/// <summary>
/// Initializes a new instance of the <see cref="Transaction"/> class.
/// </summary>
///
/// <param name="session">The parent session that represents the communication channel to QLDB.</param>
/// <param name="txnId">Transaction identifier.</param>
/// <param name="logger">Logger to be used by this.</param>
internal Transaction(Session session, string txnId, ILogger logger)
{
this.session = session;
this.txnId = txnId;
this.logger = logger;
this.qldbHash = QldbHash.ToQldbHash(txnId);
}
/// <summary>
/// Calculate the QLDB hash from statement and parameters.
/// </summary>
///
/// <param name="seed">QLDB Hash.</param>
/// <param name="statement">PartiQL statement.</param>
/// <param name="parameters">Parameters to execute.</param>
///
/// <returns>QLDB hash.</returns>
internal static QldbHash Dot(QldbHash seed, string statement, List <IIonValue> parameters)
{
QldbHash statementHash = QldbHash.ToQldbHash(statement);
foreach (var ionValue in parameters)
{
statementHash = statementHash.Dot(QldbHash.ToQldbHash(ionValue));
}
return(seed.Dot(statementHash));
}