You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

1125 lines
35 KiB

// Copyright ?2004, 2014, Oracle and/or its affiliates. All rights reserved.
//
// MySQL Connector/NET is licensed under the terms of the GPLv2
// <http://www.gnu.org/licenses/old-licenses/gpl-2.0.html>, 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
// <http://www.mysql.com/about/legal/licensing/foss-exception.html>.
//
// 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
#if MYSQL_6_9
using System;
using System.Data;
using System.Data.Common;
using System.ComponentModel;
using System.Collections.Generic;
#if MYSQL_6_9
using System.Threading.Tasks;
using System.Threading;
#endif
namespace Externals.MySql.Data.MySqlClient
{
[System.Drawing.ToolboxBitmap(typeof(MySqlDataAdapter), "MySqlClient.resources.dataadapter.bmp")]
[System.ComponentModel.DesignerCategory("Code")]
[Designer("Externals.MySql.Data.MySqlClient.Design.MySqlDataAdapterDesigner,MySqlClient.Design")]
internal sealed class MySqlDataAdapter : DbDataAdapter, IDbDataAdapter, IDataAdapter, ICloneable
{
private bool loadingDefaults;
private int updateBatchSize;
List<IDbCommand> commandBatch;
/// <summary>
/// Occurs during Update before a command is executed against the data source. The attempt to update is made, so the event fires.
/// </summary>
public event MySqlRowUpdatingEventHandler RowUpdating;
/// <summary>
/// Occurs during Update after a command is executed against the data source. The attempt to update is made, so the event fires.
/// </summary>
public event MySqlRowUpdatedEventHandler RowUpdated;
public MySqlDataAdapter()
{
loadingDefaults = true;
updateBatchSize = 1;
}
public MySqlDataAdapter(MySqlCommand selectCommand)
: this()
{
SelectCommand = selectCommand;
}
public MySqlDataAdapter(string selectCommandText, MySqlConnection connection)
: this()
{
SelectCommand = new MySqlCommand(selectCommandText, connection);
}
public MySqlDataAdapter(string selectCommandText, string selectConnString)
: this()
{
SelectCommand = new MySqlCommand(selectCommandText,
new MySqlConnection(selectConnString));
}
#region Properties
[Description("Used during Update for deleted rows in Dataset.")]
public new MySqlCommand DeleteCommand
{
get { return (MySqlCommand)base.DeleteCommand; }
set { base.DeleteCommand = value; }
}
[Description("Used during Update for new rows in Dataset.")]
public new MySqlCommand InsertCommand
{
get { return (MySqlCommand)base.InsertCommand; }
set { base.InsertCommand = value; }
}
[Description("Used during Fill/FillSchema")]
[Category("Fill")]
public new MySqlCommand SelectCommand
{
get { return (MySqlCommand)base.SelectCommand; }
set { base.SelectCommand = value; }
}
[Description("Used during Update for modified rows in Dataset.")]
public new MySqlCommand UpdateCommand
{
get { return (MySqlCommand)base.UpdateCommand; }
set { base.UpdateCommand = value; }
}
internal bool LoadDefaults
{
get { return loadingDefaults; }
set { loadingDefaults = value; }
}
#endregion
/// <summary>
/// Open connection if it was closed.
/// Necessary to workaround "connection must be open and valid" error
/// with batched updates.
/// </summary>
/// <param name="state">Row state</param>
/// <param name="openedConnections"> list of opened connections
/// If connection is opened by this function, the list is updated
/// </param>
/// <returns>true if connection was opened</returns>
private void OpenConnectionIfClosed(DataRowState state,
List<MySqlConnection> openedConnections)
{
MySqlCommand cmd = null;
switch (state)
{
case DataRowState.Added:
cmd = InsertCommand;
break;
case DataRowState.Deleted:
cmd = DeleteCommand;
break;
case DataRowState.Modified:
cmd = UpdateCommand;
break;
default:
return;
}
if (cmd != null && cmd.Connection != null &&
cmd.Connection.connectionState == ConnectionState.Closed)
{
cmd.Connection.Open();
openedConnections.Add(cmd.Connection);
}
}
protected override int Update(DataRow[] dataRows, DataTableMapping tableMapping)
{
List<MySqlConnection> connectionsOpened = new List<MySqlConnection>();
try
{
// Open connections for insert/update/update commands, if
// connections are closed.
