{"id":34598,"date":"2023-05-27T08:08:01","date_gmt":"2023-05-26T23:08:01","guid":{"rendered":"https:\/\/m9js.shop\/blog\/?p=34598"},"modified":"2023-05-27T08:08:01","modified_gmt":"2023-05-26T23:08:01","slug":"flyweight-pattern-in-java-optimizing-memory-usage","status":"publish","type":"post","link":"https:\/\/m9js.shop\/blog\/development\/flyweight-pattern-in-java-optimizing-memory-usage","title":{"rendered":"\uc790\ubc14\uc5d0\uc11c\uc758 \ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134: \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9 \ucd5c\uc801\ud654\ud558\uae30"},"content":{"rendered":"

\uc790\ubc14\uc5d0\uc11c\uc758 \ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134\uc774\ub780?<\/h1>\n

\uc790\ubc14\uc5d0\uc11c \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \ucd5c\uc801\ud654\ud558\uace0 \uc131\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\uae30 \uc704\ud574 \uc5ec\ub7ec \uac00\uc9c0 \ud328\ud134\uc744 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8 \uc911\uc5d0\uc11c\ub3c4 \ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134\uc740 \uac1d\uccb4\ub97c \uacf5\uc720\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \ucd5c\uc18c\ud654\ud558\ub294 \ud328\ud134\uc785\ub2c8\ub2e4. \ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134\uc740 \uac1d\uccb4\ub97c \uc0dd\uc131\ud558\ub294 \ube44\uc6a9\uacfc \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \uc904\uc774\uae30 \uc704\ud574 \uc801\ud569\ud55c \ud328\ud134\uc785\ub2c8\ub2e4.<\/p>\n

\ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134\uc740 \uac1d\uccb4\ub97c \uacf5\uc720\ud574\uc11c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uac1d\uccb4\ub97c \uacf5\uc720\ud558\uba74 \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \ud328\ud134\uc740 \uac1d\uccb4\uc758 \uc0dd\uc131 \ube44\uc6a9\uacfc \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \ucd5c\uc18c\ud654\ud558\ub294 \ub370 \ud6a8\uacfc\uc801\uc785\ub2c8\ub2e4.<\/p>\n

\ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134\uc744 \uc0ac\uc6a9\ud55c \uba54\ubaa8\ub9ac \ucd5c\uc801\ud654 \ubc29\ubc95<\/h1>\n

\ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134\uc740 \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \ucd5c\uc801\ud654\ud558\ub294 \ub370 \uc788\uc5b4\uc11c \ub9e4\uc6b0 \ud6a8\uacfc\uc801\uc785\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134\uc744 \uc0ac\uc6a9\ud55c \uba54\ubaa8\ub9ac \ucd5c\uc801\ud654 \ubc29\ubc95\uc785\ub2c8\ub2e4.<\/p>\n

    \n
  1. \n

    \uac1d\uccb4\ub97c \uacf5\uc720\ud569\ub2c8\ub2e4. \uac1d\uccb4\ub97c \uacf5\uc720\ud558\uba74 \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n

  2. \n

    \uac1d\uccb4\ub97c \uc0dd\uc131\ud558\uc9c0 \uc54a\uace0 \uc7ac\uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uac1d\uccb4\ub97c \uc0dd\uc131\ud558\ub294 \ube44\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n

  3. \n

    \uac1d\uccb4\ub97c \uc0c8\ub85c \uc0dd\uc131\ud558\uae30 \uc804\uc5d0 \uba3c\uc800 \uc874\uc7ac\ud558\ub294 \uac1d\uccb4\ub97c \uac80\uc0c9\ud569\ub2c8\ub2e4. \uac80\uc0c9\ud55c \uac1d\uccb4\ub97c \uc7ac\uc0ac\uc6a9\ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubc29\ubc95\uc73c\ub85c \uac1d\uccb4\ub97c \uc7ac\uc0ac\uc6a9\ud558\uba74 \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n

