@Entity
class CCExchanges : HashMap<String, CCTradePairs>() {


    @PrimaryKey
    var id: Int = 0


    fun getExchangeList(): ArrayList<String> {
        return ArrayList(keys)
    }

    fun getTradePairs(exchange: String): CCTradePairs {
        return get(exchange) ?: CCTradePairs()
    }

    override fun toString(): String {
        return "CCExchanges(id=$id) ${super.toString()}"
    }
}

@Insert(onConflict = OnConflictStrategy.REPLACE)
fun insert(ccExchanges: CCExchanges)