Struct pearl::filter::bloom::Config

pub struct Config {
    pub elements: usize,
    pub hashers_count: usize,
    pub max_buf_bits_count: usize,
    pub buf_increase_step: usize,
    pub preferred_false_positive_rate: f64,
}

Bloom filter configuration parameters.

Fields

elements: usize

records count in one blob.

hashers_count: usize

number of hash functions, the more hash functions. you have, the slower bloom filter, and the quicker it fills up. If you have too few, however, you may suffer too many false positives.

max_buf_bits_count: usize

number of bits in the inner buffer.

buf_increase_step: usize

filter buf increase value. Not used anymore

preferred_false_positive_rate: f64

filter incrementally increases buffer size by step and checks result false positive rate to be less than param. It stops once buffer reaches size of max_buf_bits_count.

Implementations

impl Config

pub fn empty() -> Self

Config to create empty bloom filter

Trait Implementations

impl Clone for Config

fn clone(&self) -> Config

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Config

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Config

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Config

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq<Config> for Config

fn eq(&self, other: &Config) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for Config

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Config