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Di ppt
- 1. Inversion of control and Dependency Injection (What, Why and How?) Tejinder Singh Software Engineer 8284045404
- 2. Inversion of control is a pattern used for decoupling components and layers in the system. It is about getting freedom, more flexibility, and less dependency The pattern is implemented through injecting dependencies into a component when it is constructed.
- 3. Dependency Injection is a great way to reduce tight coupling between software components. It’s the best way to enable loose coupling, an important part of maintainable code. The benefits we can reap from loose coupling aren’t always immediately apparent, but they become visible over time, as the complexity of a code base grows.
- 4. The greatest benefit is that it encourages dependency free architecture. Your classes stand alone, and do not depend on a specific implementation (other than it's interface and requirements) Continue ……
- 5. Code becomes more reusable, testable and readable. When you test something, if it has a hard coded new in there, you can't easily replace it with a mocked object to feed it test data. Suppose you want to test that an object calculates a value correctly. Feeding it test data with known values makes it easier to test.
- 6. We can inject ◦ Controllers ◦ Views ◦ Constructors ◦ Filters
- 7. Unity (Microsoft Enterprise Library block) Ninject Castle Windsor Autofac StructureMap Spring.Net Etc…….
- 9. Thanks