protected override void SwapWithCurrent(uint index, SwapType swapType)
{
if (swapType == SwapType.Match)
{
return;
}
if (swapType == SwapType.Insert && _copier != null)
{
_currentKey = _copier.Copy(_currentKey);
}
if (swapType == SwapType.Insert && _currentIsNull)
{
_nullItemIndex = (int)index;
}
T swapKey = _keys[index];
int swapValue = _values[index];
_keys[index] = _currentKey;
_values[index] = _currentValue;
_currentKey = swapKey;
_currentValue = swapValue;
_currentIsNull = (_nullItemIndex == index);
}
public void Add(XArray keys, int firstRowIndex)
{
T[] keyArray = (T[])keys.Array;
if (_valueCopier != null || keys.HasNulls)
{
for (int i = 0; i < keys.Count; ++i)
{
int index = keys.Index(i);
if (keys.HasNulls && keys.NullRows[index])
{
continue;
}
T key = keyArray[index];
if (_valueCopier != null)
{
key = _valueCopier.Copy(key);
}
_dictionary[key] = firstRowIndex + i;
}
}
else
{
for (int i = 0; i < keys.Count; ++i)
{
int index = keys.Index(i);
T key = keyArray[index];
_dictionary[key] = firstRowIndex + i;
}
}
}
public void SwapCurrent(uint index)
{
// Copy only new values and only when they become used
if (_currentIsNewValue && _copier != null)
{
_current = _copier.Copy(_current);
_currentIsNewValue = false;
}
TColumnType temp = _values[index];
_values[index] = _current;
_current = temp;
}