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Proxy Pattern

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Proxy Pattern ろ碁ゼ 蠖蠑碁 http://cafe.naver.com/architect1 覦 : 蟾郁鍵 http://scor7910.tistory.com
Proxy [pr ksi] : 1 襴 , 襴蟠 2 襴 ,
Context 企殊伎誤瑚 轟 觜 轟 覈 (Component) 蠏 , 語企 , OS 襷 覦覯企 蟲 襴螻 覲旧″ .
Problem Component 襯 / 蠏 . 企殊伎誤 レ 蟆 (OS, 語癌 ) 蟯 企 蟲覓語 觜訣伎 . 蟆曙 焔ロ曙企 觜 れ 螻覩狩伎 .
Solution 企殊伎誤瑚 Component 讌 蠏 讌 螻 襴襯 牛 蟆郁骸襯 詞 蟆 . 襴 Component Interface 襯 螻牛螻 , 企殊伎誤瑚 螳 / 蟆 蟆郁骸襯 詞 襦 豢螳 伎 .
Structure Class Client レ Proxy 豈 Proxy 襯 牛 誤壱伎 襯 . 豌 . Class AbstractOriginal レ 豈 Proxy 覲 企 豢 base 企 . Class Proxy レ Original 豈 覲 (Original) 誤壱 伎るゼ Client 螻 . 蟆 蠏狩螻 覦 襯 覲伎ロ伎 . Class Original レ 豈 轟 觜 , 蟲 .
Dynamic Client Proxy Original Task Servic e Servic e
Implementation Proxy 豌襴 蟆螻 Original 豌 襴 覈 . 豢 蠍磯蓋 企れ Original 螻 Proxy 企るゼ 燕 . Proxy 企れ 蟲 . Proxy 企れ 蟆讌 Client Origin 企れ 譴覲給伎る 蟇壱 . Proxy 企れ Origin 企るゼ 郁屋 . Origin 螻 企殊伎誤瑚 讌 蟯螻襯 蟇 .
Variant(1) Remote Proxy : 覲語 覓朱Μ 豺襯 ロ螻 企殊伎誤碁 Proxy 襯 伎 覲碁一危磯ゼ 詞伎 . Protection Proxy : 蟠 企 一危磯ゼ 語 襦螳 蟠 蟆螻 蟆郁骸襯 企殊伎誤語蟆 譴 .
Variant(2) Cache Proxy : Proxy 覲 (Original) 一危磯ゼ 覩碁Μ 覦 螻 Client 觜襯願 一危磯ゼ 豌襴 . Proxy 一危一 蟆 Client 覦覲旧 一危 豌 豌襴螳 .
Variant(3) Synchronization Proxy : れ 磯螳 覲 一危一 蠏 蠍壱 Proxy 襦 . template <class T> class LockingProxy { public: LockingProxy(T* pObj) : pointee_ (pObj) { pointee_->Lock(); } ~LockingProxy() { pointee_->Unlock(); } T* operator->() const { return pointee_; } private: LockingProxy& operator=(const LockingProxy&); T* pointee_; }; 豢豌 : Modern C++ Design
Variant(4) Counting Proxy : 企 instance counting Proxy 螻壱螻 / 蟲譟一 . Virtual Proxy : client 螳 一危磯ゼ 豌覃 Proxy 襦貉 ル 一危 襯 企殊伎誤語 譯手 , 譟伎讌 一危磯 覲語 豌 一 磯ゼ 詞伎 .
Variant(5) Firewall Proxy : 碁 ろ語襦覿 れ伎り 螳 血 Proxy 覿 覲伎 れ 誤 碁 ろ語 襷螻 旧 蟯襴 .
Known Use NeXTSTEP OMG CORBA(Common Object Request Broker Architecture) World Wide Web OLE(Object Linking & Embedding)
Consequence レ - レ り 觜 螳 . 覯 Component 豺 Client 螳 覿 襴 ろ語螳 覲蟆曙 朱 Client 蟇郁鍵 蟯 貊襯 朱 . Proxy 企る 誤 Client 螳 狩 覿 貊襯 伎 .
Consequence - 壱 覦 蠍 覓語 焔レ . 讌豺蟆 覃 螻朱襯 螳語 .

