public virtual ICollection <ICollection <TData> > GetCollectionsForDescriptor(INonTerminalDescriptor descriptor)
{
if (!CollectionsByDescriptor.ContainsKey(descriptor))
{
CollectionsByDescriptor[descriptor] = new List <ICollection <TData> >();
}
return(CollectionsByDescriptor[descriptor]);
}
public virtual bool IsCollectionRegisteredWithDescriptor(ICollection <TData> collection, INonTerminalDescriptor descriptor)
{
return(CollectionsByDescriptor.ContainsKey(descriptor) &&
CollectionsByDescriptor[descriptor].Contains(collection));
}