{"id":190,"date":"2006-10-30T13:30:00","date_gmt":"2006-10-30T13:30:00","guid":{"rendered":"http:\/\/www.gisdeveloper.co.kr\/?p=190"},"modified":"2017-01-29T15:09:36","modified_gmt":"2017-01-29T06:09:36","slug":"template%ec%9d%84-%ec%9d%b4%ec%9a%a9%ed%95%9c-observer-%ed%8c%a8%ed%84%b4-1%eb%8b%a8%ea%b3%84","status":"publish","type":"post","link":"http:\/\/www.gisdeveloper.co.kr\/?p=190","title":{"rendered":"Template\uc744 \uc774\uc6a9\ud55c Observer \ud328\ud134 – 1\ub2e8\uacc4"},"content":{"rendered":"

C++\uc758 template\uc744 \uc774\uc6a9\ud574\uc11c Observer\ub97c \uad6c\ud604\ud558\ub294 \uac83\uc5d0 \ub300\ud55c \ub2e8\uacc4\uc801 \uc124\uba85\uc785\ub2c8\ub2e4. \uc6d0\ubcf8\uc740 \ub370\ube0c\ud53c\uc544\uc5d0\uc11c \uae40\ud0dc\ud604(tipani)\ub2d8\uc774 \uc62c\ub824 \ub193\uc73c\uc2e0 \uae00\uc744 \uae30\ubc18\uc73c\ub85c \uc791\uc131\ud588\uc73c\uba70 \ud55c\ub2e8\uacc4 \ub354 \uc5c5\uadf8\ub808\uc774\ub4dc \ud588\uc2b5\ub2c8\ub2e4. \uc81c\uac00 \ub298 \ub290\uaef4\uc624\ub294 \uac83\uc774\uc9c0\ub9cc C++\uc758 template\uc740 \uae30\uc874\uc758 \ud074\ub798\uc2a4\uac04 \uad00\uacc4\ub3c4\uc5d0 \ud55c\uc815\ud574 \ubcfc\uc801\uc5d0 \uadf8 \ub514\uc790\uc778\uc744 \ud68d\uae30\uc801\uc73c\ub85c \uac1c\uc120\ud55c\ub2e4\ub294 \uc810\uc5d0\uc11c \uadf8 \ud310\ub3c4\ub97c \ud655 \ubc14\uafc0 \uc218 \uc788\ub294 \uac15\ub825\ud55c \uac1c\ub150\uc774\ub77c\uace0 \uc0dd\uac01\ud569\ub2c8\ub2e4. \uc544\ubb34\ucabc\ub85d \uc81c\uac00 \uae40\ud0dc\ud604\ub2d8\uc758 \uae00\uc744 \ubcf4\uace0 \ub9e4\uc6b0 \uc7ac\ubbf8\uc788\uac8c template\uc5d0 \ud55c\ubc1c\uc9dd \ub2e4\uac00\uc12f\ub4ef\uc774 \uc5ec\ub7ec\ubd84\ub3c4 \uc81c \uae00\uc744 \ud1b5\ud574 template\uc5d0 \ud55c\ubc1c\uc9dd \ub2e4\uac00 \uc124\uc218\uc788\ub2e4\uba74 \uc815\ub9d0 \uae30\uc058\uaca0\uc2b5\ub2c8\ub2e4. \ucc38\uace0\ub85c \uc774 \uae00\uc744 \uc77d\uae30 \uc804\uc5d0 Observer \ud328\ud134\uc774 \ubb34\uc5c7\uc778\uc9c0 \ud328\ud134\uc785\ubb38\uc11c\ub97c \uc0b4\ud3b4\ubcf4\uc2dc\uae38 \ubc14\ub78d\ub2c8\ub2e4. \ub610\ud55c \uc774 \uae00\uc758 \uc9c4\ud589\uc740 \ub2e8\uacc4 \ub2e8\uacc4 \uac1c\uc120\ud574 \ub098\uac00\ub294 \ud750\ub984\uc73c\ub85c \uc9c4\ud589\ub41c\ub2e4\ub294 \uc810\uc5d0 \uc720\uc758\ud558\uc2dc\uae38 \ubc14\ub78d\ub2c8\ub2e4.<\/p>\n

\uba3c\uc800 1\ub2e8\uacc4\uc785\ub2c8\ub2e4. \uc544\ub798\uc758 \ucf54\ub4dc\ub294 Observer\ub4e4\uc758 \uad00\ub9ac\uc5d0 \ub300\ud55c \ucc45\uc784\uc744 \ub9e1\uace0 \uc788\ub294 Observed \ud074\ub798\uc2a4\uc785\ub2c8\ub2e4.<\/p>\n

template \r\nclass Observed {\r\npublic:\r\n    Observed() {}\r\n    typedef std::list typeObservers;\r\n    virtual ~Observed() {}\r\n\r\n    void RegisterObserver(T *pOb) {\r\n        m_listObserver.push_back( pOb );\r\n    }\r\n\r\n    void UnRegisterObserver(T *pOb) {\r\n        m_listObserver.remove(pOb);\r\n    }\r\n\r\nprotected:\r\n    typeObservers m_listObserver;\r\n\r\n};<\/pre>\n
