/// <summary>
/// Constructor
/// </summary>
/// <param name="provider">Provider side of the relation</param>
/// <param name="consumer">The module on the depending side of the relation</param>
public Relation(Element provider, Element consumer, string type, bool isDerived, RelationTypes relationTypes)
{
_relationTypes = relationTypes;
Consumer = consumer;
Provider = provider;
_typeId = relationTypes.AddRelationType(type);
IsCyclic = false;
IsDerived = isDerived;
Weight = 0;
}