public TColumn GetSpatialColumnValueWithErrorHandling <TColumn>(int ordinal, PrimitiveTypeKind spatialTypeKind)
{
Debug.Assert(
spatialTypeKind == PrimitiveTypeKind.Geography || spatialTypeKind == PrimitiveTypeKind.Geometry,
"Spatial primitive type kind is not geography or geometry?");
TColumn result;
if (spatialTypeKind == PrimitiveTypeKind.Geography)
{
if (Streaming)
{
result = new ColumnErrorHandlingValueReader <TColumn>(
(reader, column) => (TColumn)(object)_spatialReader.Value.GetGeography(column),
(reader, column) => _spatialReader.Value.GetGeography(column)
).GetValue(Reader, ordinal);
}
else
{
result = new ColumnErrorHandlingValueReader <TColumn>(
(reader, column) => (TColumn)Reader.GetValue(column),
(reader, column) => Reader.GetValue(column)
).GetValue(Reader, ordinal);
}
}
else
{
if (Streaming)
{
result = new ColumnErrorHandlingValueReader <TColumn>(
(reader, column) => (TColumn)(object)_spatialReader.Value.GetGeometry(column),
(reader, column) => _spatialReader.Value.GetGeometry(column)
).GetValue(Reader, ordinal);
}
else
{
result = new ColumnErrorHandlingValueReader <TColumn>(
(reader, column) => (TColumn)Reader.GetValue(column),
(reader, column) => Reader.GetValue(column)
).GetValue(Reader, ordinal);
}
}
return(result);
}
// <summary>
// Used to retrieve a column value with exception handling. Normally compiled
// delegates directly call typed methods on the DbDataReader (e.g. GetInt32)
// but when an exception occurs we retry using this method to potentially get
// a more useful error message to the user.
// </summary>
public TColumn GetColumnValueWithErrorHandling <TColumn>(int ordinal)
{
var result = new ColumnErrorHandlingValueReader <TColumn>().GetValue(Reader, ordinal);
return(result);
}