foreach (DataRow row in dataRows)
{
OpenConnectionIfClosed(row.RowState, connectionsOpened);
}
int ret = base.Update(dataRows, tableMapping);
return ret;
}
finally
{
foreach (MySqlConnection c in connectionsOpened)
c.Close();
}
}
#region Batching Support
public override int UpdateBatchSize
{
get { return updateBatchSize; }
set { updateBatchSize = value; }
}
protected override void InitializeBatching()
{
commandBatch = new List<IDbCommand>();
}
protected override int AddToBatch(IDbCommand command)
{
// the first time each command is asked to be batched, we ask
// that command to prepare its batchable command text. We only want
// to do this one time for each command
MySqlCommand commandToBatch = (MySqlCommand)command;
if (commandToBatch.BatchableCommandText == null)
commandToBatch.GetCommandTextForBatching();
IDbCommand cloneCommand = (IDbCommand)((ICloneable)command).Clone();
commandBatch.Add(cloneCommand);
return commandBatch.Count - 1;
}
protected override int ExecuteBatch()
{
int recordsAffected = 0;
int index = 0;
while (index < commandBatch.Count)
{
MySqlCommand cmd = (MySqlCommand)commandBatch[index++];
for (int index2 = index; index2 < commandBatch.Count; index2++, index++)
{
MySqlCommand cmd2 = (MySqlCommand)commandBatch[index2];
if (cmd2.BatchableCommandText == null ||
cmd2.CommandText != cmd.CommandText) break;
cmd.AddToBatch(cmd2);
}
recordsAffected += cmd.ExecuteNonQuery();
}
return recordsAffected;
}
protected override void ClearBatch()
{
if (commandBatch.Count > 0)
{
MySqlCommand cmd = (MySqlCommand)commandBatch[0];
if (cmd.Batch != null)
cmd.Batch.Clear();
}
commandBatch.Clear();
}
protected override void TerminateBatching()
{
ClearBatch();
commandBatch = null;
}
protected override IDataParameter GetBatchedParameter(int commandIdentifier, int parameterIndex)
{
return (IDataParameter)commandBatch[commandIdentifier].Parameters[parameterIndex];
}
#endregion
/// <summary>
/// Overridden. See <see cref="DbDataAdapter.CreateRowUpdatedEvent"/>.
/// </summary>
/// <param name="dataRow"></param>
/// <param name="command"></param>
/// <param name="statementType"></param>
/// <param name="tableMapping"></param>
/// <returns></returns>
override protected RowUpdatedEventArgs CreateRowUpdatedEvent(DataRow dataRow, IDbCommand command, StatementType statementType, DataTableMapping tableMapping)
{
return new MySqlRowUpdatedEventArgs(dataRow, command, statementType, tableMapping);
}
/// <summary>
/// Overridden. See <see cref="DbDataAdapter.CreateRowUpdatingEvent"/>.
/// </summary>
/// <param name="dataRow"></param>
/// <param name="command"></param>
/// <param name="statementType"></param>
/// <param name="tableMapping"></param>
/// <returns></returns>
override protected RowUpdatingEventArgs CreateRowUpdatingEvent(DataRow dataRow, IDbCommand command, StatementType statementType, DataTableMapping tableMapping)
{
return new MySqlRowUpdatingEventArgs(dataRow, command, statementType, tableMapping);
}
/// <summary>
/// Overridden. Raises the RowUpdating event.
/// </summary>
/// <param name="value">A MySqlRowUpdatingEventArgs that contains the event data.</param>
override protected void OnRowUpdating(RowUpdatingEventArgs value)
{
if (RowUpdating != null)
RowUpdating(this, (value as MySqlRowUpdatingEventArgs));
}
/// <summary>
/// Overridden. Raises the RowUpdated event.
