/// <summary> /// Constructs the session for the given user and transaction to the /// given database. /// </summary> /// <param name="transaction">A transaction that handles the commands issued by /// the user during the session.</param> /// <param name="userName"></param> /// <seealso cref="ITransaction"/> public Session(ITransaction transaction, string userName) : base(transaction as IEventSource) { if (transaction == null) { throw new ArgumentNullException("transaction"); } if (String.IsNullOrEmpty(userName)) { throw new ArgumentNullException("userName"); } if (String.Equals(userName, User.SystemName, StringComparison.OrdinalIgnoreCase) || String.Equals(userName, User.PublicName, StringComparison.OrdinalIgnoreCase)) { throw new ArgumentException(String.Format("Cannot open a session for user '{0}'.", userName)); } Transaction = transaction; Context = transaction.Context.CreateSessionContext(); Context.RegisterInstance(this); Transaction.Context.Route <QueryEvent>(OnQueryCommand); Transaction.GetTableManager().AddInternalTables(new SessionTableContainer(this)); access = new SessionAccess(this); if (!transaction.Database.Sessions.Add(this)) { throw new InvalidOperationException("The session was already in the database session list"); } User = new User(this, userName); startedOn = DateTimeOffset.UtcNow; this.OnEvent(new SessionEvent(SessionEventType.Begin)); }
private void Dispose(bool disposing) { if (!disposed) { if (disposing) { try { Rollback(); } catch (Exception ex) { this.OnError(new Exception("Error while rolling back on Dispose", ex)); } finally { if (Context != null) { Context.Dispose(); } } } Context = null; access = null; disposed = true; } }