mcs/class/Npgsql/Npgsql/NpgsqlRow.cs

   1 // created on 4/3/2003 at 19:45
   2
   3 // Npgsql.NpgsqlBinaryRow.cs
   4 //
   5 // Author:
   6 //      Francisco Jr. (fxjrlists@yahoo.com.br)
   7 //
   8 //      Copyright (C) 2002 The Npgsql Development Team
   9 //      npgsql-general@gborg.postgresql.org
  10 //      http://gborg.postgresql.org/project/npgsql/projdisplay.php
  11 //
  12 // This library is free software; you can redistribute it and/or
  13 // modify it under the terms of the GNU Lesser General Public
  14 // License as published by the Free Software Foundation; either
  15 // version 2.1 of the License, or (at your option) any later version.
  16 //
  17 // This library is distributed in the hope that it will be useful,
  18 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20 // Lesser General Public License for more details.
  21 //
  22 // You should have received a copy of the GNU Lesser General Public
  23 // License along with this library; if not, write to the Free Software
  24 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  25
  26 using System;
  27 using System.Collections;
  28 using System.IO;
  29 using System.Text;
  30 using System.Net;
  31 using NpgsqlTypes;
  32
  33
  34 namespace Npgsql
  35 {
  36
  37     /// <summary>
  38     /// This is the abstract base class for NpgsqlAsciiRow and NpgsqlBinaryRow.
  39     /// </summary>
  40     internal abstract class NpgsqlRow
  41     {
  42         // Logging related values
  43         private static readonly String CLASSNAME = "NpgsqlRow";
  44
  45         protected ArrayList                  data;
  46         protected NpgsqlRowDescription       row_desc;
  47         protected ProtocolVersion            protocol_version;
  48
  49         public NpgsqlRow(NpgsqlRowDescription rowDesc, ProtocolVersion protocolVersion)
  50         {
  51             data = new ArrayList();
  52             row_desc = rowDesc;
  53             protocol_version = protocolVersion;
  54         }
  55
  56         public virtual void ReadFromStream(Stream inputStream, Encoding encoding)
  57         {
  58           throw new NotImplementedException("Abstract");
  59         }
  60
  61         /// <summary>
  62         /// Provide access to the fields in this row.
  63         /// </summary>
  64         public virtual Object this[Int32 index]
  65         {
  66             get
  67             {
  68                 NpgsqlEventLog.LogIndexerGet(LogLevel.Debug, CLASSNAME, index);
  69                 if ((index < 0) || (index >= row_desc.NumFields)) {
  70                     throw new IndexOutOfRangeException("this[] index value");
  71                 }
  72
  73                 return data[index];
  74             }
  75         }
  76     }
  77
  78 }