edu.cuny.cat.trader.strategy
Class AbstractStrategy

java.lang.Object
  java.util.Observable
      edu.cuny.cat.trader.strategy.AbstractStrategy

All Implemented Interfaces:

AuctionEventListener, Strategy, edu.cuny.obj.Prototypeable, edu.cuny.obj.Resetable, java.io.Serializable, java.lang.Cloneable

Direct Known Subclasses:

FixedQuantityStrategyImpl

public abstract class AbstractStrategy
extends java.util.Observable
implements java.io.Serializable, Strategy, edu.cuny.obj.Resetable, java.lang.Cloneable

An abstract implementation of the Strategy interface that provides skeleton functionality for making trading decisions.

Version:

$Revision: 1.20 $

Author:

Kai Cai

See Also:

Serialized Form

Field Summary

protected AbstractTradingAgent	agent
protected Shout.MutableShout	currentShout
static double	MIN_PRICE_DIFFERENCE the smallest price unit in making a shout.

Constructor Summary

AbstractStrategy()

AbstractStrategy(AbstractTradingAgent agent)

Method Summary

void	eventOccurred(AuctionEvent event)
AbstractTradingAgent	getAgent()
void	initialize()
boolean	modifyShout(Shout.MutableShout shout) Modify the price and quantity of the given shout according to this strategy.
Shout	modifyShout(Shout shout) Modify the trader's current shout according to the trading strategy being implemented.
java.lang.Object	protoClone()
boolean	requiresAuctionHistory()
void	reset()
void	setAgent(AbstractTradingAgent agent)
java.lang.String	toString()

Methods inherited from class java.util.Observable

addObserver, clearChanged, countObservers, deleteObserver, deleteObservers, hasChanged, notifyObservers, notifyObservers, setChanged

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.cuny.cat.trader.strategy.Strategy

determineQuantity

Field Detail

agent

protected AbstractTradingAgent agent

currentShout

protected Shout.MutableShout currentShout

MIN_PRICE_DIFFERENCE

public static final double MIN_PRICE_DIFFERENCE

the smallest price unit in making a shout.

See Also:

Constant Field Values

Constructor Detail

AbstractStrategy

public AbstractStrategy()

AbstractStrategy

public AbstractStrategy(AbstractTradingAgent agent)

Method Detail

initialize

public void initialize()

reset

public void reset()

Specified by:

reset in interface edu.cuny.obj.Resetable

protoClone

public java.lang.Object protoClone()

Specified by:

protoClone in interface edu.cuny.obj.Prototypeable

modifyShout

public Shout modifyShout(Shout shout)

Description copied from interface: Strategy

Modify the trader's current shout according to the trading strategy being implemented.

Specified by:

modifyShout in interface Strategy

Parameters:

shout - The shout to be updated

Returns:

The new shout, or null if no shout is to be placed.

modifyShout

public boolean modifyShout(Shout.MutableShout shout)

Modify the price and quantity of the given shout according to this strategy.

Returns:

false if no shout is to be placed at this time

eventOccurred

public void eventOccurred(AuctionEvent event)

Specified by:

eventOccurred in interface AuctionEventListener

getAgent

public AbstractTradingAgent getAgent()

setAgent

public void setAgent(AbstractTradingAgent agent)

Specified by:

setAgent in interface Strategy

requiresAuctionHistory

public boolean requiresAuctionHistory()

Specified by:

requiresAuctionHistory in interface Strategy

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object