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NpgsqlDataAdapter.cs
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245 lines (217 loc) · 8.88 KB
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// created on 1/8/2002 at 23:02
//
// Npgsql.NpgsqlDataAdapter.cs
//
// Author:
// Francisco Jr. (fxjrlists@yahoo.com.br)
//
// Copyright (C) 2002 The Npgsql Development Team
// npgsql-general@gborg.postgresql.org
// http://gborg.postgresql.org/project/npgsql/projdisplay.php
//
//
// Permission to use, copy, modify, and distribute this software and its
// documentation for any purpose, without fee, and without a written
// agreement is hereby granted, provided that the above copyright notice
// and this paragraph and the following two paragraphs appear in all copies.
//
// IN NO EVENT SHALL THE NPGSQL DEVELOPMENT TEAM BE LIABLE TO ANY PARTY
// FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
// INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
// DOCUMENTATION, EVEN IF THE NPGSQL DEVELOPMENT TEAM HAS BEEN ADVISED OF
// THE POSSIBILITY OF SUCH DAMAGE.
//
// THE NPGSQL DEVELOPMENT TEAM SPECIFICALLY DISCLAIMS ANY WARRANTIES,
// INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
// ON AN "AS IS" BASIS, AND THE NPGSQL DEVELOPMENT TEAM HAS NO OBLIGATIONS
// TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
using System;
using System.Data;
using System.Data.Common;
using System.Reflection;
namespace Npgsql
{
/// <summary>
/// Represents the method that handles the <see cref="Npgsql.NpgsqlDataAdapter.RowUpdated">RowUpdated</see> events.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">A <see cref="NpgsqlRowUpdatedEventArgs">NpgsqlRowUpdatedEventArgs</see> that contains the event data.</param>
public delegate void NpgsqlRowUpdatedEventHandler(Object sender, NpgsqlRowUpdatedEventArgs e);
/// <summary>
/// Represents the method that handles the <see cref="Npgsql.NpgsqlDataAdapter.RowUpdating">RowUpdating</see> events.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">A <see cref="NpgsqlRowUpdatingEventArgs">NpgsqlRowUpdatingEventArgs</see> that contains the event data.</param>
public delegate void NpgsqlRowUpdatingEventHandler(Object sender, NpgsqlRowUpdatingEventArgs e);
/// <summary>
/// This class represents an adapter from many commands: select, update, insert and delete to fill <see cref="System.Data.DataSet">Datasets.</see>
/// </summary>
public sealed class NpgsqlDataAdapter : DbDataAdapter
{
// Log support
private static readonly String CLASSNAME = MethodBase.GetCurrentMethod().DeclaringType.Name;
/// <summary>
/// Row updated event.
/// </summary>
public event NpgsqlRowUpdatedEventHandler RowUpdated;
/// <summary>
/// Row updating event.
/// </summary>
public event NpgsqlRowUpdatingEventHandler RowUpdating;
/// <summary>
/// Default constructor.
/// </summary>
public NpgsqlDataAdapter()
{
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="selectCommand"></param>
public NpgsqlDataAdapter(NpgsqlCommand selectCommand)
{
NpgsqlEventLog.LogMethodEnter(LogLevel.Debug, CLASSNAME, CLASSNAME);
SelectCommand = selectCommand;
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="selectCommandText"></param>
/// <param name="selectConnection"></param>
public NpgsqlDataAdapter(String selectCommandText, NpgsqlConnection selectConnection)
: this(new NpgsqlCommand(selectCommandText, selectConnection))
{
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="selectCommandText"></param>
/// <param name="selectConnectionString"></param>
public NpgsqlDataAdapter(String selectCommandText, String selectConnectionString)
: this(selectCommandText, new NpgsqlConnection(selectConnectionString))
{
}
/// <summary>
/// Create row updated event.