Observed\uac00 \uad00\ub9ac\ud558\ub294 Observer \ud074\ub798\uc2a4\uc778 Observabe \uc785\ub2c8\ub2e4. \ub2e8\uc21c\ud788 Observed\uac00 \ud638\ucd9c\ud560 Observer\uc758 OnEvent \ud568\uc218\uac00 \uc21c\uc218\uac00\uc0c1\ud568\uc218\ub85c \uc120\uc5b8\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
class Observable {\r\n    virtual void OnEvent(int a) = 0;\r\n};<\/pre>\n
\uadf8\ub9ac\uace0 \uc544\ub798\ub294 Obserable\ub97c \uc0c1\uc18d\ubc1b\uc544 \uad6c\ud604\ud55c \ud074\ub798\uc2a4\ub4e4\uc785\ub2c8\ub2e4.<\/p>\n
class Observable_A : public Observable\r\n{\r\n    virtual void OnEvent(int a) {\r\n        std::cout << \"Fire_A -> \" << a << std::endl;\r\n    }\r\n};\r\n\r\nclass Observable_B : public Observable\r\n{\r\n    virtual void OnEvent(int a) {\r\n        std::cout << \"Fire_B -> \" << a << std::endl;\r\n    }\r\n};\r\n<\/pre>\n
\uc774\uc81c \ub9c8\uc9c0\ub9c9\uc73c\ub85c Observed\uac00 \uc790\uc2e0\uc774 \uad00\ub9ac\ud558\uace0 \uc788\ub294 Observable\uc758 OnEvent\ub97c \ud638\ucd9c\ud574 \uc918\uc57c \ud558\ub294\ub370, Observed \ud074\ub798\uc2a4\ub294 \uc790\uc2e0\uc774 \uad00\ub9ac\ud558\uace0 \uc788\ub294 Observable\uc758 \ud0c0\uc785\uc744 \ubaa8\ub974\uae30 \ub54c\ubb38\uc5d0 Observed\uc640 Observable\uc758 \uad00\uacc4\ub97c \uc5f0\uacb0\ud574 \uc8fc\uae30 \uc704\ud55c, Observed\ub85c\ubd80\ud130 \uc0c1\uc18d\ubc1b\uc740 EventSrc \ud074\ub798\uc2a4\uac00 \ud544\uc694\ud569\ub2c8\ub2e4.<\/p>\n
class EventSrc : public Observed\r\n{\r\n    void Fire(int a)\r\n    {\r\n        typeObservers::itrator it;\r\n        for(it=m_listObserver.begint(); it!=m_listObserver.end; ++it) {\r\n            (*it)->OnEvent(a);\r\n        }\r\n    }\r\n};\r\n<\/pre>\n
\ub4dc\ub514\uc5b4 1\ub2e8\uacc4\uc758 Observer \ud328\ud134\uc758 \uad6c\ud604\uc774 \uc644\uc131\ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uc2e4\uc81c \uc0ac\uc6a9\ud558\ub294 \uc608\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n
int main() {\r\n    EventSrc *pES = new EventSrc();\r\n    Observable *pO_A = new Observale_A();\r\n    Observable *pO_B = new Observale_B();\r\n\r\n    pES->RegisterObserver(pOA);\r\n    pES->RegisterObserver(pOB);\r\n\r\n    pES->Fire(99);\r\n\r\n\r\n    delete pO_B;\r\n    delete pO_A;\r\n    delete pES;\r\n\r\n    return 0;\r\n}\r\n<\/pre>\n
1\ub2e8\uacc4\uc5d0\uc11c \uc0b0\ucd9c\ub41c \uc18c\uc2a4\ub9cc\uc73c\ub85c\ub3c4 \ucda9\ubd84\ud560 \uc218\ub3c4 \uc788\uaca0\uc9c0\ub9cc, \ud070 \ubb38\uc81c\uc810\uc774 \ud558\ub098 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\uac83\uc740 \ubc14\ub85c SRP(Single Responsiblity Principle)\ub97c \uc704\ubc18\ud55c\ub2e4\ub294 \uc0ac\uc2e4\uc785\ub2c8\ub2e4. \uc989, Obserable\ub97c \uad00\ub9ac\ud558\ub294 \ucc45\uc784\uc744 Observed\uc640 EventSrc\ub77c\ub294 \ub450\uac1c\uc758 \ud074\ub798\uc2a4\uac00 \ucc45\uc784\uc744 \ub098\ub220\uc11c \uc9c0\uace0 \uc788\ub2e4\ub294 \uc810\uc785\ub2c8\ub2e4. \uadf8\ub7f4\uc218\ubc16\uc5d0 \uc5c6\ub294 \uc774\uc720\ub294 \ubcf8\ubb38\uc5d0 \uc5b8\uae09\uc744 \ud588\uad6c\uc694. <\/p>\n
