Struct fre::stats::ItemStats

pub struct ItemStats {
    pub item: String,
    pub num_accesses: i32,
    /* private fields */
}

A representation of statistics for a single item

Fields

item: String

num_accesses: i32

Implementations

impl ItemStats

pub fn new(item: String, ref_time: f64, half_life: f64) -> ItemStats

Create a new item

pub fn cmp_score(&self, other: &ItemStats, method: SortMethod) -> Ordering

Compare the score of two items given a sort method

pub fn set_half_life(&mut self, half_life: f64)

Change the half life of the item, maintaining the same frecency

pub fn get_frecency(&self, current_time_secs: f64) -> f64

Calculate the frecency of the item

pub fn set_frecency(&mut self, new: f64)

pub fn update_frecency(&mut self, weight: f64)

update the frecency of the item by the given weight

pub fn update_num_accesses(&mut self, weight: i32)

Update the number of accesses of the item by the given weight

pub fn update_last_access(&mut self, time: f64)

Update the time the item was last accessed

pub fn reset_ref_time(&mut self, new_time: f64)

Reset the reference time and recalculate the last_accessed time

pub fn last_access(&self) -> f64

Timestamp (in nanoseconds since epoch) of the last access

Trait Implementations

impl Clone for ItemStats

fn clone(&self) -> ItemStats

Returns a copy of the value.

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

Performs copy-assignment from source.

impl From<ItemStats> for ItemStatsSerializer

fn from(stats: ItemStats) -> Self

Converts to this type from the input type.