public static List<IRelation> ToRelation<TNode>(this ILink<TNode> link, RelationDirection linkDirection = RelationDirection.Forwards)
where TNode : INode
{
List<IRelation> relations = new List<IRelation>();
IRelation forward = ToRelation(link);
switch (linkDirection)
{
case RelationDirection.Forwards:
relations.Add(forward);
break;
case RelationDirection.Backwards:
relations.Add(forward.Reverse());
break;
case RelationDirection.Both:
relations.Add(forward);
relations.Add(forward.DeepClone().IReverse());
break;
}
return relations;
}
/***************************************************/
private static List <IRelation> RelationsToAdd(IRelation relation, RelationDirection linkDirection)
{
List <IRelation> relations = new List <IRelation>();
if (linkDirection == RelationDirection.Forwards)
{
relations.Add(relation);
}
if (linkDirection == RelationDirection.Backwards)
{
relations.Add(relation.IReverse());
}
if (linkDirection == RelationDirection.Both)
{
relations.Add(relation);
IRelation clone = relation.DeepClone();
relations.Add(clone.IReverse());
}
return(relations);
}