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

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