C# (CSharp) Npgsql NpgsqlTransaction.Cancel示例

Cancel() private method

Cancel the transaction without telling the backend about it. This is used to make the transaction go away when closing a connection.

private Cancel ( ) : void
return	void

示例#1

 /// <summary>
 /// Used when a connection is closed
 /// </summary>
 public void Prepare()
 {
     NpgsqlEventLog.LogMethodEnter(LogLevel.Debug, CLASSNAME, "Prepare");
     if (_inTransaction)
     {
         // may not be null if Promote or Enlist is called first
         if (_callbacks == null)
         {
             _callbacks = new NpgsqlTransactionCallbacks(_connection);
         }
         _callbacks.PrepareTransaction();
         if (_npgsqlTx != null)
         {
             // cancel the NpgsqlTransaction since this will
             // be handled by a two phase commit.
             _npgsqlTx.Cancel();
             _npgsqlTx.Dispose();
             _npgsqlTx = null;
         }
     }
 }

示例#2

文件： NpgsqlPromotableSinglePhaseNotification.cs 项目： danbarua/Npgsql

 /// <summary>
 /// Used when a connection is closed
 /// </summary>
 public void Prepare()
 {
     _log.Debug("Prepare");
     if (_inTransaction)
     {
         // may not be null if Promote or Enlist is called first
         if (_callbacks == null)
         {
             _callbacks = new NpgsqlTransactionCallbacks(_connection);
         }
         _callbacks.PrepareTransaction();
         if (_npgsqlTx != null)
         {
             // cancel the NpgsqlTransaction since this will
             // be handled by a two phase commit.
             _npgsqlTx.Cancel();
             _npgsqlTx.Dispose();
             _npgsqlTx = null;
             _connection.PromotableLocalTransactionEnded();
         }
     }
 }

示例#3

 public void Enlist(Transaction tx)
 {
     NpgsqlEventLog.LogMethodEnter(LogLevel.Debug, CLASSNAME, "Enlist");
     if (tx != null)
     {
         _isolationLevel = tx.IsolationLevel;
         if (!tx.EnlistPromotableSinglePhase(this))
         {
             // must already have a durable resource
             // start transaction
             _npgsqlTx      = _connection.BeginTransaction(ConvertIsolationLevel(_isolationLevel));
             _inTransaction = true;
             _rm            = CreateResourceManager();
             _callbacks     = new NpgsqlTransactionCallbacks(_connection);
             _rm.Enlist(_callbacks, TransactionInterop.GetTransmitterPropagationToken(tx));
             // enlisted in distributed transaction
             // disconnect and cleanup local transaction
             _npgsqlTx.Cancel();
             _npgsqlTx.Dispose();
             _npgsqlTx = null;
         }
     }
 }

示例#4

文件： NpgsqlPromotableSinglePhaseNotification.cs 项目： Qorpent/Npgsql2

 public void Enlist(Transaction tx)
 {
     NpgsqlEventLog.LogMethodEnter(LogLevel.Debug, CLASSNAME, "Enlist");
     if (tx != null)
     {
         _isolationLevel = tx.IsolationLevel;
         if (!tx.EnlistPromotableSinglePhase(this))
         {
             // must already have a durable resource
             // start transaction
             _npgsqlTx = _connection.BeginTransaction(ConvertIsolationLevel(_isolationLevel));
             _inTransaction = true;
             _rm = CreateResourceManager();
             _callbacks = new NpgsqlTransactionCallbacks(_connection);
             _rm.Enlist(_callbacks, TransactionInterop.GetTransmitterPropagationToken(tx));
             // enlisted in distributed transaction
             // disconnect and cleanup local transaction
             _npgsqlTx.Cancel();
             _npgsqlTx.Dispose();
             _npgsqlTx = null;
         }
     }
 }