Package org.redisson.api

Interface RBloomFilterAsync<T>

Type Parameters:
T - - type of object
All Superinterfaces:
RExpirableAsync, RObjectAsync
All Known Subinterfaces:
RBloomFilter<T>
All Known Implementing Classes:
RedissonBloomFilter
public interface RBloomFilterAsync<T> extends RExpirableAsync
Distributed implementation of Bloom filter based on Highway 128-bit hash.
Author:
Nikita Koksharov

  • Method Details

    • addAsync

      RFuture<Boolean> addAsync(T object)
      Adds element
      Parameters:
      object - - element to add
      Returns:
      true if element has been added successfully false if element is already present

    • addAsync

      RFuture<Long> addAsync(Collection<T> elements)
      Adds elements
      Parameters:
      elements - elements to add
      Returns:
      number of added elements

    • containsAsync

      RFuture<Boolean> containsAsync(T object)
      Checks for element presence
      Parameters:
      object - element
      Returns:
      true if element is present false if element is not present

    • containsAsync

      RFuture<Long> containsAsync(Collection<T> elements)
      Checks for elements presence
      Parameters:
      elements - elements to check presence
      Returns:
      number of elements present

    • tryInitAsync

      RFuture<Boolean> tryInitAsync(long expectedInsertions, double falseProbability)
      Initializes Bloom filter params (size and hashIterations) calculated from expectedInsertions and falseProbability Stores config to Redis server.
      Parameters:
      expectedInsertions - - expected amount of insertions per element
      falseProbability - - expected false probability
      Returns:
      true if Bloom filter initialized false if Bloom filter already has been initialized

    • getExpectedInsertionsAsync

      RFuture<Long> getExpectedInsertionsAsync()
      Returns expected amount of insertions per element. Calculated during bloom filter initialization.
      Returns:
      expected amount of insertions per element

    • getFalseProbabilityAsync

      RFuture<Double> getFalseProbabilityAsync()
      Returns false probability of element presence. Calculated during bloom filter initialization.
      Returns:
      false probability of element presence

    • getSizeAsync

      RFuture<Long> getSizeAsync()
      Returns number of bits in Redis memory required by this instance
      Returns:
      number of bits

    • getHashIterationsAsync

      RFuture<Integer> getHashIterationsAsync()
      Returns hash iterations amount used per element. Calculated during bloom filter initialization.
      Returns:
      hash iterations amount

    • countAsync

      RFuture<Long> countAsync()
      Calculates probabilistic number of elements already added to Bloom filter.
      Returns:
      probabilistic number of elements