uace0, \uc778\ud130\ud398\uc774\uc2a4\ub97c \uad6c\ud604\ud569\ub2c8\ub2e4. \uc774 \ud074\ub798\uc2a4\ub294 CarDecorator\ub97c \uc0c1\uc18d\ubc1b\uc544 \uad6c\ud604\ub429\ub2c8\ub2e4.<\/p>\n
public class NavigationDecorator extends CarDecorator implements DriverAssist {\n    public NavigationDecorator(CarFeatures carFeatures) {\n        super(carFeatures);\n    }\n\n    @Override\n    public void park() {\n        carFeatures.stop();\n    }\n\n    @Override\n    public void navigate() {\n        System.out.println(\"Navigation activated\");\n    }\n\n    @Override\n    public void drive() {\n        carFeatures.drive();\n    }\n\n    @Override\n    public void stop() {\n        carFeatures.stop();\n    }\n}<\/code><\/pre>\n\uc704\uc758 \uc608\uc81c\uc5d0\uc11c\ub294 NavigationDecorator \ud074\ub798\uc2a4\uac00 DriverAssist \uc778\ud130\ud398\uc774\uc2a4\ub97c \uad6c\ud604\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ud074\ub798\uc2a4\ub294 CarDecorator\ub97c \uc0c1\uc18d\ubc1b\uc544 \uad6c\ud604\ub418\uc5c8\uc73c\ubbc0\ub85c, CarFeatures \uc778\ud130\ud398\uc774\uc2a4\ub3c4 \uad6c\ud604\ud558\uace0 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub807\uac8c \ud558\uba74 NavigationDecorator \ud074\ub798\uc2a4\ub97c \uc0ac\uc6a9\ud558\ub294 \ud074\ub77c\uc774\uc5b8\ud2b8\ub294 \ud544\uc694\ud55c \uae30\ub2a5\ub9cc\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uc885\ud569\ud558\uba74, \uc790\ubc14 \ub514\uc790\uc778 \ud328\ud134\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc778\ud130\ud398\uc774\uc2a4 \ubd84\ub9ac \uc6d0\uce59\uc744 \uc801\uc6a9\ud558\ub294 \ubc29\ubc95\uc740 \ub2e4\uc591\ud569\ub2c8\ub2e4. ISP\ub97c \uace0\ub824\ud55c \ub514\uc790\uc778 \ud328\ud134\uc744 \uc801\uc6a9\ud558\uba74, \ucf54\ub4dc\uc758 \uc720\uc9c0 \ubcf4\uc218\uc131, \uc7ac\uc0ac\uc6a9\uc131, \uac00\ub3c5\uc131, \uc720\uc5f0\uc131 \ub4f1\uc744 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ub514\uc790\uc778 \ud328\ud134\uc740 \uac1d\uccb4 \uc9c0\ud5a5 \ud504\ub85c\uadf8\ub798\ubc0d\uc5d0\uc11c \ub9e4\uc6b0 \uc720\uc6a9\ud558\uba70, \uc18c\ud504\ud2b8\uc6e8\uc5b4 \uac1c\ubc1c\uc5d0\uc11c \ub9ce\uc740 \uc774\uc810\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"
\uc790\ubc14 \ub514\uc790\uc778 \ud328\ud134\uc73c\ub85c \uc778\ud130\ud398\uc774\uc2a4 \ubd84\ub9ac: \uc778\ud130\ud398\uc774\uc2a4 \ubd84\ub9ac \uc6d0\uce59\uc758 \uc801\uc6a9<\/p>\n","protected":false},"author":1,"featured_media":33704,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1957],"tags":[2675,2523,2188,401,2584,5925,5979,3414],"class_list":["post-36222","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-development","tag-abstract","tag-pattern","tag-public","tag-super","tag-system","tag-5925","tag-5979","tag-3414"],"acf":[],"_links":{"self":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/36222","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=36222"}],"version-history":[{"count":1,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/36222\/revisions"}],"predecessor-version":[{"id":36271,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/36222\/revisions\/36271"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/media\/33704"}],"wp:attachment":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/media?parent=36222"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/categories?post=36222"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/tags?post=36222"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}