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Proxy pattern

  • 1. Proxy Pattern ろ碁ゼ 蠖蠑碁 http://cafe.naver.com/architect1 覦 : 蟾郁鍵 http://scor7910.tistory.com
  • 2. Proxy [pr ksi] : 1 襴 , 襴蟠 2 襴 ,
  • 3. Context 企殊伎誤瑚 轟 觜 轟 覈 (Component) 蠏 , 語企 , OS 襷 覦覯企 蟲 襴螻 覲旧″ .
  • 4. Problem Component 襯 / 蠏 . 企殊伎誤 レ 蟆 (OS, 語癌 ) 蟯 企 蟲覓語 觜訣伎 . 蟆曙 焔ロ曙企 觜 れ 螻覩狩伎 .
  • 5. Solution 企殊伎誤瑚 Component 讌 蠏 讌 螻 襴襯 牛 蟆郁骸襯 詞 蟆 . 襴 Component Interface 襯 螻牛螻 , 企殊伎誤瑚 螳 / 蟆 蟆郁骸襯 詞 襦 豢螳 伎 .
  • 6. Structure Class Client レ Proxy 豈 Proxy 襯 牛 誤壱伎 襯 . 豌 . Class AbstractOriginal レ 豈 Proxy 覲 企 豢 base 企 . Class Proxy レ Original 豈 覲 (Original) 誤壱 伎るゼ Client 螻 . 蟆 蠏狩螻 覦 襯 覲伎ロ伎 . Class Original レ 豈 轟 觜 , 蟲 .
  • 8. Implementation Proxy 豌襴 蟆螻 Original 豌 襴 覈 . 豢 蠍磯蓋 企れ Original 螻 Proxy 企るゼ 燕 . Proxy 企れ 蟲 . Proxy 企れ 蟆讌 Client Origin 企れ 譴覲給伎る 蟇壱 . Proxy 企れ Origin 企るゼ 郁屋 . Origin 螻 企殊伎誤瑚 讌 蟯螻襯 蟇 .
  • 9. Variant(1) Remote Proxy : 覲語 覓朱Μ 豺襯 ロ螻 企殊伎誤碁 Proxy 襯 伎 覲碁一危磯ゼ 詞伎 . Protection Proxy : 蟠 企 一危磯ゼ 語 襦螳 蟠 蟆螻 蟆郁骸襯 企殊伎誤語蟆 譴 .
  • 10. Variant(2) Cache Proxy : Proxy 覲 (Original) 一危磯ゼ 覩碁Μ 覦 螻 Client 觜襯願 一危磯ゼ 豌襴 . Proxy 一危一 蟆 Client 覦覲旧 一危 豌 豌襴螳 .
  • 11. Variant(3) Synchronization Proxy : れ 磯螳 覲 一危一 蠏 蠍壱 Proxy 襦 . template <class T> class LockingProxy { public: LockingProxy(T* pObj) : pointee_ (pObj) { pointee_->Lock(); } ~LockingProxy() { pointee_->Unlock(); } T* operator->() const { return pointee_; } private: LockingProxy& operator=(const LockingProxy&); T* pointee_; }; 豢豌 : Modern C++ Design
  • 12. Variant(4) Counting Proxy : 企 instance counting Proxy 螻壱螻 / 蟲譟一 . Virtual Proxy : client 螳 一危磯ゼ 豌覃 Proxy 襦貉 ル 一危 襯 企殊伎誤語 譯手 , 譟伎讌 一危磯 覲語 豌 一 磯ゼ 詞伎 .
  • 13. Variant(5) Firewall Proxy : 碁 ろ語襦覿 れ伎り 螳 血 Proxy 覿 覲伎 れ 誤 碁 ろ語 襷螻 旧 蟯襴 .
  • 14. Known Use NeXTSTEP OMG CORBA(Common Object Request Broker Architecture) World Wide Web OLE(Object Linking & Embedding)
  • 15. Consequence レ - レ り 觜 螳 . 覯 Component 豺 Client 螳 覿 襴 ろ語螳 覲蟆曙 朱 Client 蟇郁鍵 蟯 貊襯 朱 . Proxy 企る 誤 Client 螳 狩 覿 貊襯 伎 .
  • 16. Consequence - 壱 覦 蠍 覓語 焔レ . 讌豺蟆 覃 螻朱襯 螳語 .
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