public RelationsDescriptor Join <TParent, TChild>()
{
if (PromisedValue.ContainsKey(typeof(TParent)))
{
throw new ArgumentException(Message(typeof(TParent)));
}
return(Assign(typeof(TParent), typeof(TChild)));
}
public RelationsDescriptor Join <TParent>(RelationName child, params RelationName[] moreChildren)
{
if (PromisedValue.ContainsKey(typeof(TParent)))
{
throw new ArgumentException(Message(typeof(TParent)));
}
return(Assign(typeof(TParent), new Children(child, moreChildren)));
}