KotlinInversionOfControlContainer

Example of how to make an Inversion of Control Container.

The Container can register Singletons, Factories and Scopes.

Example (Register - Resolve):

• You can't register a Factory or a Singleton given the simplicity of the container.
• Registering a Factory of a TestClass will generate two different TestClass instances every single time it's resolved.
• Registering a Singleton of a TestClass will generate the same instance every single time it's resolved.
• Registering a Scope is independent of registering a Factory or registering a Singleton. When scoping, you want to maintain some uniqueness according to the scopes. In this case, the uniqueness is given by a String. This means that if you register a Scope of a TestClass and scope it with "ABC", that instance will be the same to a future scoped instance as "ABC" but will be different to a scoped instance as "DEF".

Example (Dispose):

• When disposing a Factory/Singleton (you can't register both at the same time). That will leave the container in the same state than if it was never registered.
• When disposing a Scope, you can either dispose the rule itself (meaning that you won't be able to scope that TestClass anymore). This is the same behaviour than the previous disposing.
• When disposing a scoped instance, you can ask for a previous scoped instance (same unique String), and it will result into a new instance.
• When disposing all scoped instances, you will get into the same point than when registering the Scope itself.