#if MYSQL_6_9 // Copyright (c) 2004, 2016 Oracle and/or its affiliates. All rights reserved. // // MySQL Connector/NET is licensed under the terms of the GPLv2 // , like most // MySQL Connectors. There are special exceptions to the terms and // conditions of the GPLv2 as it is applied to this software, see the // FLOSS License Exception // . // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published // by the Free Software Foundation; version 2 of the License. // // This program is distributed in the hope that it will be useful, but // WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY // or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License // for more details. // // You should have received a copy of the GNU General Public License along // with this program; if not, write to the Free Software Foundation, Inc., // 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA using System; using System.Data; namespace Externals.MySql.Data.MySqlClient { internal sealed partial class MySqlTransaction : IDisposable { private IsolationLevel level; private MySqlConnection conn; private bool open; private bool disposed = false; internal MySqlTransaction(MySqlConnection c, IsolationLevel il) { conn = c; level = il; open = true; } #region Destructor ~MySqlTransaction() { Dispose(false); } #endregion #region Properties /// /// Gets the object associated with the transaction, or a null reference (Nothing in Visual Basic) if the transaction is no longer valid. /// /// The object associated with this transaction. /// /// A single application may have multiple database connections, each /// with zero or more transactions. This property enables you to /// determine the connection object associated with a particular /// transaction created by . /// public new MySqlConnection Connection { get { return conn; } } /// /// Specifies the for this transaction. /// /// /// The for this transaction. The default is ReadCommitted. /// /// /// Parallel transactions are not supported. Therefore, the IsolationLevel /// applies to the entire transaction. /// public override IsolationLevel IsolationLevel { get { return level; } } #endregion public new void Dispose() { Dispose(true); GC.SuppressFinalize(this); } protected override void Dispose(bool disposing) { if (disposed) return; base.Dispose(disposing); if (disposing) { if ((conn != null && conn.State == ConnectionState.Open || conn.SoftClosed) && open) Rollback(); } disposed = true; } public override void Commit() { if (conn == null || (conn.State != ConnectionState.Open && !conn.SoftClosed)) throw new InvalidOperationException("Connection must be valid and open to commit transaction"); if (!open) throw new InvalidOperationException("Transaction has already been committed or is not pending"); MySqlCommand cmd = new MySqlCommand("COMMIT", conn); cmd.ExecuteNonQuery(); open = false; } public override void Rollback() { if (conn == null || (conn.State != ConnectionState.Open && !conn.SoftClosed)) throw new InvalidOperationException("Connection must be valid and open to rollback transaction"); if (!open) throw new InvalidOperationException("Transaction has already been rolled back or is not pending"); MySqlCommand cmd = new MySqlCommand("ROLLBACK", conn); cmd.ExecuteNonQuery(); open = false; } } } #endif