inversion-of-control

Which .NET Dependency Injection frameworks are worth looking into? [closed]

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edit (not by the author): There is a comprehensive list of IoC frameworks available at https://github.com/quozd/awesome-dotnet/blob/master/README.md#ioc: Castle Windsor – Castle Windsor is best of breed, mature Inversion of Control container available for .NET and Silverlight Unity – Lightweight extensible dependency injection container with support for constructor, property, and method call injection Autofac – An addictive … Read more

Why is IoC / DI not common in Python?

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I don’t actually think that DI/IoC are that uncommon in Python. What is uncommon, however, are DI/IoC frameworks/containers. Think about it: what does a DI container do? It allows you to wire together independent components into a complete application … … at runtime. We have names for “wiring together” and “at runtime”: scripting dynamic So, … Read more

Why do I need an IoC container as opposed to straightforward DI code? [closed]

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Wow, can’t believe that Joel would favor this: var svc = new ShippingService(new ProductLocator(), new PricingService(), new InventoryService(), new TrackingRepository(new ConfigProvider()), new Logger(new EmailLogger(new ConfigProvider()))); over this: var svc = IoC.Resolve<IShippingService>(); Many folks don’t realize that your dependencies chain can become nested, and it quickly becomes unwieldy to wire them up manually. Even with factories, … Read more

SqlException from Entity Framework – New transaction is not allowed because there are other threads running in the session

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After much pulling out of hair I discovered that the foreach loops were the culprits. What needs to happen is to call EF but return it into an IList<T> of that target type then loop on the IList<T>. Example: IList<Client> clientList = from a in _dbFeed.Client.Include(“Auto”) select a; foreach (RivWorks.Model.NegotiationAutos.Client client in clientList) { var … Read more

Inversion of Control vs Dependency Injection

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The Inversion-of-Control (IoC) pattern, is about providing any kind of callback (which “implements” and/or controls reaction), instead of acting ourselves directly (in other words, inversion and/or redirecting control to the external handler/controller). For example, rather than having the application call the implementations provided by a library (also known as toolkit), a framework calls the implementations provided by the application. The Dependency-Injection (DI) pattern is a … Read more

What is Inversion of Control?

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The Inversion-of-Control (IoC) pattern, is about providing any kind of callback (which controls reaction), instead of acting ourself directly (in other words, inversion and/or redirecting control to external handler/controller). The Dependency-Injection (DI) pattern is a more specific version of IoC pattern, and is all about removing dependencies from your code. Every DI implementation can be … Read more

What is a JavaBean exactly?

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A JavaBean is just a standard. It is a regular Java class, except it follows certain conventions: All properties are private (use getters/setters) A public no-argument constructor Implements Serializable. That’s it. It’s just a convention. Lots of libraries depend on it though. With respect to Serializable, from the API documentation: Serializability of a class is … Read more

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