Dependency Injection Containers

Applications based on the Prism Library are composite applications that potentially consist of many loosely coupled types and services. They need to interact to contribute content and receive notifications based on user actions. Because they are loosely coupled, they need a way to interact and communicate with one another to deliver the required business functionality. To tie together these various pieces, applications based on the Prism Library rely on a dependency injection container. Dependency injection containers reduce the dependency coupling between objects by providing a facility to instantiate instances of classes and manage their lifetime based on the configuration of the container. During the objects creation, the container injects any dependencies that the object requires into it. If those dependencies have not yet been created, the container creates and resolves their dependencies first. In some cases, the container itself is resolved as a dependency. For example, when using the Unity Application Block (Unity) as the container, modules have the container injected, so they can register their views and services with that container. Below you will find some resources that complement the information about this subject on the corresponding chapter in the Prism MSDN documentation.

Last edited May 4, 2011 at 4:42 PM by GuidoMaliandi, version 6

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