public void RemoveBidder(IBidder bidder) { _biddersObservers.Remove(bidder); }
public void RemoveBidder(IBidder bidder) { bidders.Remove(bidder); }
public void RegisterBidder(IBidder bidder) { _biddersObservers.Add(bidder); }
public void AcceptBidder(IBidder bidder) { bidders.Add(bidder); }