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NpgsqlDescribe.cs
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// created on 1/7/2003 at 20:48
// Npgsql.NpgsqlDescribe.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.IO;
using System.Text;
namespace Npgsql
{
/// <summary>
/// This class represents the Parse message sent to PostgreSQL
/// server.
/// </summary>
///
internal sealed class NpgsqlDescribe : ClientMessage
{
private readonly byte _whatToDescribe;
private readonly byte[] _bPortalName;
public NpgsqlDescribe(byte whatToDescribe, String portalName)
{
_whatToDescribe = whatToDescribe;
_bPortalName = BackendEncoding.UTF8Encoding.GetBytes(portalName);
}
public override void WriteToStream(Stream outputStream)
{
outputStream
.WriteBytes((byte)FrontEndMessageCode.Describe)
.WriteInt32(4 + 1 + _bPortalName.Length + 1)
.WriteBytes(_whatToDescribe)
.WriteBytesNullTerminated(_bPortalName);
}
}
}