\uc774\uc81c \uc5ec\uae30\uc11c\ubd80\ud130\ub294 \uac1c\uc120\uc758 \uc5ec\uc9c0\ub97c \ucc3e\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc5b4\ub5bb\uac8c \ud558\uba74 EventSrc \ud074\ub798\uc2a4\uac00 \ub2f4\ub2f9\ud558\uace0 \uc788\ub294 Fire \ud568\uc218\ub97c Observed\uc5d0\uac8c \uc804\uac00\uc2dc\ud0ac \uc218 \uc788\uc744\uae4c\uc694? \uadf8\ub798\uc11c EventSrc \ud074\ub798\uc2a4\ub97c \uc5c6\uc568 \uc218 \uc788\uaca0\ub294\uac00? \uadf8 \ud574\ub2f5\uc740 \ud568\uc218\uc790(Functor)\uc5d0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uba3c\uc800 \uc5f0\uc2b5\uacb8\ud574\uc11c \uac04\ub2e8\ud558\uac8c \ud568\uc218\uc790\ub97c \uc0ac\uc6a9\ud574\uc11c 1\ub2e8\uacc4\uc758 \ucf54\ub4dc\ub97c \uc218\uc815\ud574 \ubcf4\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4. \uc544\ub798\ub294 \uc0c8\ub86d\uac8c \ucd94\uac00\ud55c \ud568\uc218\uc790\uc5d0 \ub300\ud55c \ud074\ub798\uc2a4\uc785\ub2c8\ub2e4.<\/p>\n
class Functor {\r\nprivate:\r\n int arg_;\r\n\r\npublic:\r\n Functor(int arg) {\r\n arg_ = arg;\r\n }\r\n\r\n void operator()(Observable *pOb) const {\r\n pOb->OnEvent(arg_);\r\n }\r\n};<\/pre>\n\uc774 \ud568\uc218\uc790\ub97c \uc0ac\uc6a9\ud558\uba74, EventSrc \ud074\ub798\uc2a4\uc758 Fire \ud568\uc218\uac00 \uc544\ub798\ucc98\ub7fc \ubb34\ucc99 \uae54\ub054\ud558\uac8c \uc791\uc131\ub429\ub2c8\ub2e4.<\/p>\n
void Fire(int a)\r\n{\r\n std::for_each(m_listObserver.begin(), m_listObserver.end(), Functor(a));\r\n}<\/pre>\n\ud558\uc9c0\ub9cc \uc774\ub7f0 \ubc29\uc2dd\uc740 Fire \ud568\uc218\ub97c \uae54\ub054\ud558\uac8c \ub9cc\ub4e4\uc5b4\uc900\ub2e4\ub294 \uc0ac\uc18c\ud55c \uc7a5\uc810\uc740 \uc788\uc9c0\ub9cc, \ub2e4\ub978 \uc5b4\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0 \uc801\uc6a9\ud560\ub54c \ub9e4\ubc88 \ud568\uc218\uc790\ub97c \uac01\uac01\uc758 \uacbd\uc6b0\uc5d0 \ub9de\uac8c \uc0c8\ub86d\uac8c \ucf54\ub529\ud574\uc918\uc57c \ud558\ub294 \uc218\uace0\ub85c\uc6c0\uc774 \ub354\uc6b1 \ub9ce\uc2b5\ub2c8\ub2e4. \ub610\ud55c \uc5ec\uc804\uc774 Observed\uc5d0\uc11c\ub294 \uc790\uc2e0\uc774 \uad00\ub9ac\ud558\uace0 \uc788\ub294 Observer \uac1d\uccb4\ub4e4\uc774 \ud638\ucd9c\ud574\uc57c\ud560 \ud568\uc218\uac00 \ubb34\uc5c7\uc778\uc9c0\ub97c \uc54c \uae38\uc774 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n
\ud558\uc9c0\ub9cc \uc5ec\uae30\uc11c \uacf0\uacf0\uc774 \uc0dd\uac01\ud574 \ubcf4\uba74 \uc774 \ud568\uc218\uc790\ub97c Observed \ud074\ub798\uc2a4\uc758 inner class\ub85c \uc815\uc758\ud574\ubcf4\ub294 \uac83\uc5d0 \ub300\ud55c \uc544\uc774\ub514\uc5b4\uac00 \ub5a0\uc624\ub985\ub2c8\ub2e4. \uac8c\ub2e4\uac00 \uc774 \ud568\uc218\uc790 \uc5ed\uc2dc template\ub85c \uc815\uc758\ud574\uc11c Observed \ud074\ub798\uc2a4\uac00 \uad00\ub9ac\ud558\uace0 \uc788\ub294 Observer \uac1d\uccb4\ub4e4\uc774 \ud638\ucd9c\ud574\uc57c\ud560 \ud568\uc218\ub97c \ud0c0\uc785\uc73c\ub85c \ubc1b\uc544 \ubc84\ub9b0\ub2e4\uba74 Observed\uac00 \uc54c\uc544\uc57c\ud560 