nxt.addons

Interface Contract<InvocationData,ReturnedData>

All Known Implementing Classes:

AbstractContract, AccountBalanceNotifier, AllForOnePayment, AllowedActions, ChainMonitor, ChildToParentExchange, CoinExchangeTradingBot, ContractWithInnerInterface, DatabaseAccess, DistributedRandomNumberGenerator, ForbiddenActions, ForgingReward, GetRandomNumber, HelloWorld, HelloWorldForwarder, IgnisArdorRates, LeaseRenewal, LiberlandCitizenRegistry, NewAccountFaucet, PropertyBasedLottery, RandomPayment, SlackNotifier, SplitPayment, TelegramNotifier, WhaleAlert

public interface Contract<InvocationData,ReturnedData>

Method Summary

Modifier and Type	Method and Description
default void	init(InitializationContext context) Contract initialization.
<T extends TransactionResponse> boolean	isDuplicate(T myTransaction, java.util.List<T> existingUnconfirmedTransactions)
default java.lang.String	minProductVersion()
JO	processBlock(BlockContext context)
ReturnedData	processInvocation(DelegatedContext context, InvocationData data)
JO	processRequest(RequestContext context)
JO	processTransaction(TransactionContext context)
JO	processVoucher(VoucherContext context)
default void	shutdown(ShutdownContext context) Contract shutdown

Method Detail

processBlock

JO processBlock(BlockContext context)

processTransaction

JO processTransaction(TransactionContext context)

processRequest

JO processRequest(RequestContext context)
           throws NxtException

Throws:

NxtException

processVoucher

JO processVoucher(VoucherContext context)

processInvocation

ReturnedData processInvocation(DelegatedContext context,
                               InvocationData data)

isDuplicate

<T extends TransactionResponse> boolean isDuplicate(T myTransaction,
                                                    java.util.List<T> existingUnconfirmedTransactions)

minProductVersion

default java.lang.String minProductVersion()

init

default void init(InitializationContext context)

Contract initialization.

Invoked once after loading the contract class, before any other callback. Use this callback to initialize long running services required by the contract.

Parameters:

context - the contract context

shutdown

default void shutdown(ShutdownContext context)

Contract shutdown

Invoked once before destroying the contract class, after any other callback. Use this callback to clean up long running services.

Parameters:

context - the contract context