/// </summary>
/// <param name="dataRow"></param>
/// <param name="command"></param>
/// <param name="statementType"></param>
/// <param name="tableMapping"></param>
/// <returns></returns>
protected override RowUpdatedEventArgs CreateRowUpdatedEvent(DataRow dataRow, IDbCommand command,
StatementType statementType,
DataTableMapping tableMapping)
{
NpgsqlEventLog.LogMethodEnter(LogLevel.Debug, CLASSNAME, "CreateRowUpdatedEvent");
return new NpgsqlRowUpdatedEventArgs(dataRow, command, statementType, tableMapping);
}
/// <summary>
/// Create row updating event.
/// </summary>
/// <param name="dataRow"></param>
/// <param name="command"></param>
/// <param name="statementType"></param>
/// <param name="tableMapping"></param>
/// <returns></returns>
protected override RowUpdatingEventArgs CreateRowUpdatingEvent(DataRow dataRow, IDbCommand command,
StatementType statementType,
DataTableMapping tableMapping)
{
NpgsqlEventLog.LogMethodEnter(LogLevel.Debug, CLASSNAME, "CreateRowUpdatingEvent");
return new NpgsqlRowUpdatingEventArgs(dataRow, command, statementType, tableMapping);
}
/// <summary>
/// Raise the RowUpdated event.
/// </summary>
/// <param name="value"></param>
protected override void OnRowUpdated(RowUpdatedEventArgs value)
{
NpgsqlEventLog.LogMethodEnter(LogLevel.Debug, CLASSNAME, "OnRowUpdated");
//base.OnRowUpdated(value);
if ((RowUpdated != null) && (value is NpgsqlRowUpdatedEventArgs))
{
RowUpdated(this, (NpgsqlRowUpdatedEventArgs) value);
}
}
/// <summary>
/// Raise the RowUpdating event.
/// </summary>
/// <param name="value"></param>
protected override void OnRowUpdating(RowUpdatingEventArgs value)
{
NpgsqlEventLog.LogMethodEnter(LogLevel.Debug, CLASSNAME, "OnRowUpdating");
if ((RowUpdating != null) && (value is NpgsqlRowUpdatingEventArgs))
{
RowUpdating(this, (NpgsqlRowUpdatingEventArgs) value);
}
}
/// <summary>
/// Delete command.
/// </summary>
public new NpgsqlCommand DeleteCommand
{
get
{
NpgsqlEventLog.LogPropertyGet(LogLevel.Debug, CLASSNAME, "NpgDataAdapter.DeleteCommand");
return (NpgsqlCommand)base.DeleteCommand;
}
set { base.DeleteCommand = value; }
}
/// <summary>
/// Select command.
/// </summary>
public new NpgsqlCommand SelectCommand
{
get
{
NpgsqlEventLog.LogPropertyGet(LogLevel.Debug, CLASSNAME, "NpgDataAdapter.SelectCommand");
return (NpgsqlCommand)base.SelectCommand;
}
set { base.SelectCommand = value; }
}
/// <summary>
/// Update command.
/// </summary>
public new NpgsqlCommand UpdateCommand
{
get
{
NpgsqlEventLog.LogPropertyGet(LogLevel.Debug, CLASSNAME, "NpgDataAdapter.UpdateCommand");
return (NpgsqlCommand)base.UpdateCommand;
}
set { base.UpdateCommand = value; }
}
/// <summary>
/// Insert command.
/// </summary>
public new NpgsqlCommand InsertCommand
{
get
{
NpgsqlEventLog.LogPropertyGet(LogLevel.Debug, CLASSNAME, "NpgDataAdapter.InsertCommand");
return (NpgsqlCommand)base.InsertCommand;
}
set { base.InsertCommand = value; }
}
}
}
#pragma warning disable 1591
public class NpgsqlRowUpdatingEventArgs : RowUpdatingEventArgs
{
public NpgsqlRowUpdatingEventArgs(DataRow dataRow, IDbCommand command, StatementType statementType,
DataTableMapping tableMapping)
: base(dataRow, command, statementType, tableMapping)
{
}
}
public class NpgsqlRowUpdatedEventArgs : RowUpdatedEventArgs
{
public NpgsqlRowUpdatedEventArgs(DataRow dataRow, IDbCommand command, StatementType statementType,
DataTableMapping tableMapping)
: base(dataRow, command, statementType, tableMapping)
{
}
}
#pragma warning restore 1591