  4. \n

    \uac1d\uccb4\ub97c \uacf5\uc720\ud560 \ub54c\ub294 Thread-Safe \ud558\ub3c4\ub85d \uad6c\ud604\ud569\ub2c8\ub2e4. \uba40\ud2f0 \uc2a4\ub808\ub4dc \ud658\uacbd\uc5d0\uc11c \uc548\uc804\ud558\uac8c \uac1d\uccb4\ub97c \uacf5\uc720\ud560 \uc218 \uc788\ub3c4\ub85d \uad6c\ud604\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n

  5. \n

    \uac1d\uccb4\ub97c \uacf5\uc720\ud560 \ub54c\ub294 \ub3d9\uc77c\uc131\uc744 \uc720\uc9c0\ud569\ub2c8\ub2e4. \ub3d9\uc77c\ud55c \uac1d\uccb4\ub97c \uc5ec\ub7ec \ubc88 \ud638\ucd9c\ud558\uba74 \ub3d9\uc77c\ud55c \uacb0\uacfc\ub97c \ubc18\ud658\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ol>\n

    \ub2e4\uc74c\uc740 \ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134\uc744 \uc0ac\uc6a9\ud55c \uba54\ubaa8\ub9ac \ucd5c\uc801\ud654\ub97c \uc704\ud55c \ucf54\ub4dc \uc608\uc2dc\uc785\ub2c8\ub2e4.<\/p>\n

    public class Flyweight {\n   private final String intrinsicState;\n   private final String extrinsicState;\n\n   public Flyweight(String intrinsicState, String extrinsicState) {\n      this.intrinsicState = intrinsicState;\n      this.extrinsicState = extrinsicState;\n   }\n\n   public String getIntrinsicState() {\n      return intrinsicState;\n   }\n\n   public String getExtrinsicState() {\n      return extrinsicState;\n   }\n}\n\npublic class FlyweightFactory {\n   private Map flyweights = new HashMap();\n\n   public Flyweight getFlyweight(String key) {\n      Flyweight flyweight = flyweights.get(key);\n\n      if (flyweight == null) {\n         flyweight = new Flyweight(\"intrinsic\", key);\n         flyweights.put(key, flyweight);\n      }\n\n      return flyweight;\n   }\n}\n\npublic class Client {\n   public static void main(String[] args) {\n      FlyweightFactory factory = new FlyweightFactory();\n\n      Flyweight flyweight1 = factory.getFlyweight(\"key1\");\n      Flyweight flyweight2 = factory.getFlyweight(\"key2\");\n      Flyweight flyweight3 = factory.getFlyweight(\"key1\");\n\n      System.out.println(flyweight1 == flyweight3);\n   }\n}<\/code><\/pre>\n

    \ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134\uc758 \uc7a5\ub2e8\uc810\uacfc \uc0ac\uc6a9 \uc0ac\ub840<\/h1>\n

    \uc7a5\uc810<\/h2>\n
      \n
    1. \n

      \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \ucd5c\uc801\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n

    2. \n

      \uac1d\uccb4 \uc0dd\uc131 \ube44\uc6a9\uc744 \uc904\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n

    3. \n

      \uac1d\uccb4\ub97c \uc7ac\uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n

    4. \n

      \uba40\ud2f0 \uc2a4\ub808\ub4dc \ud658\uacbd\uc5d0\uc11c \uc548\uc804\ud558\uac8c \uac1d\uccb4\ub97c \uacf5\uc720\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ol>\n

      \ub2e8\uc810<\/h2>\n
        \n
      1. \n

        \uac1d\uccb4\ub97c \uacf5\uc720\ud558\uba74\uc11c \ub3d9\uc77c\uc131\uc744 \uc720\uc9c0\ud574\uc57c \ud558\ubbc0\ub85c \uac1d\uccb4\uc758 \uc0c1\ud0dc\ub97c \ubcc0\uacbd\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n

