inversion-of-control

问题 I have my code which makes a webservice Call based on type of request. To do that , I have following code; public class Client { IRequest request; public Client(string requestType) { request = new EnrolmentRequest(); if (requestType == "Enrol") { request.DoEnrolment(); } else if (requestType == "ReEnrol") { request.DoReEnrolment(); } else if (requestType == "DeleteEnrolment") { request.DeleteEnrolment(); } else if (requestType == "UpdateEnrolment") { request.UpdateEnrolment(); } } } So as per

问题 This question already has answers here : Closed 8 years ago . Possible Duplicate: Which .NET Dependency Injection frameworks are worth looking into? Which is the best IoC among StructureMap and Ninject? This should be merged with: Best injections frameworks 回答1: Depends on the situation. For small projects where you need a simple container I'd choose Ninject. I like the fact that it's small and lean. I dislike the attribute's but there are ways around that. For a big solution where you might

问题 In Ninject, declaring a binding in singleton scope means that the same object will be returned every time. There can only be one object, ever. What I would like is to return one object at a time. In other words: The first call to Get() instantiates a new object and returns it. Subsequent calls to Get() return the same instance. The object is disposed. The first call to Get() after the object was disposed instantiates a new/second object and returns that. Subsequent calls to Get() return the

问题 I'm getting the 'No parameterless constructor defined for this object' on my controller when the controller and its dependencies are being registered accordingly via (DI/IoC) pattern using Castle Windsor. Can someone take a look at the following and see my error because i can't see it. Code for registration on global.asax public class MyApplication : System.Web.HttpApplication { public MvcApplication() { this.container = new WindsorContainer().Install(new DependencyInstaller()); } protected

问题 I'd like to configure the Windsor container so that a single, singleton-style instance can provide two or more services through the container. I've found that using the same type in multiple component declarations (XML-based config) will result in an instance of that type being created to provide each component's service interface, which is not the behaviour I desire. For example: interface IA { } interface IB { } class AB : IA, IB { ... } I want the one instance of AB to provide both the IA

问题 I am brand new to IoC and thus have been following the examples provided by Jeffery Palermo in his posts at http://jeffreypalermo.com/blog/the-onion-architecture-part-1/ and in his book hosted here https://github.com/jeffreypalermo/mvc2inaction/tree/master/manuscript/Chapter23 Most important to note is that I am not using a pre-rolled IoC container, mostly because I want to understand all the moving parts. However, I am creating a windows service rather than an ASP.NET MVC webapp so I am

问题 I have TypeScript application and I'm using Inversify for IoC. I have a connection class: 'use strict'; import { injectable } from 'inversify'; import { createConnection, Connection } from "typeorm"; import { Photo, PhotoMetadata, Author, Album } from '../index'; @injectable() class DBConnectionManager { public createPGConnection(): Promise<Connection> { return createConnection({ driver: { type: "postgres", host: "host", port: 5432, username: "username", password: "password", database:

问题 I have an MVC3 application that is using Ninject and MvcSiteMapProvider. I have created this class which MvcSiteMapProvider uses to dynamically add nodes to my sitemap: public class PageNodeProvider : DynamicNodeProviderBase { public override IEnumerable<DynamicNode> GetDynamicNodeCollection() { // need to get repository instance var repository = // how do I get this??? foreach (var item in repository.GetItems()) { yield return MakeDynamicNode(item); } } } The MvcSiteMapProvider instantiates

问题 Getting this error in restlet: ForwardUIApplication ; Exception while instantiating the target server resource. java.lang.InstantiationException: me.unroll.forwardui.server.ForwardUIServer$UnsubscribeForwardUIResource And I know exactly why. It's because my constructor looks like this: public UnsubscribeForwardUIResource(MySQLConnectionPool connectionPool) { And Restlet accesses the resource like so: router.attach(Config.unsubscribeUriPattern(), UnsubscribeForwardUIResource.class); Problem is

问题 I have an MVC 3 site that uses IoC (Unity), and my model is generated w/ EF4 and POCOs. I am using an action filter to commit my UnitOfWork: public class UseUnitOfWorkAttribute : ActionFilterAttribute, IActionFilter { private readonly IUnitOfWork _unitOfWork; public UseUnitOfWorkAttribute() { _unitOfWork = IoCFactory.Instance.CurrentContainer.Resolve<IUnitOfWork>(); } void IActionFilter.OnActionExecuted(ActionExecutedContext filterContext) { _unitOfWork.Commit(); } void IActionFilter