* @template TTransaction of SqlTransaction * * @extends SqlLink */ interface SqlConnection extends SqlLink { /** * @return TConfig The configuration used to create this connection. */ public function getConfig(): SqlConfig; /** * @return SqlTransactionIsolation Current transaction isolation used when beginning transactions on this connection. */ public function getTransactionIsolation(): SqlTransactionIsolation; /** * Sets the transaction isolation level for transactions began on this link. * * @see SqlLink::beginTransaction() */ public function setTransactionIsolation(SqlTransactionIsolation $isolation): void; }