/// <summary>
/// Makes operations in the context use the underlying transaction
/// </summary>
/// <param name="transaction"> The transaction. </param>
public void UseTransaction(CqlBatchTransaction transaction)
{
if (transaction == null)
{
_currentTransaction = null;
_disposeTransaction = false;
return;
}
if (_currentTransaction != null)
throw new InvalidOperationException("Context is already bound to a transaction.");
if (transaction.Connection == null || transaction.Connection != Connection)
throw new ArgumentException("Transaction is not using the same connection as this context",
"transaction");
_currentTransaction = transaction;
_disposeTransaction = false;
}
/// <summary>
/// Initializes a new instance of the <see cref="CqlDatabaseTransaction"/> class.
/// </summary>
/// <param name="transaction">The transaction.</param>
/// <param name="connector">The database connector.</param>
/// <exception cref="System.ArgumentNullException">transaction can not be null.</exception>
internal CqlDatabaseTransaction(CqlBatchTransaction transaction, CqlDatabaseConnector connector)
{
this.Transaction = transaction ?? throw new ArgumentNullException(nameof(transaction), $"{nameof(transaction)} can not be null.");
this.Connector = connector;
}
/// <summary>
/// Begins a transaction on which all operations in this context are executed.
/// </summary>
/// <returns> </returns>
/// <exception cref="System.InvalidOperationException">This context is already bound to an transaction</exception>
public CqlBatchTransaction BeginTransaction()
{
if (_currentTransaction != null)
throw new InvalidOperationException("This context is already bound to a transaction");
var connection = Connection;
if (connection.State == ConnectionState.Closed)
connection.Open();
_currentTransaction = new CqlContextBatchTransaction(this, connection);
_disposeTransaction = true;
return _currentTransaction;
}
