public static bool operator >(Criterion l, Criterion r)
{
if ((object)l == (object)r)
{
return(false);
}
if ((object)l == null)
{
return(false);
}
if ((object)r == null)
{
return(true);
}
try
{
CriterionOrdering.OrderingRelation relation = l.GetRelationTo(r);
return(true);
}
catch (RelationshipError)
{
CriterionOrdering.OrderingRelation relation = r.GetRelationTo(l);
return(false);
}
}
public void AddCriterionOrdering(
CriterionOrdering.OrderingRelation relation,
Criterion criterion)
{
if (!CriterionOrderings.Equals(criterion.CriterionOrderings))
{
throw new RelationshipError();
}
if (CriterionOrderings.ContainsKey(Name))
{
throw new RelationshipError();
}
CriterionOrderings.Add(
Name,
new CriterionOrdering(this, relation, criterion));
}
CreateCriterionOrdering(
string name1,
CriterionOrdering.OrderingRelation relation,
string name2)
{
if (!Criteria.ContainsKey(name1))
{
throw new UnknownCriterionError();
}
if (!Criteria.ContainsKey(name2))
{
throw new UnknownCriterionError();
}
Criteria[name1].AddCriterionOrdering(
relation,
Criteria[name2]);
}
public CriterionOrdering.OrderingRelation GetRelationTo(
Criterion c)
{
if (CriterionOrderings != c.CriterionOrderings)
{
throw new RelationshipError();
}
// First check relation between this and c
CriterionOrdering.OrderingRelation greatestRelation = CriterionOrdering.OrderingRelation.IsEqualTo;
string Next = Name;
while (true)
{
if (!CriterionOrderings.ContainsKey(Next))
{
break;
}
CriterionOrdering co = CriterionOrderings[Next];
if (co.Relation > greatestRelation)
{
greatestRelation = co.Relation;
}
if (co.Right.Name == c.Name)
{
return(greatestRelation);
}
Next = co.Right.Name;
}
throw new RelationshipError();
}