tv.noixion.troncli.examples

Class IERC20Proxy

java.lang.Object

tv.noixion.troncli.SmartContractEventListener

tv.noixion.troncli.TronContractProxy

tv.noixion.troncli.examples.IERC20Proxy

All Implemented Interfaces:

TronEventHandler

public class IERC20Proxy
extends TronContractProxy

Proxy for the basic standard token ERC20.

Constructor Summary

Constructors

Constructor and Description
IERC20Proxy(TronClient client, TronAddress contractAddress) Creates a new instance of IERC20Proxy.

Method Summary

Modifier and Type	Method and Description
BigInteger	allowance(TronAddress address, TronAddress spender) Retrieves the allowance of an account.
TronTransaction	approve(TronWallet sender, TronAddress spender, BigInteger value) Approves another account to spend tokens.
BigInteger	balanceOf(TronAddress address) Retrieves the balance of an account.
void	handleEvent(String eventName, String eventSignature, Map<String,String> types, Map<String,Object> values) Handles a contract event.
void	handleNotInterpretableEvent(TronTransactionInformation.Log event) handles an event that cannot be interpreted bases on the contract ABI.
BigInteger	totalSupply() Retrieves the total supply of token.
TronTransaction	transfer(TronWallet sender, TronAddress to, BigInteger value) Transfers tokens.
TronTransaction	transferFrom(TronWallet sender, TronAddress from, TronAddress to, BigInteger value) Transfers from one account to another account.

Methods inherited from class tv.noixion.troncli.TronContractProxy

callMethod, callMethod

Methods inherited from class tv.noixion.troncli.SmartContractEventListener

getContract, handleBlock, handleTransaction

Methods inherited from class java.lang.Object

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

Constructor Detail

IERC20Proxy

public IERC20Proxy(TronClient client,
                   TronAddress contractAddress)
            throws GRPCException

Creates a new instance of IERC20Proxy.

Parameters:

client -

contractAddress -

Throws:

GRPCException

Method Detail

totalSupply

public BigInteger totalSupply()
                       throws GRPCException,
                              TransactionException,
                              EncodingException,
                              InvalidCallDataException

Retrieves the total supply of token.

Returns:

the total supply of token.

Throws:

GRPCException - If an error occurs in the GRPC protocol, generally connection problems.

TransactionException - If The transaction fails to be sent.

EncodingException - If the method call is invalid

InvalidCallDataException - If the method result is invalid

balanceOf

public BigInteger balanceOf(TronAddress address)
                     throws GRPCException,
                            TransactionException,
                            EncodingException,
                            InvalidCallDataException

Retrieves the balance of an account.

Parameters:

address - The address of the account.

Returns:

The balance of the account

Throws:

GRPCException - If an error occurs in the GRPC protocol, generally connection problems.

TransactionException - If The transaction fails to be sent.

EncodingException - If the method call is invalid

InvalidCallDataException - If the method result is invalid

allowance

public BigInteger allowance(TronAddress address,
                            TronAddress spender)
                     throws GRPCException,
                            TransactionException,
                            EncodingException,
                            InvalidCallDataException

Retrieves the allowance of an account.

Parameters:

address - The account with the founds.

spender - The spender account.

Returns:

The value allowed to spend.

Throws:

GRPCException - If an error occurs in the GRPC protocol, generally connection problems.

TransactionException - If The transaction fails to be sent.

EncodingException - If the method call is invalid

InvalidCallDataException - If the method result is invalid

transfer

public TronTransaction transfer(TronWallet sender,
                                TronAddress to,
                                BigInteger value)
                         throws GRPCException,
                                TransactionException,
                                EncodingException,
                                InvalidCallDataException

Transfers tokens.

Parameters:

sender - The sender of the transaction (owner of the tokens).

to - The receiver.

value - The amount.

Returns:

The built transaction.

Throws:

GRPCException - If an error occurs in the GRPC protocol, generally connection problems.

TransactionException - If The transaction fails to be sent.

EncodingException - If the method call is invalid

InvalidCallDataException - If the method result is invalid

approve

public TronTransaction approve(TronWallet sender,
                               TronAddress spender,
                               BigInteger value)
                        throws GRPCException,
                               TransactionException,
                               EncodingException,
                               InvalidCallDataException

Approves another account to spend tokens.

Parameters:

sender - The sender of the transaction (owner of the tokens).

spender - The spender address.

value - The amount.

Returns:

The built transaction.

Throws:

GRPCException - If an error occurs in the GRPC protocol, generally connection problems.

TransactionException - If The transaction fails to be sent.

EncodingException - If the method call is invalid

InvalidCallDataException - If the method result is invalid

transferFrom

public TronTransaction transferFrom(TronWallet sender,
                                    TronAddress from,
                                    TronAddress to,
                                    BigInteger value)
                             throws GRPCException,
                                    TransactionException,
                                    EncodingException,
                                    InvalidCallDataException

Transfers from one account to another account. Must be allowed to spend.

Parameters:

sender - The sender of the transaction.

from - The owner of the tokens.

to - The receiver.

value - The amount.

Returns:

The built transaction.

Throws:

GRPCException - If an error occurs in the GRPC protocol, generally connection problems.

TransactionException - If The transaction fails to be sent.

EncodingException - If the method call is invalid

InvalidCallDataException - If the method result is invalid

handleEvent

public void handleEvent(String eventName,
                        String eventSignature,
                        Map<String,String> types,
                        Map<String,Object> values)

Description copied from class: SmartContractEventListener

Handles a contract event.

Specified by:

handleEvent in class SmartContractEventListener

Parameters:

eventName - Event name.

eventSignature - Event signature.

types - Mapping parameter names to types.

values - Mapping parameter names to values.

handleNotInterpretableEvent

public void handleNotInterpretableEvent(TronTransactionInformation.Log event)

Description copied from class: SmartContractEventListener

handles an event that cannot be interpreted bases on the contract ABI.

Specified by:

handleNotInterpretableEvent in class SmartContractEventListener

Parameters:

event - the event data.