public FilteredCollection(Func <T, T, SubsetRelation> comparer, SubsetRelation relationToFind, List <T> result = null)
{
_relationToFind = relationToFind;
_inverseRelation = SubsetRelation.Unrelated;
switch (_relationToFind)
{
case SubsetRelation.Superset:
_inverseRelation = SubsetRelation.Subset;
break;
case SubsetRelation.Subset:
_inverseRelation = SubsetRelation.Superset;
break;
case SubsetRelation.Equal:
_inverseRelation = SubsetRelation.Different;
break;
}
_comparer = comparer;
if (result == null)
{
_current = new List <T>();
}
else
{
_current = result;
}
}
private bool IsSubset(IEmergingPattern pat1, IEmergingPattern pat2)
{
return(pat2.Items.All(x => pat1.Items.Any(y =>
{
SubsetRelation relation = comparer.Compare(y, x);
return relation == SubsetRelation.Equal ||
relation == SubsetRelation.Subset;
})));
}
