edu.cuny.cat.market.accepting
Class TransactionBasedAcceptingPolicy

java.lang.Object
  edu.cuny.cat.market.AuctioneerPolicy
      edu.cuny.cat.market.accepting.ShoutAcceptingPolicy
          edu.cuny.cat.market.accepting.OnlyNewShoutDecidingAcceptingPolicy
              edu.cuny.cat.market.accepting.TransactionBasedAcceptingPolicy

All Implemented Interfaces:

AuctionEventListener, edu.cuny.config.param.Parameterizable, edu.cuny.obj.Resetable

public class TransactionBasedAcceptingPolicy
extends OnlyNewShoutDecidingAcceptingPolicy

the accepting policy that tracks matched asks and bids and uses lowest matched bid and highest matched ask to restrict the shouts to be accepted. This aims to increase the transation success rate.

Version:

$Revision: 1.5 $

Author:

Jinzhong Niu

Field Summary

protected double	delta used to relax the restriction
protected double	highestAskPrice
protected double	lowestBidPrice
protected double	maxDailyAcceptedAsk
protected double	minDailyAcceptedBid

Fields inherited from class edu.cuny.cat.market.accepting.ShoutAcceptingPolicy

P_DEF_BASE

Fields inherited from class edu.cuny.cat.market.AuctioneerPolicy

auctioneer

Constructor Summary

TransactionBasedAcceptingPolicy()

Method Summary

void	check(Shout shout) accepts all shouts and IllegalShoutException is never thrown.
void	eventOccurred(AuctionEvent event)
void	reset() resets the state to be the same as the policy is created and initialized.

Methods inherited from class edu.cuny.cat.market.accepting.OnlyNewShoutDecidingAcceptingPolicy

check

Methods inherited from class edu.cuny.cat.market.AuctioneerPolicy

getAuctioneer, initialize, setAuctioneer, setup, toString

Methods inherited from class java.lang.Object

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

Field Detail

minDailyAcceptedBid

protected double minDailyAcceptedBid

maxDailyAcceptedAsk

protected double maxDailyAcceptedAsk

lowestBidPrice

protected double lowestBidPrice

highestAskPrice

protected double highestAskPrice

delta

protected double delta

used to relax the restriction

Constructor Detail

TransactionBasedAcceptingPolicy

public TransactionBasedAcceptingPolicy()

Method Detail

reset

public void reset()

Description copied from class: AuctioneerPolicy

resets the state to be the same as the policy is created and initialized.

Specified by:

reset in interface edu.cuny.obj.Resetable

Overrides:

reset in class AuctioneerPolicy

check

public void check(Shout shout)
           throws IllegalShoutException

accepts all shouts and IllegalShoutException is never thrown.

Specified by:

check in class OnlyNewShoutDecidingAcceptingPolicy

Parameters:

shout - the shout being checked.

Throws:

IllegalShoutException

See Also:

OnlyNewShoutDecidingAcceptingPolicy.check(edu.cuny.cat.core.Shout)

eventOccurred

public void eventOccurred(AuctionEvent event)

Specified by:

eventOccurred in interface AuctionEventListener

Overrides:

eventOccurred in class AuctioneerPolicy