Created
September 27, 2021 13:34
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Interface Injection
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| using System; | |
| namespace DependencyInjection | |
| { | |
| public interface IDependent | |
| { | |
| void DoSomething(); | |
| } | |
| public class Dependent1 : IDependent | |
| { | |
| public void DoSomething() | |
| { | |
| Console.WriteLine("Hello from Dependent1"); | |
| } | |
| } | |
| public class Dependent2 : IDependent | |
| { | |
| public void DoSomething() | |
| { | |
| Console.WriteLine("Hello from Dependent2"); | |
| } | |
| } | |
| public interface IInjectDependent | |
| { | |
| void InjectDependent(IDependent dependent); | |
| } | |
| public class MainClass : IInjectDependent | |
| { | |
| private IDependent _dependent; | |
| public void InjectDependent(IDependent dependent) | |
| { | |
| _dependent = dependent; | |
| } | |
| public void DoSomething() | |
| { | |
| _dependent.DoSomething(); | |
| } | |
| } | |
| internal static class Program | |
| { | |
| private static void Main() | |
| { | |
| // Get the correct dependency | |
| var dependency = GetCorrectDependency(); | |
| // Create class | |
| var mainClass = new MainClass(); | |
| //Inject the dependency | |
| mainClass.InjectDependent(dependency); | |
| mainClass.DoSomething(); | |
| Console.ReadLine(); | |
| } | |
| private static IDependent GetCorrectDependency() | |
| { | |
| return new Dependent1(); | |
| } | |
| } | |
| } |
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