DenisBronx

data class SomeModel(val id: String, val name: String)

interface SomeModelRepository {
    suspend fun getSomeModels(): Answer<List<SomeModel>, String>
}

fun interface GetSomeModelUseCase : suspend () -> Answer<List<SomeModel>, String>

class SomeViewModel(private val getSomeModelUseCase: GetSomeModelUseCase) : ViewModel() {
    fun load() {

DenisBronx

data class SomeModel(val id: String, val name: String)

interface SomeModelRepository {
    suspend fun getSomeModels(): Answer<List<SomeModel>, String>
}

typealias GetSomeModelUseCase = suspend () -> Answer<List<SomeModel>, String>

class SomeViewModel(private val getSomeModelUseCase: GetSomeModelUseCase) : ViewModel() {
    fun load() {

DenisBronx

data class SomeModel(val id: String, val name: String)

interface SomeModelRepository {
    suspend fun getSomeModels(): Answer<List<SomeModel>, String>
}

interface GetSomeModelUseCase {
    suspend operator fun invoke(): Answer<List<SomeModel>, String>
}

DenisBronx

data class SomeModel(val id: String, val name: String)

interface SomeModelRepository {
    suspend fun getSomeModels(): Answer<List<SomeModel>, String>
}

class SomeViewModel(private val someModelRepository: SomeModelRepository) : ViewModel() {
    fun load() {
        viewModelScope.launch {
            val result = someModelRepository.getSomeModels()

DenisBronx

abstract class Employee {

    abstract fun getSalary(): String

    abstract fun getLineManager(): Employee

}

class SeniorAndroidDeveloper(
    private val leadAndroidDeveloper: LeadAndroidDeveloper

DenisBronx

class FakePreferences : SharedPreferences {

    private val map: MutableMap<String, Any?> = mutableMapOf()
    private val listeners: MutableList<SharedPreferences.OnSharedPreferenceChangeListener> = mutableListOf()

    override fun getAll(): MutableMap<String, *> = map
    override fun getString(key: String, default: String?): String? = map[key] as String? ?: default

    @Suppress("UNCHECKED_CAST")
    override fun getStringSet(key: String, default: MutableSet<String>?): MutableSet<String>? =

DenisBronx

interface GetTransactionsUseCase {

    fun execute(): Single<SimpleResult<List<Transaction>>>

}

DenisBronx

interface GetTransactionsUseCase {     
    operator fun invoke(): Single<SimpleResult<List<Transaction>>> 
}

class MyViewModel(
    private val getTransactionUseCase: GetTransactionUseCase
) {
    fun doSomething() {
        //No need for invoke
        getTransactionUseCase().subscribeBy { 

DenisBronx

class MyViewModel(
    private val getTransactionUseCase: GetTransactionUseCase
) {
    fun doSomething() {
        getTransactionUseCase.execute().subscribeBy { 
            //do something with the result
        }
    }
}

DenisBronx

interface GetTransactionsUseCase {

    operator fun invoke(): Single<SimpleResult<List<Transaction>>>

}