StructureMap：如何设置的生命周期与ConnectImplementationsToTypesClosing

Question

连接在我的注册表类型我有

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

那我该怎么做，这些都为单身界定？

另外，除了这个问题之外，是否有任何理由不将无定义的所有东西都定义为在StructureMap中注册的单例对象？

Answer 1

凯文的回答对版本2.5.4及更高版本是正确的。在当前StructureMap干线（和2.5.5+被释放时），你现在可以做的：

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

Answer 2

程序集扫描器方法ConnectImplementationsToTypesClosing使用IRegistrationConvention完成工作。为此，我复制并更新了StructureMap通用连接扫描程序，以获取范围。接下来，我创建了一个方便的装配扫描仪扩展方法，以用作语法糖来连接它。

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)); 
    } 
} 

下面是相应的设置代码。

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

希望这会有所帮助。