MarketPosition (Power TAC wholesale market 1.7.0 API)

java.lang.Object
- org.powertac.common.MarketPosition

```
@Domain(fields={"broker","timeslot","balance"})
public class MarketPosition
extends Object
```
A MarketPosition domain instance represents the current position of a single broker for wholesale power in a given timeslot. The evolution of this position over time is represented by the sequence of MarketTransaction instances for this broker and timeslot. These are created by the AccountingService and communicated to individual brokers after the market clears in each timeslot.

Author:

Carsten Block, David Dauer, John Collins

Field Summary

Fields
Modifier and Type Field Description

protected long id

Constructor Summary

Constructors
Constructor	Description
`MarketPosition(Broker broker, int timeslot, double balance)`
`MarketPosition(Broker broker, Timeslot timeslot, double balance)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Broker`	`getBroker()`
`long`	`getId()`
`double`	`getOverallBalance()`
`Timeslot`	`getTimeslot()`
`int`	`getTimeslotIndex()`
`String`	`toString()`
`double`	`updateBalance(double mWh)`	Adds a quantity to the current balance.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail
- id
```
@XStreamAsAttribute
protected long id
```

Constructor Detail

MarketPosition

public MarketPosition(Broker broker,
                      int timeslot,
                      double balance)

MarketPosition

@ChainedConstructor
public MarketPosition(Broker broker,
                      Timeslot timeslot,
                      double balance)

Method Detail
- getId
```
public long getId()
```
- getBroker
```
public Broker getBroker()
```
- getTimeslotIndex
```
public int getTimeslotIndex()
```
- getTimeslot
```
public Timeslot getTimeslot()
```
- getOverallBalance
```
public double getOverallBalance()
```
- toString
```
public String toString()
```
  Overrides:
  
  toString in class Object
- updateBalance
```
@StateChange
public double updateBalance(double mWh)
```
  Adds a quantity to the current balance. Positive numbers signify purchased power, negative numbers signify sold power. Returns the resulting total balance