Package org.web3j.protocol.core.filters

Class BlockFilter

java.lang.Object

org.web3j.protocol.core.filters.Filter<String>

org.web3j.protocol.core.filters.BlockFilter

public class BlockFilter
extends Filter<String>

Handler for working with block filter requests.

Field Summary

Fields inherited from class org.web3j.protocol.core.filters.Filter

callback, schedule, web3j

Constructor Summary

Constructors

Constructor	Description
BlockFilter(Web3j web3j, Callback<String> callback)

Method Summary

Modifier and Type	Method	Description
protected Optional<Request<?,EthLog>>	getFilterLogs(BigInteger filterId)	Since the block filter does not support historic filters, the filterId is ignored and an empty optional is returned.
protected void	process(List<EthLog.LogResult> logResults)
protected EthFilter	sendRequest()

Methods inherited from class org.web3j.protocol.core.filters.Filter

cancel, run, uninstallFilter

Methods inherited from class java.lang.Object

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

Constructor Details

BlockFilter

public BlockFilter(Web3j web3j,
 Callback<String> callback)

Method Details

sendRequest

protected EthFilter sendRequest()
                         throws IOException

Specified by:

sendRequest in class Filter<String>

Throws:

IOException

process

protected void process(List<EthLog.LogResult> logResults)

Specified by:

process in class Filter<String>

getFilterLogs

protected Optional<Request<?,EthLog>> getFilterLogs(BigInteger filterId)

Since the block filter does not support historic filters, the filterId is ignored and an empty optional is returned.

Specified by:

getFilterLogs in class Filter<String>

Parameters:

filterId - Id of the filter for which the historic log should be retrieved

Returns:

Optional.empty()