generics_CreatePersonDB_using_ifelse.go

func CreatePersonDB(persondbtype string, person Person) error {
	var db PersonDB
	if persondbtype == "local" {
		db = new(LocalDatabase)
	} else if persondbtype == "in-memory" {
		db = new(InMemoryDatabase)
	} else {
		return fmt.Errorf("persondbtype not supported :%s", persondbtype)
	}
	db.save(person)
	return nil
}

func main() {
	person := Person{
		ID:   101,
		Name: "John D",
	}
	CreatePersonDB("local", person)
}