StructureMap：如何設置的生命週期與ConnectImplementationsToTypesClosing

Question

連接在我的註冊表類型我有

Scan(scanner => 
     { 
      scanner.AssemblyContainingType<EmailValidation>(); 
      scanner.ConnectImplementationsToTypesClosing(typeof(IValidation<>)); 
     }); 

那我該怎麼做，這些都爲單身界定？

另外，除了這個問題之外，是否有任何理由不將無定義的所有東西都定義爲在StructureMap中註冊的單例對象？

Answer 1

凱文的回答對版本2.5.4及更高版本是正確的。在當前StructureMap幹線（和2.5.5+被釋放時），你現在可以做的：

Scan(scanner => 
{ 
    scanner.AssemblyContainingType<EmailValidation>(); 
    scanner.ConnectImplementationsToTypesClosing(typeof(IValidation<>)) 
      .OnAddedPluginTypes(t => t.Singleton()); 
}); 

Answer 2

程序集掃描器方法ConnectImplementationsToTypesClosing使用IRegistrationConvention完成工作。爲此，我複製並更新了StructureMap通用連接掃描程序，以獲取範圍。接下來，我創建了一個方便的裝配掃描儀擴展方法，以用作語法糖來連接它。

public class GenericConnectionScannerWithScope : IRegistrationConvention 
{ 
    private readonly Type _openType; 
    private readonly InstanceScope _instanceScope; 

    public GenericConnectionScannerWithScope(Type openType, InstanceScope instanceScope) 
    { 
     _openType = openType; 
     _instanceScope = instanceScope; 

     if (!_openType.IsOpenGeneric()) 
     { 
      throw new ApplicationException("This scanning convention can only be used with open generic types"); 
     } 
    } 

    public void Process(Type type, Registry registry) 
    { 
     Type interfaceType = type.FindInterfaceThatCloses(_openType); 
     if (interfaceType != null) 
     { 
      registry.For(interfaceType).LifecycleIs(_instanceScope).Add(type); 
     } 
    } 
} 

public static class StructureMapConfigurationExtensions 
{ 
    public static void ConnectImplementationsToSingletonTypesClosing(this IAssemblyScanner assemblyScanner, Type openGenericType) 
    { 
     assemblyScanner.With(new GenericConnectionScannerWithScope(openGenericType, InstanceScope.Singleton)); 
    } 
} 

下面是相應的設置代碼。

Scan(scanner => 
    { 
     scanner.ConnectImplementationsToSingletonTypesClosing(typeof(IValidation<>)); 
    }); 

希望這會有所幫助。