Package jadex.bdi.planlib.protocols

Class ExponentialPriceCalculator

  • All Implemented Interfaces:
    IOfferGenerator
    public class ExponentialPriceCalculator
extends java.lang.Object
implements IOfferGenerator
    A sample implementation of the IPriceCalculator. Calculates the price for the next round of an english auction.

    • Field Summary

      Fields 
      Modifier and Type Field Description
      protected double base
      The base (base^round).
      protected boolean increasing
      Flag indicating if increasing or decreasing prices are calculated.
      protected double limitprice
      The limit price.
      protected double minstepwidth
      The minimum step width.
      protected java.util.List prices
      The prices.
      protected int round
      The negotiation round.
      protected double startprice
      The start price.
      protected double variation
      The variation.

    • Constructor Summary

      Constructors 
      Constructor Description
      ExponentialPriceCalculator​(double startprice, double limitprice, double base)
      Create a new exponential price calculator.
      ExponentialPriceCalculator​(double startprice, double limitprice, double base, double variation, double minstepwidth)
      Create a new exponential price calculator.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.Comparable getCurrentOffer()
      Get the price for the current round of this auction.
      java.lang.Comparable getLastOffer()
      Returns the offer for the last round.
      java.lang.Comparable getLimitOffer()
      Get the min price.
      int getRound()
      Get the round.
      java.lang.Comparable getStartOffer()
      Get the start price.
      static void main​(java.lang.String[] args)
      Main for testing.
      void setNextRound()
      Increase the round.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Field Detail

      • round

        protected int round
        The negotiation round.

      • startprice

        protected double startprice
        The start price.

      • limitprice

        protected double limitprice
        The limit price.

      • prices

        protected java.util.List prices
        The prices.

      • variation

        protected double variation
        The variation.

      • base

        protected double base
        The base (base^round).

      • minstepwidth

        protected double minstepwidth
        The minimum step width.

      • increasing

        protected boolean increasing
        Flag indicating if increasing or decreasing prices are calculated.

    • Constructor Detail

      • ExponentialPriceCalculator

        public ExponentialPriceCalculator​(double startprice,
                                  double limitprice,
                                  double base)
        Create a new exponential price calculator.
        Parameters:
        startprice - The start price.
        limitprice - The limit price (min or max) for a auction.
        base - The base for the exponential function.

      • ExponentialPriceCalculator

        public ExponentialPriceCalculator​(double startprice,
                                  double limitprice,
                                  double base,
                                  double variation,
                                  double minstepwidth)
        Create a new exponential price calculator.
        Parameters:
        startprice - the start price
        limitprice - the minimal price for a successful auction
        base - The base for the exponential function.
        variation - The variation in percentage (0->1) for the increment. The increment will be used to adapt the increment by multiplying it with (+/-) a random value that has maximal the variation percentage influence, e.g. setting 0.1 will cause the increment being maximally +/-10% changed.
        minstepwidth - The minimum step width (a positive value that describes the minimum price change in each round).

    • Method Detail

      • getCurrentOffer

        public java.lang.Comparable getCurrentOffer()
        Get the price for the current round of this auction.
        Specified by:
        getCurrentOffer in interface IOfferGenerator
        Returns:
        The price.

      • getLastOffer

        public java.lang.Comparable getLastOffer()
        Returns the offer for the last round.
        Specified by:
        getLastOffer in interface IOfferGenerator
        Returns:
        The last offer.

      • getLimitOffer

        public java.lang.Comparable getLimitOffer()
        Get the min price.
        Specified by:
        getLimitOffer in interface IOfferGenerator
        Returns:
        The minprice.

      • getStartOffer

        public java.lang.Comparable getStartOffer()
        Get the start price.
        Specified by:
        getStartOffer in interface IOfferGenerator
        Returns:
        The startprice

      • getRound

        public int getRound()
        Get the round.
        Specified by:
        getRound in interface IOfferGenerator
        Returns:
        The round.

      • main

        public static void main​(java.lang.String[] args)
        Main for testing.