Enum CacheResult 

pub enum CacheResult<T> {
    Hit(CacheEntry<T>),
    Stale(CacheEntry<T>),
    Miss,
    NegativeHit,
}

Result of a cache lookup operation

Variants

Hit(CacheEntry<T>)

Fresh cache hit

Stale(CacheEntry<T>)

Stale but usable (within stale-while-revalidate window)

Miss

Cache miss

NegativeHit

Negative cache hit (known missing/not found)

Implementations

impl<T> CacheResult<T>

pub fn is_hit(&self) -> bool

Check if this is a fresh hit

pub fn is_miss(&self) -> bool

Check if this is a miss

pub fn is_usable(&self) -> bool

Check if result is usable (hit or stale)

pub fn is_stale(&self) -> bool

Check if stale (needs revalidation)

pub fn value(self) -> Option<T>

Extract the value, consuming the result

pub fn entry(self) -> Option<CacheEntry<T>>

Extract the full entry, consuming the result

pub fn map<U, F>(self, f: F) -> CacheResult<U>

where F: FnOnce(T) -> U,

Map the value if present

Trait Implementations

impl<T> Clone for CacheResult<T>

where T: Clone,

fn clone(&self) -> CacheResult<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Debug for CacheResult<T>

where T: Debug,

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

Formats the value using the given formatter.