mcs/class/System.Messaging/System.Messaging/MessageQueueTransaction.cs

   1 //\r
   2 // System.Messaging\r
   3 //\r
   4 // Authors:\r
   5 //      Peter Van Isacker (sclytrack@planetinternet.be)\r
   6 //      Rafael Teixeira   (rafaelteixeirabr@hotmail.com)\r
   7 //\r
   8 // (C) 2003 Peter Van Isacker\r
   9 //\r
  10
  11 //
  12 // Permission is hereby granted, free of charge, to any person obtaining
  13 // a copy of this software and associated documentation files (the
  14 // "Software"), to deal in the Software without restriction, including
  15 // without limitation the rights to use, copy, modify, merge, publish,
  16 // distribute, sublicense, and/or sell copies of the Software, and to
  17 // permit persons to whom the Software is furnished to do so, subject to
  18 // the following conditions:
  19 //
  20 // The above copyright notice and this permission notice shall be
  21 // included in all copies or substantial portions of the Software.
  22 //
  23 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  24 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  25 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  26 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  27 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  28 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  29 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  30 //
  31 using System;\r
  32 \r
  33 namespace System.Messaging \r
  34 {\r
  35 \r
  36         // TODO: have to comply with 'This type is safe for multithreaded operations'\r
  37         public class MessageQueueTransaction : IDisposable \r
  38         {\r
  39         // To avoid multiple disposals\r
  40         private bool disposed = false;\r
  41 \r
  42                 public MessageQueueTransaction()\r
  43                 {\r
  44                         status = MessageQueueTransactionStatus.Initialized;\r
  45                 }\r
  46                 \r
  47                 MessageQueueTransactionStatus status;\r
  48                 \r
  49                 public MessageQueueTransactionStatus Status \r
  50                 {\r
  51                         get { return status; }\r
  52                 }\r
  53                         \r
  54                 [MonoTODO]\r
  55                 public void Abort()\r
  56                 {\r
  57                         if (status != MessageQueueTransactionStatus.Pending)\r
  58                                 throw new InvalidOperationException();\r
  59                         status = MessageQueueTransactionStatus.Aborted;\r
  60                         throw new NotImplementedException();\r
  61                 }\r
  62                 \r
  63                 [MonoTODO]\r
  64                 public void Begin()\r
  65                 {\r
  66                         if (status != MessageQueueTransactionStatus.Initialized)\r
  67                                 throw new InvalidOperationException();\r
  68                         status = MessageQueueTransactionStatus.Pending;\r
  69                         throw new NotImplementedException();\r
  70                 }\r
  71                 \r
  72                 [MonoTODO]\r
  73                 public void Commit()\r
  74                 {\r
  75                         if (status != MessageQueueTransactionStatus.Pending)\r
  76                                 throw new InvalidOperationException();\r
  77                         status = MessageQueueTransactionStatus.Committed;\r
  78                         throw new NotImplementedException();\r
  79                 }\r
  80 \r
  81                 public virtual void Dispose()\r
  82                 {\r
  83                         if (status == MessageQueueTransactionStatus.Pending)\r
  84                                 Abort();\r
  85             // Do this only at the first time\r
  86             if (!this.disposed)\r
  87                                 Dispose(true);\r
  88             disposed = true;         \r
  89             // Take this object off the finalization queue \r
  90             GC.SuppressFinalize(this);\r
  91                 }\r
  92                 \r
  93                 [MonoTODO]\r
  94                 protected virtual void Dispose(bool disposing)\r
  95                 {\r
  96                         //if (disposing)\r
  97                         //  free managed resources, by calling dispose on them\r
  98 \r
  99                         // free external resources\r
 100                         throw new NotImplementedException();\r
 101                 }\r
 102                 \r
 103                 ~MessageQueueTransaction()\r
 104                 {\r
 105                         if (status == MessageQueueTransactionStatus.Pending)\r
 106                                 Abort();\r
 107                 if (!this.disposed)\r
 108                                 Dispose(false);\r
 109                 }\r
 110         }\r
 111 }\r