PositionService (Trading bot spring boot autoconfigure 3.0.0 API)

All Known Implementing Classes:

PositionServiceImplementation
```
public interface PositionService
```
Service allowing to create and retrieve positions.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`PositionCreationResultDTO`	`createPosition(CurrencyPairDTO currencyPair, BigDecimal amount, PositionRulesDTO rules)`	Creates a position with its associated rules.
`HashMap<CurrencyDTO,GainDTO>`	`getGains()`	Return the gains made by all positions.
`Optional<PositionDTO>`	`getPositionById(long id)`	Get position by id.
`Set<PositionDTO>`	`getPositions()`	Get positions.
`void`	`restorePosition(PositionDTO position)`	Restore position.
`void`	`tickerUpdate(TickerDTO ticker)`	Method called by streams at every ticker update.
`void`	`tradeUpdate(TradeDTO trade)`	Method called by streams on every trade update.

- Method Detail
  - getPositions
```
Set<PositionDTO> getPositions()
```
    Get positions.
    
    Returns:
    
    position list
  - getPositionById
```
Optional<PositionDTO> getPositionById(long id)
```
    Get position by id.
    
    Parameters:
    
    id - id
    
    Returns:
    
    position
  - createPosition
```
PositionCreationResultDTO createPosition(CurrencyPairDTO currencyPair,
                                         BigDecimal amount,
                                         PositionRulesDTO rules)
```
    Creates a position with its associated rules.
    
    Parameters:
    
    currencyPair - currency pair
    
    amount - amount
    
    rules - rules
    
    Returns:
    
    position creation result
  - tickerUpdate
```
void tickerUpdate(TickerDTO ticker)
```
    Method called by streams at every ticker update.
    
    Parameters:
    
    ticker - ticker
  - tradeUpdate
```
void tradeUpdate(TradeDTO trade)
```
    Method called by streams on every trade update.
    
    Parameters:
    
    trade - trade
  - getGains
```
HashMap<CurrencyDTO,GainDTO> getGains()
```
    Return the gains made by all positions.
    
    Returns:
    
    gains by currency.
  - restorePosition
```
void restorePosition(PositionDTO position)
```
    Restore position.
    
    Parameters:
    
    position - position