Packages

class Bid extends AnyRef

The class Bid represents bids made for items up for auction in an electronic auction house. Each Bid object stores the name of the bidder --- that is, the customer who made the bid --- as well as the maximum amount the bidder is willing to pay for the item.

A bid object may also be created that has no bidder at all. This is useful, because a Bid object with no bidder can now be used for representing the initial prices of auctions before any genuine bids have been made.

A bid object is immutable after creation.

See also

EnglishAuction

Linear Supertypes
AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. Bid
  2. AnyRef
  3. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new Bid(bidder: Option[String], limit: Int)

    bidder

    the name of the customer who made the bid, wrapped in an Option, or None if the object represents an initial price with no bidder

    limit

    the maximum sum of money the bidder is willing to pay for the item

Value Members

  1. def beats(olderBid: Bid): Boolean

    Determines whether this bid beats the given competing bid.

    Determines whether this bid beats the given competing bid. A bid beats another if it has a higher limit, or if the limits are equal and the other bid is a bidderless initial bid.

  2. val bidder: Option[String]
  3. def isInitialBid: Boolean

    Determines whether this bid is an "bidderless bid" that represents an auction's initial price.

  4. val limit: Int
  5. def winner(olderBid: Bid): Bid

    Checks whether this bid beats the given older bid, and returns one of the two bids accordingly: this bid if it beats the given one, the given bid otherwise.