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add Strategy pattern
1 parent 9f43976 commit 87ad823

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‎Behavioral/Strategy/AddStrategy.cs

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namespace Strategy {
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public class AddStrategy : IStrategy {
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public int Execute(int a, int b) {
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return a + b;
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}
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}
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}

‎Behavioral/Strategy/Client.cs

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using System;
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namespace Strategy {
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class Client {
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static void Main(string[] args) {
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Context context;
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// Three contexts following different strategies
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context = new Context(new AddStrategy());
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var resultA = context.ExecuteStrategy(3, 4);
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Console.WriteLine(resultA);
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context = new Context(new SubstractStrategy());
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var resultB = context.ExecuteStrategy(3, 4);
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Console.WriteLine(resultB);
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context = new Context(new MultiplyStrategy());
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var resultC = context.ExecuteStrategy(3, 4);
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Console.WriteLine(resultC);
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Console.ReadKey();
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}
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}
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}

‎Behavioral/Strategy/Context.cs

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namespace Strategy {
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public class Context {
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private readonly IStrategy _strategy;
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public Context(IStrategy strategy) {
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this._strategy = strategy;
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}
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public int ExecuteStrategy(int a, int b) {
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return this._strategy.Execute(a, b);
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}
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}
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}

‎Behavioral/Strategy/IStrategy.cs

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namespace Strategy {
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public interface IStrategy {
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int Execute(int a, int b);
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}
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}

‎Behavioral/Strategy/MultiplyStrategy.cs

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namespace Strategy {
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public class MultiplyStrategy : IStrategy {
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public int Execute(int a, int b) {
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return a * b;
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}
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}
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}

‎Behavioral/Strategy/Properties/AssemblyInfo.cs

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using System.Reflection;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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// General Information about an assembly is controlled through the following
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// set of attributes. Change these attribute values to modify the information
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// associated with an assembly.
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[assembly: AssemblyTitle("Strategy")]
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[assembly: AssemblyDescription("")]
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[assembly: AssemblyConfiguration("")]
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[assembly: AssemblyCompany("")]
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[assembly: AssemblyProduct("Strategy")]
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[assembly: AssemblyCopyright("Copyright © 2012")]
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[assembly: AssemblyTrademark("")]
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[assembly: AssemblyCulture("")]
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// Setting ComVisible to false makes the types in this assembly not visible
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// to COM components. If you need to access a type in this assembly from
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// COM, set the ComVisible attribute to true on that type.
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[assembly: ComVisible(false)]
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// The following GUID is for the ID of the typelib if this project is exposed to COM
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[assembly: Guid("2b3f684e-ce46-4d48-822a-1ed0326f7aa0")]
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// Version information for an assembly consists of the following four values:
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//
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// Major Version
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// Minor Version
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// Build Number
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// Revision
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//
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// You can specify all the values or you can default the Build and Revision Numbers
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// by using the '*' as shown below:
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// [assembly: AssemblyVersion("1.0.*")]
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[assembly: AssemblyVersion("1.0.0.0")]
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[assembly: AssemblyFileVersion("1.0.0.0")]

