private bool UpdatePartitionGetIsNull(int partitionID, long localRowID, int nullIndex)
{
_lastPartitionReader = _tx.Read(partitionID);
_lastPartitionID = partitionID;
byte[] bitset = ((IBitsetColumn)_lastPartitionReader.ReadColumn(_bitSetColIndex))
.GetValue(localRowID, _tx.ReadCache);
return(new ByteArray(bitset).IsSet(nullIndex));
}
public bool IsMatch(IPartitionReader partition, ReadContext readCache, long localRowID)
{
if (_columnPartition != partition.PartitionID)
{
_columnPartition = partition.PartitionID;
_columnReader = (ITypedColumn <T>)partition.ReadColumn(_column.ColumnID);
}
var value = _columnReader.Get(localRowID, readCache);
return(IsMatch(value));
}
private bool MatchFilters(IPartitionReader partition, ReadContext readContext, long localRowID)
{
if (_andFilters == null)
{
return(true);
}
for (int i = 0; i < _andFilters.Count; i++)
{
if (!_andFilters[i].IsMatch(partition, readContext, localRowID))
{
return(false);
}
}
return(true);
}
private IEnumerable <T> Read()
{
int lastPartitionID = -1;
IPartitionReader lastPartitionReader = null;
foreach (var rowID in _rowIDs)
{
int partitionID = RowIDUtil.ToPartitionIndex(rowID);
if (partitionID != lastPartitionID)
{
lastPartitionReader = _tx.Read(partitionID);
lastPartitionID = partitionID;
}
long localRowID = RowIDUtil.ToLocalRowID(rowID);
// ReSharper disable once PossibleNullReferenceException
yield return(lastPartitionReader.Read <T>(localRowID, _tx.ReadCache));
}
}
private IEnumerable <long> ApplyFilters(IEnumerable <long> rowIDs, IReadTransactionContext tx)
{
int partitionIndex = -1;
IPartitionReader partition = null;
foreach (var globalRowID in rowIDs)
{
var rowPartitionIndex = RowIDUtil.ToPartitionIndex(globalRowID);
if (rowPartitionIndex != partitionIndex)
{
partition = tx.Read(rowPartitionIndex);
partitionIndex = rowPartitionIndex;
}
if (MatchFilters(partition, tx.ReadCache, RowIDUtil.ToLocalRowID(globalRowID)))
{
yield return(globalRowID);
}
}
}
private IEnumerable <long> IsPartitionMatch(IReadTransactionContext tx, PartitionRowIDRange part,
IPartitionReader partition, ERowIDSortDirection sortDirection)
{
if (sortDirection == ERowIDSortDirection.Asc)
{
for (long rowId = part.Low; rowId <= part.High; rowId++)
{
if (IsMatch(partition, tx.ReadCache, rowId))
{
yield return(RowIDUtil.ToRowID(part.PartitionID, rowId));
}
}
}
else
{
for (long rowId = part.High; rowId >= part.Low; rowId--)
{
if (IsMatch(partition, tx.ReadCache, rowId))
{
yield return(RowIDUtil.ToRowID(part.PartitionID, rowId));
}
}
}
}
private T UpdatePartition <T>(int partitionID, long localRowID, int columnIndex)
{
_lastPartitionReader = _tx.Read(partitionID);
_lastPartitionID = partitionID;
return(((ITypedColumn <T>)_lastPartitionReader.ReadColumn(columnIndex)).Get(localRowID, _tx.ReadCache));
}
public ConsoleApplication(IPartitionReader reader)
{
this._reader = reader;
}