\uc774\uc81c \ub2e4\uc74c 2\ub2e8\uacc4 \uc774\ud6c4\ubd80\ud130\ub294 \uc774\ub7ec\ud55c SRP\uc758 \uc6d0\uce59\uc744 \uc9c0\ucf1c\ub098\uac00\ub294 \uac83\uc744 \ud574\uacb0\ubb38\uc81c\ub85c \ub2e4\ub904\ub098\uac00\uba74\uc11c \uc810\ucc28\uc801\uc73c\ub85c \uac1c\uc120\ub41c Observer \ud328\ud134\uc744 \uad6c\ud604\ud574\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"
C++\uc758 template\uc744 \uc774\uc6a9\ud574\uc11c Observer\ub97c \uad6c\ud604\ud558\ub294 \uac83\uc5d0 \ub300\ud55c \ub2e8\uacc4\uc801 \uc124\uba85\uc785\ub2c8\ub2e4. \uc6d0\ubcf8\uc740 \ub370\ube0c\ud53c\uc544\uc5d0\uc11c \uae40\ud0dc\ud604(tipani)\ub2d8\uc774 \uc62c\ub824 \ub193\uc73c\uc2e0 \uae00\uc744 \uae30\ubc18\uc73c\ub85c \uc791\uc131\ud588\uc73c\uba70 \ud55c\ub2e8\uacc4 \ub354 \uc5c5\uadf8\ub808\uc774\ub4dc \ud588\uc2b5\ub2c8\ub2e4. \uc81c\uac00 \ub298 \ub290\uaef4\uc624\ub294 \uac83\uc774\uc9c0\ub9cc C++\uc758 template\uc740 \uae30\uc874\uc758 \ud074\ub798\uc2a4\uac04 \uad00\uacc4\ub3c4\uc5d0 \ud55c\uc815\ud574 \ubcfc\uc801\uc5d0 \uadf8 \ub514\uc790\uc778\uc744 \ud68d\uae30\uc801\uc73c\ub85c \uac1c\uc120\ud55c\ub2e4\ub294 \uc810\uc5d0\uc11c \uadf8 \ud310\ub3c4\ub97c \ud655 \ubc14\uafc0 \uc218 \uc788\ub294 \uac15\ub825\ud55c \uac1c\ub150\uc774\ub77c\uace0 \uc0dd\uac01\ud569\ub2c8\ub2e4. \uc544\ubb34\ucabc\ub85d \uc81c\uac00 \uae40\ud0dc\ud604\ub2d8\uc758 \uae00\uc744 \ubcf4\uace0 \ub9e4\uc6b0 \uc7ac\ubbf8\uc788\uac8c template\uc5d0 \ud55c\ubc1c\uc9dd … <\/p>\n
\ub354 \ubcf4\uae30 “Template\uc744 \uc774\uc6a9\ud55c Observer \ud328\ud134 – 1\ub2e8\uacc4”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[14,15,16,17],"class_list":["post-190","post","type-post","status-publish","format-standard","hentry","category-design","tag-c","tag-design","tag-pattern","tag-template"],"_links":{"self":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/190","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=190"}],"version-history":[{"count":1,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/190\/revisions"}],"predecessor-version":[{"id":3714,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=\/wp\/v2\/posts\/190\/revisions\/3714"}],"wp:attachment":[{"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=190"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=190"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.gisdeveloper.co.kr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=190"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}