dependency-injection

问题 I need to use some kind of @Input() decorator for my ngComponentOutlet . But seems that Angular hasn't this feature. Instead, all things that I want to pass inside my outlet components should be provided via Injector . And it's fine if I want to initiate the thing I want provide to inside injectable class. But I need to dive deeper and provide some kind of observable variable ( Observeble<number> type for example) at creation Injector step. But I can't to get observable variable inside outlet

问题 First of all, this is not opinionated question and I have read most of related questions in SO. I am seeking advise if below implemented solution is the right approach/method. I have read many tutorials on how to implement DI in a jersey-based webapp and most of them recommend that its a must to create a beans.xml in WEB-INF/* in order to enable CDI but, I wonder if using Jersey's AbstractBinder achieve the same result? I have a jersey-webapp that has the following in web.xml <servlet>

问题 I am building an ASP.NET Core 2 MVC application. A lot of the time I need to make use of dependencies to validate user input. I want my validation methods to be unit testable, and I want to be able to inject mocked dependencies into them. This is something I have previously done in MVC5 to great success but cannot work out the ASP.NET Core 2 equivalent. This is how I would do it in MVC5: // the view model to be validated public class MyViewModel { public string Username { get; set; } } // the

问题 After searching and trying too many things i'm stuck in some what seems like an easy problem. Below is my module which is reponsible for injecting retrofit. @Module public class NetworkingModule { @Provides public Retrofit providesRetrofit() { Gson gson = new GsonBuilder().setFieldNamingPolicy(FieldNamingPolicy.UPPER_CAMEL_CASE).create(); Retrofit retrofit = new Retrofit.Builder() .baseUrl(Constants.BASE_URL) .addConverterFactory(GsonConverterFactory.create(gson)) .build(); return retrofit; }

问题 I'm using Simple Injector to inject dependencies into my objects via Constructor Injection. For a particular set of objects (all derived from a common abstract base class) I inject a factory instead of the concrete object so that I can determine at run-time which derived instance should be injected. The factory is registered with the container as a singleton, as are the derived instances. After registering all of my objects with the DI Container I call the Container.Verify() method to verify

问题 I created a web application using ASP.Net MVC 3 and EF 4.1, and I am using the UnitOfWork pattern, but nothing is getting committed to the database. All this is quite new to me, and I don't know where to start to resolve this issue. I based myself on this post to create my web application: http://weblogs.asp.net/shijuvarghese/archive/2011/01/06/developing-web-apps-using-asp-net-mvc-3-razor-and-ef-code-first-part-1.aspx The final code, which can be obtained here also has a service layer and

问题 I am trying to use ninject to.. well do what ninject does.. Basically the injection isnt happening. In my code below I am creating the Kernel in my "test" and expecting an IDrinkCan implementation to somehow get into my CokeComsumer class. I think i have missed something here.. since the IDrinkCan is null when I put a break point on the CokeConsumer constructor. using System; using System.Collections.Generic; using System.Linq; using System.Text; using Ninject; using Ninject.Modules; using

问题 I want to use the Dependency Injection pattern in C#, and I want to have the logics as separated as possible in namespaces. Question In which namespace should the interface of the consumed class be? Motivation of the question First let's do some "normal" case. A book-case to be used as the basis for the second part of the explanation. Then, the "real-life" case, which arises the question. Book case Let's assume the coder is Alice and that she uses Alice as a top-level name in the namespaces

问题 We are fully annotation driven and do not use XML files for spring configuration. Default scope of spring beans is singleton which many developers forget and end up in creating beans that should be differently scoped. Added to the complexity of problems mix and match of various scoped beans. Is there any maven plugin that can check if any class that has @Component annotation also has @Scope annotation and fail the build if its missing. This will force developers to think about the scope and

问题 Having trouble figuring out how to manage contextual binding in the scenario where two classes have the same underlying interface dependency, but each class ctor's parameter is named differently. Pseudo code below to demonstrate my situation: interface IThing { } public class Thing1 : IThing { public Thing1(string fileCode) { } } public class Thing2 : IThing { public Thing2(string fileCode) { } } interface IThingFactory { IThing CreateThing(string fileCode); } interface IDependentThing { }