Package org.web3j.contracts.token

Interface ERC20Interface<R,T>

All Superinterfaces:

ERC20BasicInterface<T>

public interface ERC20Interface<R,T>
extends ERC20BasicInterface<T>

The Ethereum ERC-20 token standard.

Implementations should provide the concrete ApprovalEventResponse and TransferEventResponse from their token as the generic types "R" amd "T".

See Also:

• EIPs/EIPS/eip-20-token-standard.md
• ERC: Token standard #20

Method Summary

Modifier and Type	Method	Description
RemoteCall<BigInteger>	allowance(String owner, String spender)
io.reactivex.Flowable<R>	approvalEventFlowable(DefaultBlockParameter startBlock, DefaultBlockParameter endBlock)
RemoteCall<TransactionReceipt>	approve(String spender, BigInteger value)
List<R>	getApprovalEvents(TransactionReceipt transactionReceipt)
RemoteCall<TransactionReceipt>	transferFrom(String from, String to, BigInteger value)

Methods inherited from interface org.web3j.contracts.token.ERC20BasicInterface

balanceOf, getTransferEvents, totalSupply, transfer, transferEventFlowable

Method Details

allowance

RemoteCall<BigInteger> allowance(String owner,
 String spender)

approve

RemoteCall<TransactionReceipt> approve(String spender,
 BigInteger value)

transferFrom

RemoteCall<TransactionReceipt> transferFrom(String from,
 String to,
 BigInteger value)

getApprovalEvents

List<R> getApprovalEvents(TransactionReceipt transactionReceipt)

approvalEventFlowable

io.reactivex.Flowable<R> approvalEventFlowable(DefaultBlockParameter startBlock,
 DefaultBlockParameter endBlock)