mcs/class/System.Data/System.Data.Common/DataAdapter.cs

   1 //
   2 // System.Data.Common.DataAdapter
   3 //
   4 // Author:
   5 //   Rodrigo Moya (rodrigo@ximian.com)
   6 //
   7 // (C) Ximian, Inc
   8 //
   9
  10 using System.ComponentModel;
  11 using System.Data;
  12
  13 namespace System.Data.Common
  14 {
  15         /// <summary>
  16         /// Represents a set of data commands and a database connection that are used to fill the DataSet and update the data source.
  17         /// </summary>
  18         public abstract class DataAdapter : Component // , IDataAdapter
  19         {
  20                 private bool acceptChangesDuringFill;
  21                 private bool continueUpdateOnError;
  22                 private MissingMappingAction missingMappingAction;
  23                 private MissingSchemaAction missingSchemaAction;
  24                 private DataTableMappingCollection tableMappings;
  25
  26                 protected DataAdapter () {
  27                         acceptChangesDuringFill = false;
  28                         continueUpdateOnError = false;
  29                         missingMappingAction = MissingMappingAction.Error;
  30                         missingSchemaAction = MissingSchemaAction.Error;
  31                         tableMappings = null;
  32                 }
  33
  34                 public abstract int Fill (DataSet dataSet);
  35
  36                 public abstract DataTable[] FillSchema (DataSet dataSet,
  37                                                         SchemaType schemaType);
  38
  39                 public abstract IDataParameter[] GetFillParameters ();
  40
  41                 public abstract int Update (DataSet dataSet);
  42
  43                 protected virtual DataAdapter CloneInternals ()
  44                 {
  45                         throw new NotImplementedException ();
  46                 }
  47
  48                 protected virtual DataTableMappingCollection CreateTableMappings ()
  49                 {
  50                         throw new NotImplementedException ();
  51                 }
  52
  53                 protected virtual bool ShouldSerializeTableMappings ()
  54                 {
  55                         throw new NotImplementedException ();
  56                 }
  57
  58                 public bool AcceptChangesDuringFill {
  59                         get {
  60                                 return acceptChangesDuringFill;
  61                         }
  62                         set {
  63                                 acceptChangesDuringFill = value;
  64                         }
  65                 }
  66
  67                 public bool ContinueUpdateOnError {
  68                         get {
  69                                 return continueUpdateOnError;
  70                         }
  71                         set {
  72                                 continueUpdateOnError = value;
  73                         }
  74                 }
  75
  76                 public MissingMappingAction MissingMappingAction {
  77                         get {
  78                                 return missingMappingAction;
  79                         }
  80                         set {
  81                                 missingMappingAction = value;
  82                         }
  83                 }
  84
  85                 public MissingSchemaAction MissingSchemaAction {
  86                         get {
  87                                 return missingSchemaAction;
  88                         }
  89                         set {
  90                                 missingSchemaAction = value;
  91                         }
  92                 }
  93
  94                 public DataTableMappingCollection TableMappings {
  95                         get {
  96                                 if (tableMappings == null)
  97                                         tableMappings = CreateTableMappings ();
  98                                 return tableMappings;
  99                         }
 100                 }
 101         }
 102 }