Design pattern--Responsibility Chain mode (c + + implementation)

　

1#include <iostream>2#include <string>3 4 using namespacestd;5 6 7 classHandler8 {9  Public:TenHandler (handler*Psthandler): M_psthandler (Psthandler) One         { A  -         } -  the         Virtual voidHandleRequest (intRequest) =0; -  - protected: -handler*M_psthandler; + }; -  + classConcreteHandler1: PublicHandler A { at  Public: -ConcreteHandler1 (handler*Psthandler): Handler (Psthandler) -         { -  -         } -  in         Virtual voidHandleRequest (intrequest) -         { to                 if(Request <7) +                 { -cout<<"Group Leader: Granting"<< request<<"days"<<Endl; the                 } *                 Else $                 {Panax NotoginsengM_psthandler->HandleRequest (request); -                 } the         } + }; A  the classConcreteHandler2: PublicHandler + { -  Public: $ConcreteHandler2 (handler*Psthandler): Handler (Psthandler) $         { -  -         } the  -         Virtual voidHandleRequest (intrequest)Wuyi         { the                 if(Request < the) -                 { Wucout<<"Director: Granting"<< request<<"days"<<Endl; -                 } About                 Else $                 { -M_psthandler->HandleRequest (request); -                 } -         } A }; +  the classConcreteHandler3: PublicHandler - { $  Public: theConcreteHandler3 (handler*Psthandler): Handler (Psthandler) the         { the  the         } -  in         Virtual voidHandleRequest (intrequest) the         { the                 if(Request < -) About                 { thecout<<"Manager: Granting"<< request<<"days"<<Endl; the                 } the                 Else +                 { -cout<<"Manager:"<< request<<"days, the time was too long to exceed the company's rules"<<Endl; the                 }Bayi         } the }; the  - intMainintargcChar*argv[]) - { thehandler* Jingli =NewConcreteHandler3 (NULL); thehandler* Zongjian =NewConcreteHandler2 (Jingli); thehandler* Zuzhang =NewConcreteHandler1 (Zongjian); the  -Zuzhang->handlerequest ( A); theZuzhang->handlerequest ( the); theZuzhang->handlerequest (5); theZuzhang->handlerequest ( to);94  the         DeleteJingli; the         DeleteZongjian; the         DeleteZuzhang;98  About         return 0; - }101 //////////////////////////////////102[Email protected] ~/learn_code/design_pattern/20_chain]$.chain103 Director: Granting 12 days104 Manager: Granting 15 days the Group Leader: granting 5 days106Manager: 31 days, the time is too long, over the company rules

Design pattern--Responsibility Chain mode (c + + implementation)