public IEnumerable <Tuple <ObjectID, object> > ReadSequence(IDataReader dataReader)
{
ArgumentUtility.CheckNotNull("dataReader", dataReader);
var columnValueProvider = new ColumnValueReader(dataReader, _columnOrdinalProvider);
while (dataReader.Read())
{
yield return(GetTimestampTuple(columnValueProvider));
}
}
public IEnumerable <ObjectID> ReadSequence(IDataReader dataReader)
{
ArgumentUtility.CheckNotNull("dataReader", dataReader);
var columnValueReader = new ColumnValueReader(dataReader, _columnOrdinalProvider);
while (dataReader.Read())
{
yield return((ObjectID)_idProperty.CombineValue(columnValueReader));
}
}
public virtual IEnumerable <DataContainer> ReadSequence(IDataReader dataReader)
{
ArgumentUtility.CheckNotNull("dataReader", dataReader);
var columnValueReader = new ColumnValueReader(dataReader, _ordinalProvider);
while (dataReader.Read())
{
yield return(CreateDataContainerFromReader(dataReader, columnValueReader));
}
}
protected virtual DataContainer CreateDataContainerFromReader(IDataReader dataReader, ColumnValueReader columnValueReader)
{
ArgumentUtility.CheckNotNull("dataReader", dataReader);
var id = (ObjectID)_idProperty.CombineValue(columnValueReader);
if (id == null)
{
return(null);
}
var timestamp = _timestampProperty.CombineValue(columnValueReader);
var dataContainer = DataContainer.CreateForExisting(
id,
timestamp,
pd => pd.StorageClass == StorageClass.Persistent ? ReadPropertyValue(pd, columnValueReader, id) : pd.DefaultValue);
_dataContainerValidator.Validate(dataContainer);
return(dataContainer);
}