What is the best way to implement a use case that doesn't have any params? about mvvmtemplate HOT 1 CLOSED

You could have use cases without the parent class(that doesn't have the param), like this:

class MyUseCase @Inject constructor(
    private val myRepo: MyRepo,
) {

    operator fun invoke(): Flowable<MyModel> =
        myRepo.getAllOfThem()

}

But in point of my view,

• To have a concise code
• Following the same pattern you follow for the other use cases that accept params

It is better to have a parent class for these kinds of use cases as well:

interface ParentUseCase<Type : Any> {

    operator fun invoke(params: Params): Single<Type>

}

and the usage:

class MyUseCase @Inject constructor(
    private val myRepo: MyRepo,
) : ParentUseCase<Flowable<MyModel> {

    override fun invoke(): Flowable<MyModel> =
        myRepo.getAllOfThem()

}

You could pass Nothing as well to avoid making the code complex and having too much abstraction in your code. If you have lots of abstraction classes, go this way.
A good code is

• Not a few abstractions
• Not too many abstractions
• Reuse what you have as much as you can until you realized you're mixing different logic (if-else)

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