org.bitcoinj.net

Class FilterMerger

java.lang.Object

org.bitcoinj.net.FilterMerger

public class FilterMerger
extends Object

A reusable object that will calculate, given a list of PeerFilterProviders, a merged BloomFilter and earliest key time for all of them. Used by the PeerGroup class internally.

Thread safety: this class tracks the element count of the last filter it calculated and so must be synchronised externally or used from only one thread. It will acquire a lock on each filter in turn before performing the calculation because the providers may be mutated in other threads in parallel, but global consistency is required to produce a merged filter.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FilterMerger.Result

Constructor Summary

Constructors

Constructor and Description
FilterMerger(double bloomFilterFPRate)

Method Summary

Modifier and Type	Method and Description
FilterMerger.Result	calculate(ImmutableList<PeerFilterProvider> providers)
double	getBloomFilterFPRate()
BloomFilter	getLastFilter()
void	setBloomFilterFPRate(double bloomFilterFPRate)

Methods inherited from class java.lang.Object

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

Constructor Detail

FilterMerger

public FilterMerger(double bloomFilterFPRate)

Method Detail

calculate

public FilterMerger.Result calculate(ImmutableList<PeerFilterProvider> providers)

setBloomFilterFPRate

public void setBloomFilterFPRate(double bloomFilterFPRate)

getBloomFilterFPRate

public double getBloomFilterFPRate()

getLastFilter

public BloomFilter getLastFilter()