Package nxt.ce

Class CoinExchange

java.lang.Object

nxt.ce.CoinExchange

public final class CoinExchange
extends Object

Coin exchange home

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	CoinExchange.Event
static final class	CoinExchange.Order	Define a coin exchange order 'id' and 'fullHash' identify the coin exchange order 'chainId' is the chain identifier for the coin being exchanged 'exchangeId' is the chain identifier for the requested coin 'quantity' is the number of coins being exchanged (updated after each trade) 'bidPrice' is the bid price for the requested coin and is the exchange order price 'askPrice' is the ask price for coin being exchanged and is 1/bidPrice
static final class	CoinExchange.Trade	Define a coin exchange trade A coin exchange consists of two trades.

Field Summary

Fields

Modifier and Type	Field	Description
static final int	AMOUNT_RESERVE

Method Summary

Modifier and Type	Method	Description
static boolean	addListener(Listener<CoinExchange.Trade> listener, CoinExchange.Event eventType)
static CoinExchange.Order	getOrder(long orderId)	Return a coin exchange order
static int	getOrderCount()	Return the number of coin exchange orders
static DbIterator<CoinExchange.Order>	getOrders(long accountId, int chainId, int exchangeId, int from, int to)	Return orders matching the supplied criteria.
static CoinExchange.Trade	getTrade(byte[] orderFullHash, byte[] matchFullHash)	Return a coin exchange trade
static int	getTradeCount()	Return the number of coin exchange trades
static DbIterator<CoinExchange.Trade>	getTrades(long accountId, int chainId, int exchangeId, byte[] orderFullHash, int from, int to)	Return trades matching the supplied criteria.
static void	init()
static boolean	removeListener(Listener<CoinExchange.Trade> listener, CoinExchange.Event eventType)

Methods inherited from class java.lang.Object

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

Field Details

AMOUNT_RESERVE

public static final int AMOUNT_RESERVE

See Also:

• Constant Field Values

Method Details

addListener

public static boolean addListener(Listener<CoinExchange.Trade> listener,
 CoinExchange.Event eventType)

removeListener

public static boolean removeListener(Listener<CoinExchange.Trade> listener,
 CoinExchange.Event eventType)

init

public static void init()

getOrderCount

public static int getOrderCount()

Return the number of coin exchange orders

Returns:

Order count

getOrder

public static CoinExchange.Order getOrder(long orderId)

Return a coin exchange order

Parameters:

orderId - Order identifier

Returns:

Coin exchange order or null if not found

getOrders

public static DbIterator<CoinExchange.Order> getOrders(long accountId,
 int chainId,
 int exchangeId,
 int from,
 int to)

Return orders matching the supplied criteria. All orders will be returned if no search criteria are provided. The returned results will be sorted by price in descending order.

Parameters:

accountId - Account identifier (0 if no account criteria)

chainId - Chain identifier (0 if no chain criteria)

exchangeId - Exchange identifier (0 if no exchange criteria)

from - Starting index within search results

to - Ending index within search results

Returns:

Database iterator

getTrade

public static CoinExchange.Trade getTrade(byte[] orderFullHash,
 byte[] matchFullHash)

Return a coin exchange trade

Parameters:

orderFullHash - Coin exchange order full hash

matchFullHash - Matching order full hash

Returns:

Coin exchange trade or null if not found

getTradeCount

public static int getTradeCount()

Return the number of coin exchange trades

Returns:

Trade coin

getTrades

public static DbIterator<CoinExchange.Trade> getTrades(long accountId,
 int chainId,
 int exchangeId,
 byte[] orderFullHash,
 int from,
 int to)

Return trades matching the supplied criteria. All trades will be returned if no search criteria are provided. The returned results will be sorted by block height in descending order.

Parameters:

accountId - Account identifier (0 if no account criteria)

chainId - Chain identifier (0 if no chain criteria)

exchangeId - Exchange identifier (0 if no exchange criteria)

orderFullHash - Coin exchange order full hash (null or zero-length if no order criteria)

from - Starting index within search results

to - Ending index within search results

Returns:

Database iterator