/// </summary>
/// <param name="value">A MySqlRowUpdatedEventArgs that contains the event data. </param>
override protected void OnRowUpdated(RowUpdatedEventArgs value)
{
if (RowUpdated != null)
RowUpdated(this, (value as MySqlRowUpdatedEventArgs));
}
#if MYSQL_6_9
#region Async
#region Fill
/// <summary>
/// Async version of Fill
/// </summary>
/// <param name="dataSet">Dataset to use</param>
/// <returns>int</returns>
public Task<int> FillAsync(DataSet dataSet)
{
return FillAsync(dataSet, CancellationToken.None);
}
public Task<int> FillAsync(DataSet dataSet, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var fillResult = base.Fill(dataSet);
result.SetResult(fillResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of Fill
/// </summary>
/// <param name="dataTable">Datatable to use</param>
/// <returns>int</returns>
public Task<int> FillAsync(DataTable dataTable)
{
return FillAsync(dataTable, CancellationToken.None);
}
public Task<int> FillAsync(DataTable dataTable, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var fillResult = base.Fill(dataTable);
result.SetResult(fillResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of Fill
/// </summary>
/// <param name="dataSet">DataSet to use</param>
/// <param name="srcTable">Source table</param>
/// <returns>int</returns>
public Task<int> FillAsync(DataSet dataSet, string srcTable)
{
return FillAsync(dataSet, srcTable, CancellationToken.None);
}
public Task<int> FillAsync(DataSet dataSet, string srcTable, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var fillResult = base.Fill(dataSet, srcTable);
result.SetResult(fillResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of Fill
/// </summary>
/// <param name="dataTable">Datatable to use</param>
/// <param name="dataReader">DataReader to use</param>
/// <returns>int</returns>
public Task<int> FillAsync(DataTable dataTable, IDataReader dataReader)
{
return FillAsync(dataTable, dataReader, CancellationToken.None);
}
public Task<int> FillAsync(DataTable dataTable, IDataReader dataReader, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var fillResult = base.Fill(dataTable, dataReader);
result.SetResult(fillResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of Fill
/// </summary>
/// <param name="dataTable">DataTable to use</param>
/// <param name="command">DbCommand to use</param>
/// <param name="behavior">Command Behavior</param>
/// <returns>int</returns>
public Task<int> FillAsync(DataTable dataTable, IDbCommand command, CommandBehavior behavior)
{
return FillAsync(dataTable, command, behavior, CancellationToken.None);
}
public Task<int> FillAsync(DataTable dataTable, IDbCommand command, CommandBehavior behavior, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var fillResult = base.Fill(dataTable, command, behavior);
result.SetResult(fillResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of Fill
/// </summary>
/// <param name="startRecord">Start record</param>
/// <param name="maxRecords">Max records</param>
/// <param name="dataTables">DataTable[] to use</param>
/// <returns>int</returns>
public Task<int> FillAsync(int startRecord, int maxRecords, params DataTable[] dataTables)
{
return FillAsync(startRecord, maxRecords, CancellationToken.None, dataTables);
}
public Task<int> FillAsync(int startRecord, int maxRecords, CancellationToken cancellationToken, params DataTable[] dataTables)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var fillResult = base.Fill(startRecord, maxRecords, dataTables);
result.SetResult(fillResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of Fill
/// </summary>
/// <param name="dataSet">DataSet to use</param>
/// <param name="startRecord">Start record</param>
/// <param name="maxRecords">Max records</param>
/// <param name="srcTable">Source table</param>
/// <returns>int</returns>
public Task<int> FillAsync(DataSet dataSet, int startRecord, int maxRecords, string srcTable)
{
return FillAsync(dataSet, startRecord, maxRecords, srcTable, CancellationToken.None);
}
public Task<int> FillAsync(DataSet dataSet, int startRecord, int maxRecords, string srcTable, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var fillResult = base.Fill(dataSet, startRecord, maxRecords, srcTable);
result.SetResult(fillResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of Fill
/// </summary>
/// <param name="dataSet">DataSet to use</param>
/// <param name="srcTable">Source table</param>
/// <param name="dataReader">DataReader to use</param>
/// <param name="startRecord">Start record</param>
