class RoomRepository(
    private val database: RoomDatabase //actual room database
): Repository {

    override fun getFooByType(type: Int): Maybe<List<Item>> {
        return database.fooDao()
            .getFooByType(type)
            .map { names ->
                names.map { name -> Item(name) }
            }
            .subscribeOn(Schedulers.io())
    }
}