internal void Instantiate(bool optimize)
{
if (_list == null)
{
ResourceListPredicate oldPredicate = _predicate;
if (optimize)
{
_predicate = _predicate.Optimize(_isLive);
}
if (MyPalStorage.TraceOperations && !(_predicate is PlainListPredicate))
{
if (!Object.ReferenceEquals(oldPredicate, _predicate))
{
Trace.WriteLine("Predicate before optimization: " + oldPredicate.ToString());
}
Trace.WriteLine("Instantiating list " + _predicate.ToString());
}
bool predicateSortedById = false;
_list = _predicate.GetMatchingResources(out predicateSortedById);
if (_isLive && !_handlersAttached)
{
SetLive();
}
if (_lastComparer != null)
{
DoSort(_lastComparer, true);
}
else if (predicateSortedById)
{
_lastComparer = new ResourceComparer(this, new SortSettings(ResourceProps.Id, true), false);
}
}
}
public override string ToString()
{
return "Minus(" + _lhs.ToString() + "," + _rhs.ToString() + ")";
}