/// <param name="maxRecords">Max records</param>
/// <returns></returns>
public Task<int> FillAsync(DataSet dataSet, string srcTable, IDataReader dataReader, int startRecord, int maxRecords)
{
return FillAsync(dataSet, srcTable, dataReader, startRecord, maxRecords, CancellationToken.None);
}
public Task<int> FillAsync(DataSet dataSet, string srcTable, IDataReader dataReader, int startRecord, int maxRecords, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var fillResult = base.Fill(dataSet, srcTable, dataReader, startRecord, maxRecords);
result.SetResult(fillResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of Fill
/// </summary>
/// <param name="dataTables">DataTable[] to use</param>
/// <param name="startRecord">Start record</param>
/// <param name="maxRecords">Max records</param>
/// <param name="command">DbCommand to use</param>
/// <param name="behavior">Command Behavior</param>
/// <returns></returns>
public Task<int> FillAsync(DataTable[] dataTables, int startRecord, int maxRecords, IDbCommand command, CommandBehavior behavior)
{
return FillAsync(dataTables, startRecord, maxRecords, command, behavior, CancellationToken.None);
}
public Task<int> FillAsync(DataTable[] dataTables, int startRecord, int maxRecords, IDbCommand command, CommandBehavior behavior, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var fillResult = base.Fill(dataTables, startRecord, maxRecords, command, behavior);
result.SetResult(fillResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of Fill
/// </summary>
/// <param name="dataSet">DataSet to use</param>
/// <param name="startRecord">Start record</param>
/// <param name="maxRecords">Max records</param>
/// <param name="srcTable">Source table</param>
/// <param name="command">DbCommand to use</param>
/// <param name="behavior">Command Behavior</param>
/// <returns></returns>
public Task<int> FillAsync(DataSet dataSet, int startRecord, int maxRecords, string srcTable, IDbCommand command, CommandBehavior behavior)
{
return FillAsync(dataSet, startRecord, maxRecords, srcTable, command, behavior, CancellationToken.None);
}
public Task<int> FillAsync(DataSet dataSet, int startRecord, int maxRecords, string srcTable, IDbCommand command, CommandBehavior behavior, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var fillResult = base.Fill(dataSet, startRecord, maxRecords, srcTable, command, behavior);
result.SetResult(fillResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
#endregion
#region FillSchema
/// <summary>
/// Async version of FillSchema
/// </summary>
/// <param name="dataSet">DataSet to use</param>
/// <param name="schemaType">Schema Type</param>
/// <returns>DataTable[]</returns>
public Task<DataTable[]> FillSchemaAsync(DataSet dataSet, SchemaType schemaType)
{
return FillSchemaAsync(dataSet, schemaType, CancellationToken.None);
}
public Task<DataTable[]> FillSchemaAsync(DataSet dataSet, SchemaType schemaType, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<DataTable[]>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var schemaResult = base.FillSchema(dataSet, schemaType);
result.SetResult(schemaResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of FillSchema
/// </summary>
/// <param name="dataSet">DataSet to use</param>
/// <param name="schemaType">Schema Type</param>
/// <param name="srcTable">Source Table</param>
/// <returns>DataTable[]</returns>
public Task<DataTable[]> FillSchemaAsync(DataSet dataSet, SchemaType schemaType, string srcTable)
{
return FillSchemaAsync(dataSet, schemaType, srcTable, CancellationToken.None);
}
public Task<DataTable[]> FillSchemaAsync(DataSet dataSet, SchemaType schemaType, string srcTable, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<DataTable[]>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var schemaResult = base.FillSchema(dataSet, schemaType, srcTable);
result.SetResult(schemaResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of FillSchema
/// </summary>
/// <param name="dataSet">DataSet to use</param>
/// <param name="schemaType">Schema Type</param>
/// <param name="srcTable">Source Table</param>
/// <param name="dataReader">DataReader to use</param>
/// <returns>DataTable[]</returns>
public Task<DataTable[]> FillSchemaAsync(DataSet dataSet, SchemaType schemaType, string srcTable, IDataReader dataReader)
{
return FillSchemaAsync(dataSet, schemaType, srcTable, dataReader, CancellationToken.None);
}
