Add the ability to retrieve all the instances without non initialised lazy singletons

Kodein-DI version 6.4.1

Hi, I have a use case where I want to retrieve all AutoCloseable from the container, however, without creating lazy instances which haven’t been created yet.

My current code looks like it:

direct.allInstances<AutoCloseable>().forEach {
  it.close()
} 

The problem here is that it triggers creation of lazy instances, here, only to close them…

If there is a way to do it with current API then I would ask for help. If not then, please, consider it as feature request.

[romainbsl]

Hi, no need, we will use this issue to follow the possible feature request.

[Koriit]

@romainbsl I disagree. I believe there is value in this and I have 2 issues with using Scopes here:

• Scoping your definitions introduce additional scope-induced complexity to your definitions
• Built-in scopes require values to implement ScopeCloseable (src, doc)

Second problem can be resolved by creating my own Scope but yet again this introduces additional complexity.

My use case is just cleaning up on application close. I think this is a good practice(…) which library such as Kodein-DI would do good in helping spreading. It feels unreasonable to introduce “Scopes” to my application just to do proper cleanup. 😦

It can be generalised to retrieving initialised instances. I think there should be more use cases for this in the wild.

I ask you to reconsider.