(V) Adapter Mode-c++ Implementation

Transforms the interface of one class into another interface that the customer Wants. The adapter mode makes it possible for those classes that would otherwise not work together because of incompatible interfaces to work Together.

There are three types of roles in this mode:

1, Target: is an abstract class, it is the interface that the customer wants to use

2, the Adapter: the adapter is an existing abstract class or interface, need to be adapted

3. Adapter: the adapter is a class that inherits the target and contains a reference to the Adapter. Its role is to adapt the adaptation to the Target.

In this example, the Three-phase current is the target, now has a washing machine, can directly use Three-phase current, tv, can use two-phase current, now to adapt to the TV can directly use Three-phase Current. The implementation is as Follows:

(1) Target.h

1 #ifndef _target_h_2 #define_target_h_3#include <iostream>4#include <string>5 using namespacestd;6 //the goal (which is to fit into this, all use This)7 classthreeelectricoutlet{8  public:9     Virtual voidConnectelectriccurrent () =0;Ten  one }; a  - //the Adapter (cannot Use it now, adapt it to be used) - classtwoelectricoutlet{ the  public: -     Virtual voidConnectelectriccurrent () =0; - }; -  + //Adapter - classThreeelectricadapter: publicthreeelectricoutlet{ + Private: aTwoelectricoutlet *myoutlet; at  -  public: -Threeelectricadapter (twoelectricoutlet *outlet); -     voidConnectelectriccurrent ()Override; - }; -  in //Specific Objectives - classWash: publicthreeelectricoutlet{ to  public: + Wash (); -Wash (strings); the     voidConnectelectriccurrent ()Override; *  $ Private:Panax Notoginseng     stringname; -  the  + }; a  the //specifically adapted by + classTv: publictwoelectricoutlet{ -  public: $ Tv (); $Tv (strings); -     voidConnectelectriccurrent ()Override; - Private: the     stringname; - Wuyi }; the  -  wu  - #endif

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(2) Target.cpp

1#include"Target.h"2 3Threeelectricadapter::threeelectricadapter (twoelectricoutlet *Outlet)4 {5Myoutlet =outlet;6 }7 8 voidthreeelectricadapter::connectelectriccurrent ()9 {TenMyoutlet->connectelectriccurrent (); one } a  - Wash::wash () - { theName ="Washing Machine"; - } -Wash::wash (stringS) - { +Name =s; - } +  a voidwash::connectelectriccurrent () at { -cout << name <<"Begin Wash"<<endl; - } -  - TV::TV () - { inName ="TV"; - } to  +TV::TV (stringS) - { theName =s; * } $ Panax Notoginseng voidtv::connectelectriccurrent () - { thecout << name <<"begin play Video"<<endl; +}

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(3) AdapterTest.cpp

1#include"Target.h"2 3 intMain ()4 {5Threeelectricoutlet *outlet;//now the only targets that can be used are the others that will fit into this goal .6Wash *wash =NewWash ();//the washing machine is originally used three-phase electricity (that is, inherited Threeelectricoutlet)7Outlet =wash;8cout <<"use three electric:"<<endl;9Outlet->connectelectriccurrent ();Ten  oneTv *TV =NewTv ();//the TV can only use two-phase electricity and now it fits into a three-phase aThreeelectricadapter *adapter =NewThreeelectricadapter (tv); -Outlet =adapter; -cout <<"use three electric:"<<endl; theOutlet->connectelectriccurrent (); -     return 0; -}

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The key to the adapter pattern is to establish an adapter that inherits the target interface and contains a reference to the appropriate Person. It is also possible to adapt two-way, that is, using multiple inheritance, inheriting both the target and the ligand, and containing references to the target and the Ligand.

(V) Adapter Mode-c++ Implementation