public Task<DataTable[]> FillSchemaAsync(DataSet dataSet, SchemaType schemaType, string srcTable, IDataReader dataReader, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<DataTable[]>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var schemaResult = base.FillSchema(dataSet, schemaType, srcTable, dataReader);
result.SetResult(schemaResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of FillSchema
/// </summary>
/// <param name="dataSet">DataSet to use</param>
/// <param name="schemaType">Schema Type</param>
/// <param name="command">DBCommand to use</param>
/// <param name="srcTable">Source Table</param>
/// <param name="behavior">Command Behavior</param>
/// <returns>DataTable[]</returns>
public Task<DataTable[]> FillSchemaAsync(DataSet dataSet, SchemaType schemaType, IDbCommand command, string srcTable, CommandBehavior behavior)
{
return FillSchemaAsync(dataSet, schemaType, command, srcTable, behavior, CancellationToken.None);
}
public Task<DataTable[]> FillSchemaAsync(DataSet dataSet, SchemaType schemaType, IDbCommand command, string srcTable, CommandBehavior behavior, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<DataTable[]>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var schemaResult = base.FillSchema(dataSet, schemaType, command, srcTable, behavior);
result.SetResult(schemaResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of FillSchema
/// </summary>
/// <param name="dataTable">DataTable to use</param>
/// <param name="schemaType">Schema Type</param>
/// <returns>DataTable</returns>
public Task<DataTable> FillSchemaAsync(DataTable dataTable, SchemaType schemaType)
{
return FillSchemaAsync(dataTable, schemaType, CancellationToken.None);
}
public Task<DataTable> FillSchemaAsync(DataTable dataTable, SchemaType schemaType, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<DataTable>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var schemaResult = base.FillSchema(dataTable, schemaType);
result.SetResult(schemaResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of FillSchema
/// </summary>
/// <param name="dataTable">DataTable to use</param>
/// <param name="schemaType">Schema Type</param>
/// <param name="dataReader">DataReader to use</param>
/// <returns>DataTable</returns>
public Task<DataTable> FillSchemaAsync(DataTable dataTable, SchemaType schemaType, IDataReader dataReader)
{
return FillSchemaAsync(dataTable, schemaType, dataReader, CancellationToken.None);
}
public Task<DataTable> FillSchemaAsync(DataTable dataTable, SchemaType schemaType, IDataReader dataReader, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<DataTable>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var schemaResult = base.FillSchema(dataTable, schemaType, dataReader);
result.SetResult(schemaResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of FillSchema
/// </summary>
/// <param name="dataTable">DataTable to use</param>
/// <param name="schemaType">Schema Type</param>
/// <param name="command">DBCommand to use</param>
/// <param name="behavior">Command Behavior</param>
/// <returns>DataTable</returns>
public Task<DataTable> FillSchemaAsync(DataTable dataTable, SchemaType schemaType, IDbCommand command, CommandBehavior behavior)
{
return FillSchemaAsync(dataTable, schemaType, command, behavior, CancellationToken.None);
}
public Task<DataTable> FillSchemaAsync(DataTable dataTable, SchemaType schemaType, IDbCommand command, CommandBehavior behavior, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<DataTable>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var schemaResult = base.FillSchema(dataTable, schemaType, command, behavior);
result.SetResult(schemaResult);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
#endregion
#region Update
/// <summary>
/// Async version of Update
/// </summary>
/// <param name="dataRows">DataRow[] to use</param>
/// <returns>int</returns>
public Task<int> UpdateAsync(DataRow[] dataRows)
{
return UpdateAsync(dataRows, CancellationToken.None);
}
public Task<int> UpdateAsync(DataRow[] dataRows, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var update = base.Update(dataRows);
result.SetResult(update);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of Update
/// </summary>
/// <param name="dataSet">DataSet to use</param>
/// <returns>int</returns>
public Task<int> UpdateAsync(DataSet dataSet)
{
return UpdateAsync(dataSet, CancellationToken.None);
}
public Task<int> UpdateAsync(DataSet dataSet, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var update = base.Update(dataSet);
result.SetResult(update);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of Update
/// </summary>
/// <param name="dataTable">DataTable to use</param>