      2. \n

        \uacf5\uc720 \uac1d\uccb4\uac00 \ub9ce\uc544\uc9c0\uba74 \ucf54\ub4dc\uc758 \ubcf5\uc7a1\ub3c4\uac00 \uc99d\uac00\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ol>\n

        \uc0ac\uc6a9 \uc0ac\ub840<\/h2>\n
          \n
        1. \n

          \uc790\ubc14\uc5d0\uc11c String \ud074\ub798\uc2a4\uac00 \ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \ub3d9\uc77c\ud55c \ubb38\uc790\uc5f4\uc774\uba74 \ub3d9\uc77c\ud55c \uac1d\uccb4\ub97c \uc0ac\uc6a9\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \ucd5c\uc801\ud654\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n

        2. \n

          \ub2e4\uc591\ud55c GUI \ub77c\uc774\ube0c\ub7ec\ub9ac\uc5d0\uc11c\ub294 \uc774\ubbf8\uc9c0\uc640 \uac19\uc740 \ub9ac\uc18c\uc2a4\ub97c \ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134\uc73c\ub85c \uad00\ub9ac\ud569\ub2c8\ub2e4. \uc774\ubbf8\uc9c0\ub97c \uc5ec\ub7ec \ubc88 \uc0ac\uc6a9\ud558\uba74 \ub3d9\uc77c\ud55c \uac1d\uccb4\ub97c \uc0ac\uc6a9\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \ucd5c\uc801\ud654\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n

        3. \n

          \uc790\ubc14\uc5d0\uc11c \ucee4\ub125\uc158 \ud480\uc774\ub098 \uce90\uc2dc \uad00\ub9ac \ub4f1\uc5d0\uc11c\ub3c4 \ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4. \ub3d9\uc77c\ud55c \uac1d\uccb4\ub97c \uacf5\uc720\ud558\uc5ec \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \ucd5c\uc801\ud654\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ol>\n

          \uacb0\ub860<\/h1>\n

          \uc790\ubc14\uc5d0\uc11c \ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134\uc740 \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \ucd5c\uc801\ud654\ud558\uace0 \uc131\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0a4\ub294 \ub370 \ub9e4\uc6b0 \ud6a8\uacfc\uc801\uc785\ub2c8\ub2e4. \uac1d\uccb4\ub97c \uacf5\uc720\ud558\uace0 \uc7ac\uc0ac\uc6a9\ud558\ub294 \ubc29\uc2dd\uc73c\ub85c \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \ucd5c\uc18c\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134\uc744 \uc0ac\uc6a9\ud558\uba74 \ucf54\ub4dc\uc758 \ubcf5\uc7a1\ub3c4\uac00 \uc99d\uac00\ud560 \uc218 \uc788\uc9c0\ub9cc, \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9\uc744 \uc904\uc774\uace0 \uc131\ub2a5\uc744 \ud5a5\uc0c1\uc2dc\ud0ac \uc218 \uc788\ub2e4\ub294 \uc7a5\uc810\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

          \uc790\ubc14\uc5d0\uc11c\uc758 \ud50c\ub77c\uc774\uc6e8\uc774\ud2b8 \ud328\ud134: \uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9 \ucd5c\uc801\ud654\ud558\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":[2714,2639,2105,2188,3888,2584,5925],"class_list":["post-34598","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-development","tag-factory","tag-flyweight","tag-java","tag-public","tag-static","tag-system","tag-5925"],"acf":[],"_links":{"self":[{"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/34598","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=34598"}],"version-history":[{"count":1,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/34598\/revisions"}],"predecessor-version":[{"id":34647,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/posts\/34598\/revisions\/34647"}],"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=34598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/categories?post=34598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/m9js.shop\/blog\/wp-json\/wp\/v2\/tags?post=34598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}