‎Behavioral/Strategy/Strategy.csproj

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<?xml version="1.0" encoding="utf-8"?>
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<Project ToolsVersion="4.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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<PropertyGroup>
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<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
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<Platform Condition=" '$(Platform)' == '' ">x86</Platform>
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<ProductVersion>8.0.30703</ProductVersion>
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<SchemaVersion>2.0</SchemaVersion>
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<ProjectGuid>{D728B5BD-4BE1-4B45-A0A3-08A878DAE254}</ProjectGuid>
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<OutputType>Exe</OutputType>
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<AppDesignerFolder>Properties</AppDesignerFolder>
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<RootNamespace>Strategy</RootNamespace>
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<AssemblyName>Strategy</AssemblyName>
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<TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
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<TargetFrameworkProfile>Client</TargetFrameworkProfile>
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<FileAlignment>512</FileAlignment>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
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<PlatformTarget>x86</PlatformTarget>
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<DebugSymbols>true</DebugSymbols>
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<DebugType>full</DebugType>
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<Optimize>false</Optimize>
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<OutputPath>bin\Debug\</OutputPath>
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<DefineConstants>DEBUG;TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
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<PlatformTarget>x86</PlatformTarget>
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<DebugType>pdbonly</DebugType>
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<Optimize>true</Optimize>
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<OutputPath>bin\Release\</OutputPath>
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<DefineConstants>TRACE</DefineConstants>
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<ErrorReport>prompt</ErrorReport>
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<WarningLevel>4</WarningLevel>
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</PropertyGroup>
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<PropertyGroup>
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<StartupObject>Strategy.Client</StartupObject>
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</PropertyGroup>
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<ItemGroup>
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<Reference Include="System" />
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<Reference Include="System.Core" />
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<Reference Include="System.Xml.Linq" />
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<Reference Include="System.Data.DataSetExtensions" />
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<Reference Include="Microsoft.CSharp" />
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<Reference Include="System.Data" />
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<Reference Include="System.Xml" />
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</ItemGroup>
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<ItemGroup>
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<Compile Include="AddStrategy.cs" />
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<Compile Include="Context.cs" />
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<Compile Include="IStrategy.cs" />
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<Compile Include="Client.cs" />
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<Compile Include="MultiplyStrategy.cs" />
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<Compile Include="Properties\AssemblyInfo.cs" />
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<Compile Include="SubstractStrategy.cs" />
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</ItemGroup>
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<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
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<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
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Other similar extension points exist, see Microsoft.Common.targets.
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<Target Name="BeforeBuild">
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</Target>
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<Target Name="AfterBuild">
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</Target>
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-->
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</Project>

‎Behavioral/Strategy/SubstractStrategy.cs

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namespace Strategy {
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public class SubstractStrategy : IStrategy {
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public int Execute(int a, int b) {
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return a - b;
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}
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}
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}

‎DesignPatterns.sln

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@@ -19,6 +19,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Observer", "Behavioral\Obse
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "State", "Behavioral\State\State.csproj", "{F214B483-E8BB-477D-807F-24F176B588D5}"
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EndProject
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Strategy", "Behavioral\Strategy\Strategy.csproj", "{D728B5BD-4BE1-4B45-A0A3-08A878DAE254}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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{F214B483-E8BB-477D-807F-24F176B588D5}.Release|Any CPU.ActiveCfg = Release|x86
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{F214B483-E8BB-477D-807F-24F176B588D5}.Release|x86.ActiveCfg = Release|x86
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{F214B483-E8BB-477D-807F-24F176B588D5}.Release|x86.Build.0 = Release|x86
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{D728B5BD-4BE1-4B45-A0A3-08A878DAE254}.Debug|Any CPU.ActiveCfg = Debug|x86
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{D728B5BD-4BE1-4B45-A0A3-08A878DAE254}.Debug|x86.ActiveCfg = Debug|x86
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{D728B5BD-4BE1-4B45-A0A3-08A878DAE254}.Debug|x86.Build.0 = Debug|x86
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{D728B5BD-4BE1-4B45-A0A3-08A878DAE254}.Release|Any CPU.ActiveCfg = Release|x86
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{D728B5BD-4BE1-4B45-A0A3-08A878DAE254}.Release|x86.ActiveCfg = Release|x86
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{D728B5BD-4BE1-4B45-A0A3-08A878DAE254}.Release|x86.Build.0 = Release|x86
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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{C404876C-B04B-451F-B159-2C0CF8CB861B} = {B3C3F0E2-50B6-450B-A161-F4500F4E681D}
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{2823F21D-D474-447D-9C8B-74B29D0D9B35} = {B3C3F0E2-50B6-450B-A161-F4500F4E681D}
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{F214B483-E8BB-477D-807F-24F176B588D5} = {B3C3F0E2-50B6-450B-A161-F4500F4E681D}
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{D728B5BD-4BE1-4B45-A0A3-08A878DAE254} = {B3C3F0E2-50B6-450B-A161-F4500F4E681D}
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EndGlobalSection
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EndGlobal

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