ioc-container

问题 I have a class that needs a dependency injecting. As the class is already an implementation of another abstraction, and its 'sibling' implementations may not share the same dependencies, I am attempting to use property injection and not constructor injection. (All these classes/interface names are just for illustrative purposes) My IProvider abstraction: public interface IProvider { void ProviderMethod(); } My IProvider implementation (with the IData dependency I want to inject) : public

问题 I use the RegisterInitializer method to inject properties in base types as follows: container.RegisterInitializer<BaseHandler>(handler => { handler.Context = container.GetInstance<HandlerContext>(); }); This works great, but the RegisterInitializer doesn't get fired on all registered types that inherit from BaseHandler. It doesn't seem to run when I call new myself: var url = ConfigurationManager.AppSettings["NotificationServiceUrl"]; container.Register<Handler<NotifyCustomerMessage>>(() =>

问题 I am using Castle Windsor to handle my Dependency Injection and it has been working great up until now. However, i am now trying to extend my project and add some additional libraries - im now struggling to figure the best way to leverage Castle. I currently have the following assemblies MyProject.Interfaces (contains IDBContext interface) MyProject.BusinessLogic (contains the Castle Windsor implementation) MyProject.DataAccess (contains implementation of IDBContext) I currently have an

问题 Using SimpleInjector I call container.Verify() at the end of my configuration, and get the diagnostics information in the debugger as described in the documentation. I would like to write that information to a log file. Is there a way access it programmatically or a way hook a logger or tracer into SimpleInjector? 回答1: Simple Injector 2.4 contains a diagnostic API (SimpleInjector.Diagnostics.dll) that allow you to query the container for diagnostic warnings. Using this API you can write

问题 Can somebody shine a little light for me? I've got my website all running using Windsor Castle. I have a controller factory and installers for controllers and services. All nice. Now I've just created a IDependencyResolver implementing class called WindsorDependencyResolver with a straigh-forward implementation: public class WindsorDependencyResolver : System.Web.Mvc.IDependencyResolver { private readonly IKernel _kernel; public WindsorDependencyResolver (IKernel kernel) { _kernel = kernel; }

问题 My case it is Ninject 2. // normal explicit dispose using (var dc = new EFContext) { } But sometimes I need to keep the context longer or between function calls. So I want to control this behavior through IoC scope. // if i use this way. how do i make sure object is disposed. var dc = ninject.Get<IContext>() // i cannot use this since the scope can change to singleton. right ?? using (var dc = ninject.Get<IContext>()) { } Sample scopes Container.Bind<IContext>().To<EFContext>()

问题 Say I had a business object library which was using IoC to implement a data access library. Where should I define the Data Access Interface? Which library does it belong? Or should it be in a separate library just for interfaces? 回答1: I would define the interfaces within the business domain. Then the implementations of the interfaces would be in a library that references the business domain (and is referenced by whatever the application context is, or by an IoC library which is referenced by

问题 In Funq and probably most other IoC containers I can simply do this to configure a type: container.Register<ISomeThing>(c => new SomeThing()); How could I quickly extend MEF (or use existing MEF functionality) to do the same without using attributes. Here is how I thought I could do it: var container = new CompositionContainer(); var batch = new CompositionBatch(); batch.AddExport<ISomeThing>(() => new SomeThing()); batch.AddExportedValue(batch); container.Compose(batch); With this extension

问题 Just wondering if anyone had this scenario with Unity(as an IoC container) where the class has two injected dependencies(interfaces) where one dependency can be null. For example: public MyServiceDll(IRepository repository, ICanBeNullDependency canBeNullDependency = null) { _repository = repository; _canBeNullDependency = canBeNullDependency; } ICanBeNullDependency is from another assembly. MyServiceDll is another assembly. MyServiceDll is referenced by web api and injected its interface in

问题 In the project I'm working on I have a StructureMap registry for the main web project and another registry for my integration tests. During some of the tests I wire up the web project's registry, so that I can get objects out of the container for testing. In one case I want to be able to replace a default concrete type from the web registry with one in the test registry. Is this possible? How do you do it? 回答1: In a similar situation I created a NestedContainer ( Container.GetNestedContainer(