uk.ac.liv.auction.agent
Class RandomValuer

java.lang.Object
  uk.ac.liv.auction.agent.RandomValuer

All Implemented Interfaces:

AuctionEventListener, Parameterizable, Resetable, java.io.Serializable, ValuationPolicy

Direct Known Subclasses:

DailyRandomValuer, RandomScheduleValuer

public class RandomValuer

extends java.lang.Object

implements ValuationPolicy, java.io.Serializable

A valuation policy in which we randomly determine our valuation across all auctions and all units at agent-initialisation time. Valuations are drawn from a uniform distribution with the specified range.

Parameters

base .minvalue double >= 0	(the minimum valuation)
base .maxvalue double >=0	(the maximum valuation)

Version:

$Revision: 1.19 $

Author:

Steve Phelps

See Also:

Serialized Form

Field Summary

protected cern.jet.random.AbstractContinousDistribution	distribution The probability distribution to use for drawing valuations.
protected double	maxValue The maximum valuation to use.
protected double	minValue The minimum valuation to use.
static java.lang.String	P_MAXVALUE
static java.lang.String	P_MINVALUE
protected double	value The current valuation.

Constructor Summary

RandomValuer()

RandomValuer(double minValue, double maxValue)

Method Summary

void	consumeUnit(Auction auction) Recalculate valuation after consumption of the commodity being traded in the given auction.
double	determineValue(Auction auction) Determine the current valuation of commodity in the given auction.
void	drawRandomValue()
void	eventOccurred(AuctionEvent event) Recalculate valuation(s) in response to an auction event.
double	getCurrentValuation()
double	getMaxValue()
double	getMinValue()
void	initialise()
void	reset() Reinitialise our state to the original settings.
void	setMaxValue(double maxValue)
void	setMinValue(double minValue)
void	setup(ec.util.ParameterDatabase parameters, ec.util.Parameter base) Initialise this object from a parameter database.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

value

protected double value

The current valuation.

minValue

protected double minValue

The minimum valuation to use.

maxValue

protected double maxValue

The maximum valuation to use.

distribution

protected cern.jet.random.AbstractContinousDistribution distribution

The probability distribution to use for drawing valuations.

P_MINVALUE

public static final java.lang.String P_MINVALUE

See Also:

Constant Field Values

P_MAXVALUE

public static final java.lang.String P_MAXVALUE

See Also:

Constant Field Values

Constructor Detail

RandomValuer

public RandomValuer()

RandomValuer

public RandomValuer(double minValue,
                    double maxValue)

Method Detail

setup

public void setup(ec.util.ParameterDatabase parameters,
                  ec.util.Parameter base)

Description copied from interface: Parameterizable

Initialise this object from a parameter database.

Specified by:

setup in interface Parameterizable

determineValue

public double determineValue(Auction auction)

Description copied from interface: ValuationPolicy

Determine the current valuation of commodity in the given auction.

Specified by:

determineValue in interface ValuationPolicy

consumeUnit

public void consumeUnit(Auction auction)

Description copied from interface: ValuationPolicy

Recalculate valuation after consumption of the commodity being traded in the given auction.

Specified by:

consumeUnit in interface ValuationPolicy

eventOccurred

public void eventOccurred(AuctionEvent event)

Description copied from interface: ValuationPolicy

Recalculate valuation(s) in response to an auction event.

Specified by:

eventOccurred in interface ValuationPolicy

reset

public void reset()

Description copied from interface: Resetable

Reinitialise our state to the original settings.

Specified by:

reset in interface Resetable

initialise

public void initialise()

setMaxValue

public void setMaxValue(double maxValue)

getMaxValue

public double getMaxValue()

setMinValue

public void setMinValue(double minValue)

getMinValue

public double getMinValue()

getCurrentValuation

public double getCurrentValuation()

drawRandomValue

public void drawRandomValue()

toString

public java.lang.String toString()