There is no way to declare onClose callback for Koin declaration

[Pschsch]

Is your feature request related to a problem? Please describe. To declare onClose callback, I should decline from using koin annotations and use pure Koin DSL

Describe the solution you'd like Add annotation @OnCloseAction. It must b applied to object declaration with corresponding function. For example:

@OnCloseAction
object OnCloseAction {

    /*If there are no onClose function, throw an error*/
    fun onClose(value : Any?) {

    }

}

And in actual definition:

@[Single OnClose(action = OnCloseAction::class)]
class Definition {

}

OnCloseAction annotation could be also applied to whole module, so action will be executed for every module declaration

Describe alternatives you've considered Maybe there would be better solutions

Target Koin project koin-annotations

[arnaudgiuliani]

Yes, good point. It's not available yet.

We could also annotate a function to let call it on onClose, with a @OnClose from an annotated entity:

@Single
MySingle( val myDep : MyDep ) {

    @OnClose
    fun oncLose(){

    }
}

[alturkovic]

Is there any target version when this might be available?

[arnaudgiuliani]

for now it's a proposal, checking feasibility and impact on APIs. Seems doable for 1.4

[arnaudgiuliani]

perhaps duplication with #112