IoC demo coding steps:

1. Explain existing code first (what it does) ask what's wrong with it?
  - Not object oriented.
  - No separation of concerns.
  - No encapsulation
  - Breaks single responsibility principle
  - We can't use any of this again (violates DRY)
  
2. Break out ReportRepository (remember to make them class level members)

3. Break out ReportSender

4. Break out Logger

  - Now we have separation of concerns.
  - We are obeying the single responsibility principle.
  - we can reuse a lot of the code.
  BUT
  - Reporter is not context independent. It takes it's three dependencies everywhere.
  - Reporter breaks the Open-Closed Principle.
  - We can't test reporter
  
  HOW DO WE FIX THIS?
  Dependency Injection
  
5. Change Reporter to use Dependency Injection. REMOVE LOGGING. Use Linq Where clause to filter Reports
  - This is Dependency Injection
  
6. Now we can write a test
  - DI is the most important pattern in OO
  - DI is the most important concept to take away from this talk.
  
7. We can change the way reporter works. Substitute ReportTweeter
  - Open Closed Principle: we didn't have to change any existing code (including our tests)
  - We can change the behaviour of our program merely by composing components.
  
  BUT WHAT ABOUT THE WIRE-UP CODE?
  
8. Introduce Windsor to wire up existing components
  - Show basic fluent configuration.
  - Show name based configuration and resolution.
  - Show how easy it is to replace different senders.
  
9. Lifestyles
  - demonstrate Transient, Singleton.
  - explain PerWebRequest, Pooled, PerThread

10. Instance registration.
  - point out that it can't take part in dependency resolution.

10. Disposal
  - explain now non-disposable instances have no reference and can be garbage collected.
  - demonstrate how chains of disposable transient instances are disposed.
  - demonstrate how singleton instances are disposed when container is disposed.
  
10. XML Configuration
  - including passing simple string properties
  - show mixing XML and fluent config.

10. Show decorators by re-introducing logger.

Generics

Factories

Facilities

Suteki Shop
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- Show how the windsor instance is only referenced once.
- Show multi-tenancy