public override void ReEvaluate()
{
foreach (KeyValuePair <TSource, GroupAndElement> pair in _outputShadowMap)
{
TSource item = pair.Key;
GroupAndElement info = pair.Value;
MaybeMoveItem(item, info);
}
}
private void MaybeMoveItem(TSource item, GroupAndElement info)
{
TKey newKey = _keySelector(item);
TElement newElement = _elementSelector(item);
if (info.Group.Key.Equals(newKey) == false || info.Element.Equals(newElement) == false)
{
RemoveItem(item);
AddItem(item, newElement);
}
}
private void AddItem(TSource item, TElement element)
{
TKey theKey = _keySelector(item);
GroupedContinuousCollection <TKey, TElement> outputGroup;
if (_groupMap.TryGetValue(theKey, out outputGroup) == false)
{
outputGroup = new GroupedContinuousCollection <TKey, TElement>(theKey, _comparer);
this.OutputCollection.Add(outputGroup);
_groupMap[theKey] = outputGroup;
}
try
{
outputGroup.IsSealed = false;
outputGroup.Add(element);
}
finally
{
outputGroup.IsSealed = true;
}
_outputShadowMap[item] = new GroupAndElement(outputGroup, element);
}