/// <returns>int</returns>
public Task<int> UpdateAsync(DataTable dataTable)
{
return UpdateAsync(dataTable, CancellationToken.None);
}
public Task<int> UpdateAsync(DataTable dataTable, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var update = base.Update(dataTable);
result.SetResult(update);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of Update
/// </summary>
/// <param name="dataRows">DataRow[] to use</param>
/// <param name="tableMapping">Data Table Mapping</param>
/// <returns>int</returns>
public Task<int> UpdateAsync(DataRow[] dataRows, DataTableMapping tableMapping)
{
return UpdateAsync(dataRows, tableMapping, CancellationToken.None);
}
public Task<int> UpdateAsync(DataRow[] dataRows, DataTableMapping tableMapping, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var update = base.Update(dataRows, tableMapping);
result.SetResult(update);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
/// <summary>
/// Async version of Update
/// </summary>
/// <param name="dataSet">DataSet to use</param>
/// <param name="srcTable">Source Table</param>
/// <returns></returns>
public Task<int> UpdateAsync(DataSet dataSet, string srcTable)
{
return UpdateAsync(dataSet, srcTable, CancellationToken.None);
}
public Task<int> UpdateAsync(DataSet dataSet, string srcTable, CancellationToken cancellationToken)
{
var result = new TaskCompletionSource<int>();
if (cancellationToken == CancellationToken.None || !cancellationToken.IsCancellationRequested)
{
try
{
var update = base.Update(dataSet, srcTable);
result.SetResult(update);
}
catch (Exception ex)
{
result.SetException(ex);
}
}
else
{
result.SetCanceled();
}
return result.Task;
}
#endregion
#endregion
#endif
}
/// <summary>
/// Represents the method that will handle the <see cref="MySqlDataAdapter.RowUpdating"/> event of a <see cref="MySqlDataAdapter"/>.
/// </summary>
internal delegate void MySqlRowUpdatingEventHandler(object sender, MySqlRowUpdatingEventArgs e);
/// <summary>
/// Represents the method that will handle the <see cref="MySqlDataAdapter.RowUpdated"/> event of a <see cref="MySqlDataAdapter"/>.
/// </summary>
internal delegate void MySqlRowUpdatedEventHandler(object sender, MySqlRowUpdatedEventArgs e);
/// <summary>
/// Provides data for the RowUpdating event. This class cannot be inherited.
/// </summary>
internal sealed class MySqlRowUpdatingEventArgs : RowUpdatingEventArgs
{
/// <summary>
/// Initializes a new instance of the MySqlRowUpdatingEventArgs class.
/// </summary>
/// <param name="row">The <see cref="DataRow"/> to
/// <see cref="DbDataAdapter.Update(DataSet)"/>.</param>
/// <param name="command">The <see cref="IDbCommand"/> to execute during <see cref="DbDataAdapter.Update(DataSet)"/>.</param>
/// <param name="statementType">One of the <see cref="StatementType"/> values that specifies the type of query executed.</param>
/// <param name="tableMapping">The <see cref="DataTableMapping"/> sent through an <see cref="DbDataAdapter.Update(DataSet)"/>.</param>
public MySqlRowUpdatingEventArgs(DataRow row, IDbCommand command, StatementType statementType, DataTableMapping tableMapping)
: base(row, command, statementType, tableMapping)
{
}
/// <summary>
/// Gets or sets the MySqlCommand to execute when performing the Update.
/// </summary>
new public MySqlCommand Command
{
get { return (MySqlCommand)base.Command; }
set { base.Command = value; }
}
}
/// <summary>
/// Provides data for the RowUpdated event. This class cannot be inherited.
/// </summary>
internal sealed class MySqlRowUpdatedEventArgs : RowUpdatedEventArgs
{
/// <summary>
/// Initializes a new instance of the MySqlRowUpdatedEventArgs class.
/// </summary>
/// <param name="row">The <see cref="DataRow"/> sent through an <see cref="DbDataAdapter.Update(DataSet)"/>.</param>
/// <param name="command">The <see cref="IDbCommand"/> executed when <see cref="DbDataAdapter.Update(DataSet)"/> is called.</param>
/// <param name="statementType">One of the <see cref="StatementType"/> values that specifies the type of query executed.</param>
/// <param name="tableMapping">The <see cref="DataTableMapping"/> sent through an <see cref="DbDataAdapter.Update(DataSet)"/>.</param>
public MySqlRowUpdatedEventArgs(DataRow row, IDbCommand command, StatementType statementType, DataTableMapping tableMapping)
: base(row, command, statementType, tableMapping)
{
}
/// <summary>
/// Gets or sets the MySqlCommand executed when Update is called.
/// </summary>
new public MySqlCommand Command
{
get { return (MySqlCommand)base.Command; }
}
}
}
#endif