StructureMap 2.5 和内部实现者

Question

在下面的示例中，是否有可能让这些东西工作（强制 Objectfactory 创建实例（如 Activator）），

所有内容都放置在单个程序集

public interface IUnitOfWorkFactory
{
    IUnitOfWork Create();
}

internal class NHUnitOfWorkFactory : IUnitOfWorkFactory
{
    public IUnitOfWork Create()
    {
        ////  do needed stuff
    }
}

引导中：

ObjectFactory.Configure(x =>
{
    x.ForRequesedType<IUnitOfWorkFactory>.TheDefaultIsConcreteType<NHUnitOfWorkFactory>();
}); 

用法：

IUnitOfWorkFactory factory = ObjectFactory.GetInstance<IUnitOfWorkFactory>();

我的结果：

Porktal.Core.Tests.UnitOfWorkTests.Can_Start_Unit_of_Work : StructureMap.StructureMapException : StructureMap Exception Code:  207
Internal exception while creating Instance 'Porktal.Core.Data.NH.NHUnitOfWorkFactory, Porktal.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' of PluginType Porktal.Core.Data.IUnitOfWorkFactory.  Check the inner exception for more details.
---- System.MethodAccessException : Porktal.Core.Data.NH.NHUnitOfWorkFactory..ctor()
Stack Trace:
   at StructureMap.Pipeline.ConfiguredInstanceBase`1.StructureMap.Pipeline.IConfiguredInstance.Build(Type pluginType, BuildSession session, InstanceBuilder builder)
   at StructureMap.Pipeline.ConfiguredInstanceBase`1.build(Type pluginType, BuildSession session)
   at StructureMap.Pipeline.Instance.createRawObject(Type pluginType, BuildSession session)
   at StructureMap.Pipeline.Instance.Build(Type pluginType, BuildSession session)
   at StructureMap.Pipeline.BuildPolicy.Build(BuildSession buildSession, Type pluginType, Instance instance)
   at StructureMap.InstanceFactory.Build(BuildSession session, Instance instance)
   at StructureMap.BuildSession.CreateInstance(Type pluginType, Instance instance)
   at StructureMap.BuildSession.b__0(Type t)
   at StructureMap.Util.Cache`2.get_Item(KEY key)
   at StructureMap.BuildSession.CreateInstance(Type pluginType)
   at StructureMap.Container.GetInstance(Type pluginType)
   at StructureMap.Container.GetInstance[T]()
   at StructureMap.ObjectFactory.GetInstance[PLUGINTYPE]()
   at Porktal.Core.Bootstraper.Bootstrap() in D:\Porktal\Porktal.Core\Bootstraper.cs:line 20
   at Porktal.Core.Tests.UnitOfWorkTests.Can_Start_Unit_of_Work() in D:\Porktal\Porktal.Core.Tests\UnitOfWorkTests.cs:line 11
----- Inner Stack Trace -----
   at PorktalCoreDataNHNHUnitOfWorkFactoryInstanceBuilder44203c8113d44053be045df4db28c3dc.BuildInstance(IConfiguredInstance , BuildSession )
   at StructureMap.Pipeline.ConfiguredInstanceBase`1.StructureMap.Pipeline.IConfiguredInstance.Build(Type pluginType, BuildSession session, InstanceBuilder builder)

Answer 1

你有两个选择。您可以将 NHUnitOfWorkFactory 公开（首选）。

或者，您可以将构造内部类的代码以 lambda 的形式放入程序集中（可以访问内部成员），并将其传递给 StructureMap：

ObjectFactory.Configure(x => {
  x.ForRequestedType<IUnitOfWorkFactory>()
   .TheDefault.Is.ConstructedBy(() => new NHUnitOfWorkFactory())
});

较新版本的 StructureMap 的等效项是：

ObjectFactory.Configure(x => {
  x.For<IUnitOfWorkFactory>().Use(() => new NHUnitOfWorkFactory())
});

Answer 2

我还没有验证这一点，但是使 NHUnitOfWorkFactory 程序集的内部结构对 StructureMap 程序集可见可能会成功。

您可以在 AssemblyInfo 中使用 InternalsVisibleTo 属性班级。