mcs/class/IBM.Data.DB2/IBM.Data.DB2/DB2ErrorCollection.cs

   1 \r
   2 //\r
   3 // Permission is hereby granted, free of charge, to any person obtaining\r
   4 // a copy of this software and associated documentation files (the\r
   5 // "Software"), to deal in the Software without restriction, including\r
   6 // without limitation the rights to use, copy, modify, merge, publish,\r
   7 // distribute, sublicense, and/or sell copies of the Software, and to\r
   8 // permit persons to whom the Software is furnished to do so, subject to\r
   9 // the following conditions:\r
  10 // \r
  11 // The above copyright notice and this permission notice shall be\r
  12 // included in all copies or substantial portions of the Software.\r
  13 // \r
  14 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,\r
  15 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\r
  16 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND\r
  17 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE\r
  18 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION\r
  19 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION\r
  20 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r
  21 //\r
  22 using System;\r
  23 using System.Collections;\r
  24 using System.Text;\r
  25 \r
  26 namespace IBM.Data.DB2\r
  27 {\r
  28         [Serializable()]\r
  29         public class DB2ErrorCollection : CollectionBase \r
  30         {\r
  31         \r
  32                 public DB2ErrorCollection(short sqlHandleType, IntPtr sqlHandle) \r
  33                 {\r
  34                         StringBuilder sqlState = new StringBuilder(10);\r
  35                         StringBuilder errorMessage = new StringBuilder(1025);\r
  36 \r
  37                         int sqlReturn;\r
  38                         short recNum=1;\r
  39 \r
  40                         do\r
  41                         {\r
  42                                 int nativeError;\r
  43                                 short errorMessageLength;\r
  44                                 sqlReturn = DB2CLIWrapper.SQLGetDiagRec(sqlHandleType, sqlHandle, recNum++, sqlState, out nativeError, errorMessage, errorMessage.Capacity - 1, out errorMessageLength);\r
  45                                 if(sqlReturn == 0)\r
  46                                 {\r
  47                                         Add(new DB2Error(errorMessage.ToString(), sqlState.ToString(), nativeError));\r
  48                                 }\r
  49                         }\r
  50                         while (sqlReturn == 0);\r
  51                 }\r
  52         \r
  53                 public DB2Error this[int index] \r
  54                 {\r
  55                         get \r
  56                         {\r
  57                                 return ((DB2Error)(List[index]));\r
  58                         }\r
  59                 }\r
  60                 internal int Add(DB2Error value) \r
  61                 {\r
  62                         return List.Add(value);\r
  63                 }\r
  64         \r
  65                 public void CopyTo(DB2Error[] array, int index) \r
  66                 {\r
  67                         List.CopyTo(array, index);\r
  68                 }\r
  69         \r
  70                 /// <summary>\r
  71                 ///    <para>Returns an enumerator that can iterate through \r
  72                 ///       the <see cref='d.DB2ErrorCollection'/> .</para>\r
  73                 /// </summary>\r
  74                 /// <returns><para>None.</para></returns>\r
  75                 /// <seealso cref='System.Collections.IEnumerator'/>\r
  76                 public new DB2ErrorEnumerator GetEnumerator() \r
  77                 {\r
  78                         return new DB2ErrorEnumerator(this);\r
  79                 }\r
  80         \r
  81                 public class DB2ErrorEnumerator : object, IEnumerator \r
  82                 {\r
  83             \r
  84                         private IEnumerator baseEnumerator;\r
  85             \r
  86                         private IEnumerable temp;\r
  87             \r
  88                         public DB2ErrorEnumerator(DB2ErrorCollection mappings) \r
  89                         {\r
  90                                 this.temp = ((IEnumerable)(mappings));\r
  91                                 this.baseEnumerator = temp.GetEnumerator();\r
  92                         }\r
  93             \r
  94                         public DB2Error Current \r
  95                         {\r
  96                                 get \r
  97                                 {\r
  98                                         return ((DB2Error)(baseEnumerator.Current));\r
  99                                 }\r
 100                         }\r
 101             \r
 102                         object IEnumerator.Current \r
 103                         {\r
 104                                 get \r
 105                                 {\r
 106                                         return baseEnumerator.Current;\r
 107                                 }\r
 108                         }\r
 109             \r
 110                         public bool MoveNext() \r
 111                         {\r
 112                                 return baseEnumerator.MoveNext();\r
 113                         }\r
 114             \r
 115                         bool IEnumerator.MoveNext() \r
 116                         {\r
 117                                 return baseEnumerator.MoveNext();\r
 118                         }\r
 119             \r
 120                         public void Reset() \r
 121                         {\r
 122                                 baseEnumerator.Reset();\r
 123                         }\r
 124             \r
 125                         void IEnumerator.Reset() \r
 126                         {\r
 127                                 baseEnumerator.Reset();\r
 128                         }\r
 129                 }\r
 130         \r
 131         }\r
 132 }\r