internal static SqlMetaData SmiExtendedMetaDataToSqlMetaData(SmiExtendedMetaData source)
{
if (SqlDbType.Xml == source.SqlDbType)
{
return(new SqlMetaData(source.Name,
source.SqlDbType,
source.MaxLength,
source.Precision,
source.Scale,
source.LocaleId,
source.CompareOptions,
source.TypeSpecificNamePart1,
source.TypeSpecificNamePart2,
source.TypeSpecificNamePart3,
true,
source.Type));
}
return(new SqlMetaData(source.Name,
source.SqlDbType,
source.MaxLength,
source.Precision,
source.Scale,
source.LocaleId,
source.CompareOptions,
null));
}
public override long GetChars(int ordinal, long fieldOffset, char[] buffer, int bufferOffset, int length)
{
this.EnsureCanGetCol("GetChars", ordinal);
SmiExtendedMetaData metaData = this._currentMetaData[ordinal];
if (base.IsCommandBehavior(CommandBehavior.SequentialAccess) && (metaData.SqlDbType == SqlDbType.Xml))
{
return(base.GetStreamingXmlChars(ordinal, fieldOffset, buffer, bufferOffset, length));
}
return(ValueUtilsSmi.GetChars(this._readerEventSink, this._currentColumnValuesV3, ordinal, metaData, fieldOffset, buffer, bufferOffset, length));
}
public override string GetDataTypeName(int ordinal)
{
this.EnsureCanGetMetaData("GetDataTypeName");
SmiExtendedMetaData data = this._currentMetaData[ordinal];
if (SqlDbType.Udt == data.SqlDbType)
{
return(data.TypeSpecificNamePart1 + "." + data.TypeSpecificNamePart2 + "." + data.TypeSpecificNamePart3);
}
return(data.TypeName);
}
internal override SmiExtendedMetaData[] GetInternalSmiMetaData()
{
if ((this._currentMetaData == null) || (this._visibleColumnCount == this.InternalFieldCount))
{
return(this._currentMetaData);
}
SmiExtendedMetaData[] dataArray = new SmiExtendedMetaData[this._visibleColumnCount];
for (int i = 0; i < this._visibleColumnCount; i++)
{
dataArray[i] = this._currentMetaData[this._indexMap[i]];
}
return(dataArray);
}
static internal bool IsValidForSmiVersion(SmiExtendedMetaData md, ulong smiVersion)
{
if (SmiContextFactory.LatestVersion == smiVersion)
{
return(true);
}
else
{
// 2005 doesn't support Structured nor the new time types
Debug.Assert(SmiContextFactory.Sql2005Version == smiVersion, "Other versions should have been eliminated during link stage");
return(md.SqlDbType != SqlDbType.Structured &&
md.SqlDbType != SqlDbType.Date &&
md.SqlDbType != SqlDbType.DateTime2 &&
md.SqlDbType != SqlDbType.DateTimeOffset &&
md.SqlDbType != SqlDbType.Time);
}
}