Observer\uc758 \uc815\ubcf4\ub97c \ubaa8\ub450 Observed\uc5d0\uac8c \ub118\uaca8\uc904 \uc218 \uc788\uac8c\ub418\uc5b4, Fire\uc758 \ucc45\uc784\uc744 Observed\uac00 \ub9e1\uc744 \uc218 \uc788\uac8c \ub429\ub2c8\ub2e4. \uadf8\ub7ec\uba74 \ub354 \uc774\uc0c1 EventSrc\ub294 \ud544\uc694\uce58 \uc54a\uac8c \ub418\uace0\uc694. \uc774\ub7ec\ud55c \uc544\uc774\ub514\uc5b4\uc5d0 \ucc29\uc548\ud574\uc11c \uc0c8\ub86d\uac8c \uad6c\ud604\ub41c Observed \ud074\ub798\uc2a4\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n
template \r\nclass Observed\r\n{\r\npublic:\r\n class Firer1 {\r\n public:\r\n explicit Firer1(T_result (T::*pMember)(T_arg1), T_arg1 arg1) {\r\n m_pMemFunc = pMember;\r\n m_arg1 = arg1;\r\n }\r\n\r\n T_result operator()(T* pClass) const {\r\n return ((pClass->*m_pMemFunc)(m_arg1));\r\n }\r\n\r\n private:\r\n T_result (T::*m_pMemFunc)(T_arg1);\r\n T_arg1 m_arg1;\r\n };\r\n\r\npublic: \/\/ type define\r\n typedef std::list typeObservers;\r\n\r\nprotected: \/\/ private attribute\r\n typeObservers m_listObserver;\r\n T_result (T::*m_pMemFunc)(T_arg1);\r\n}\r\n\r\npublic: \/\/ ctr & dtr\r\n Observed(T_result (T::*pMember)(T_arg1)) {\r\n m_pMemFunc = pMember;\r\n }\r\n virtual ~Observed() {}\r\n\r\npublic: \/\/ operator\r\n void RegisterObserver(T *pOb)\r\n {\r\n m_listObserver.push_back( pOb );\r\n }\r\n\r\n void UnRegisterObserver(T *pOb)\r\n {\r\n m_listObserver.remove(pOb);\r\n }\r\n\r\npublic: \/\/ Fire!\r\n void Fire(T_arg1 arg1)\r\n {\r\n std::for_each(m_listObserver.begin(), m_listObserver.end(), \r\n Firer1(m_pMemFunc, arg1));\r\n }\r\n};<\/pre>\n\uad75\uc740 \uccad\uc0c9 \ud3f0\ud2b8\ub85c \ub41c \uac83\uc774 \uc218\uc815\ub418\uac70\ub098 \uc0c8\ub86d\uac8c \ucd94\uac00\ub41c \uac83\uc785\ub2c8\ub2e4. Observed\uac00 \uad00\ub9ac\ud558\uace0 \uc788\ub294 Observer\uc758 \ud638\ucd9c\ud568\uc218\uc758 \ubc18\ud658\uac12\uacfc \uc778\uc790, \uadf8\ub9ac\uace0 \ud638\ucd9c\ud568\uc218\uc5d0 \ub300\ud55c \ud0c0\uc785\uc744 template \uc778\uc790\uc778 T_result\uc640 T_arg1\uc73c\ub85c \ubc1b\uace0, \ud638\ucd9c\ud568\uc218\ub294 \uc0dd\uc131\uc790\uc5d0\uc11c \ubc1b\uc544 \ub9f4\ubc84\ubcc0\uc218\uc778 m_pMemFunc\uc5d0 \uc800\uc7a5\ud558\ub3c4\ub85d \ud558\uc600\uc2b5\ub2c8\ub2e4.<\/p>\n
\uc774\ub807\uac8c \uc0c8\ub86d\uac8c \uad6c\ud604\ub41c Observed\ub97c \uc774\uc6a9\ud574\uc11c Client \uce21\uc5d0\uc11c \uc0ac\uc6a9\ud558\ub294 \ucf54\ub4dc\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n
int _tmain(int argc, _TCHAR* argv[])\r\n{\r\n Observed *pES = \r\n new Observed(&Observable::OnEvent);\r\n\r\n Observable_A *pOA = new Observable_A();\r\n Observable_B *pOB = new Observable_B();\r\n\r\n pES->RegisterObserver(pOA);\r\n pES->RegisterObserver(pOB);\r\n\r\n pES->Fire(99);\r\n\r\n delete pOA;\r\n delete pOB;\r\n delete pES;\r\n\r\n return 0;\r\n}<\/pre>\n\uc774\uc81c \ub9c8\uc9c0\ub9c9\uc73c\ub85c \ud558\ub098 \ub354 \uc9da\uace0 \uc815\ub9ac\ub97c \ud558\uaca0\uc2b5\ub2c8\ub2e4. \uc5ec\uae30\uc11c \ud55c\uac00\uc9c0 \ud070 \ubb38\uc81c\uac00 \uc788\ub294\ub370 \uadf8\uac83\uc740 Observed\uac00 \uad00\ub9ac\ud558\uace0 \uc788\ub294 Observer\uc758 \ud638\ucd9c\ud574\uc57c\ud560 \ud568\uc218\uc758 \uc778\uc790 \uac1c\uc218\uc5d0 \uad00\ud55c \ubb38\uc81c\uc785\ub2c8\ub2e4. \uc9c0\uae08\uac00\uc9c0\uc758 \uacbd\uc6b0\ub294 \ub2e8\uc9c0 \ud558\ub098\uc758 \uc778\uc790\ub9cc\uc744 \ubc1b\ub294 \uacbd\uc6b0\uc9c0\ub9cc \ub450\uac1c \uc774\uc0c1\uc758 \uc778\uc790\ub97c \ubc1b\ub294 \uacbd\uc6b0\uc5d0 \ub300\ud55c \ucc98\ub9ac\ub3c4 \ud544\uc694\ud558\uc9c0\uc694. \ud558\uc9c0\ub9cc \uc774\uac83 \uc5ed\uc2dc \uadf8\ub9ac \uc5b4\ub835\uc9c0 \uc54a\uac8c \ud574\uacb0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. Observed\uc758 inner class\uc778 \ud568\uc218\uc790\uc758 \uc774\ub984\uc774 Firer1\uc778 \uc774\uc720\ub294 \ud558\ub098\uc758 \uc778\uc790\ub97c \ubc1b\ub294 \ud568\uc218\uc790\uc774\uae30 \ub54c\ubb38\uc5d0 Firer \ub4a4\uc5d0 1\uc744 \ubd99\uc778 \uac83\uc785\ub2c8\ub2e4. \uadf8\ub807\ub2e4\uba74 \uc774\uc81c 2\uac1c\uc758 \uc778\uc790\ub97c \ubc1b\ub294 Firer2 \ud568\uc218\uc790\ub97c \uc815\uc758\ud558\uace0 \uc778\uc790\ub97c 2\uac1c\ub97c \ubc1b\ub294 Fire \ub9f4\ubc84\ud568\uc218\ub97c \ud558\ub098\ub354 \ub9cc\ub4e4\uc5b4 \ub450\uba74 \ub429\ub2c8\ub2e4.<\/p>\n
\uc774\uc81c Client\ub294 1\ub2e8\uacc4\ucc98\ub7fc \uad00\ub9ac\ud558\uace0\uc790 \ud558\ub294 Observer\uc5d0 \ub300\ud574 EventSrc\uc640 Observable \ud074\ub798\uc2a4 \ubaa8\ub450\ub97c \uc815\uc758\ud560 \ud544\uc694\uac00 \uc5c6\uc774, Observable \ud074\ub798\uc2a4 \ub2e8\ud558\ub098\ub9cc \uc2e0\uacbd \uc4f0\uba74 \ub418\uac8c \ub418\uc5c8\uc2b5\ub2c8\ub2e4. \uadf8\ub9ac\uace0 Observer\uc5d0 \ub300\ud55c \ubaa8\ub4e0 \uad00\ub9ac\uc5d0 \ub300\ud55c \ucc45\uc784\uc744 \uc624\uc9c1 Observed\uac00 \ub9e1\uac8c \ub418\uc5b4 SRP\ub97c \uc9c0\ud0a4\uac8c \ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"
\uc774\uc81c \uc5ec\uae30\uc11c\ubd80\ud130\ub294 \uac1c\uc120\uc758 \uc5ec\uc9c0\ub97c \ucc3e\uc544\ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \uc5b4\ub5bb\uac8c \ud558\uba74 EventSrc \ud074\ub798\uc2a4\uac00 \ub2f4\ub2f9\ud558\uace0 \uc788\ub294 Fire \ud568\uc218\ub97c Observed\uc5d0\uac8c \uc804\uac00\uc2dc\ud0ac \uc218 \uc788\uc744\uae4c\uc694? \uadf8\ub798\uc11c EventSrc \ud074\ub798\uc2a4\ub97c \uc5c6\uc568 \uc218 \uc788\uaca0\ub294\uac00? \uadf8 \ud574\ub2f5\uc740 \ud568\uc218\uc790(Functor)\uc5d0 \uc788\uc2b5\ub2c8\ub2e4. \uba3c\uc800 \uc5f0\uc2b5\uacb8\ud574\uc11c \uac04\ub2e8\ud558\uac8c \ud568\uc218\uc790\ub97c \uc0ac\uc6a9\ud574\uc11c 1\ub2e8\uacc4\uc758 \ucf54\ub4dc\ub97c \uc218\uc815\ud574 \ubcf4\ub3c4\ub85d \ud558\uaca0\uc2b5\ub2c8\ub2e4. \uc544\ub798\ub294 \uc0c8\ub86d\uac8c \ucd94\uac00\ud55c \ud568\uc218\uc790\uc5d0 \ub300\ud55c \ud074\ub798\uc2a4\uc785\ub2c8\ub2e4. class Functor { private: int arg_; public: Functor(int arg) { arg_ = … <\/p>\n