Interface PeerFilterProvider

    • Method Detail

      • getEarliestKeyCreationTime

        long getEarliestKeyCreationTime()
        Returns the earliest timestamp (seconds since epoch) for which full/bloom-filtered blocks must be downloaded. Blocks with timestamps before this time will only have headers downloaded. 0 requires that all blocks be downloaded, and thus this should default to System.currentTimeMillis()/1000.
      • beginBloomFilterCalculation

        void beginBloomFilterCalculation()
        Called on all registered filter providers before getBloomFilterElementCount() and getBloomFilter(int, double, long) are called. Once called, the provider should ensure that the items it will want to insert into the filter don't change. The reason is that all providers will have their element counts queried, and then a filter big enough for all of them will be specified. So the provider must use consistent state. There is guaranteed to be a matching call to endBloomFilterCalculation() that can be used to e.g. unlock a lock.
      • getBloomFilterElementCount

        int getBloomFilterElementCount()
        Gets the number of elements that will be added to a bloom filter returned by getBloomFilter(int, double, long)
      • getBloomFilter

        BloomFilter getBloomFilter​(int size,
                                   double falsePositiveRate,
                                   long nTweak)
        Gets a bloom filter that contains all the necessary elements for the listener to receive relevant transactions. Default value should be an empty bloom filter with the given size, falsePositiveRate, and nTweak.