Enum CacheEntryKeyRef 

pub enum CacheEntryKeyRef<'a> {
    KeyOnly(&'a CompactCacheKey),
    Identified {
        key: &'a CompactCacheKey,
        id: CacheEntryId,
    },
}

A borrowed cache entry identity used for exact eviction-manager lookups.

This type hashes identically to the equivalent owned CacheEntryKey.

Variants

KeyOnly(&'a CompactCacheKey)

An entry identified only by its logical cache key.

Identified

An entry with additional storage-defined identity.

Fields

key: &'a CompactCacheKey

The logical cache key.

id: CacheEntryId

The storage-defined entry ID.

Implementations

impl<'a> CacheEntryKeyRef<'a>

pub fn from_entry_id(key: &'a CompactCacheKey, id: Option<CacheEntryId>) -> Self

Construct a borrowed entry identity from its logical key and storage-defined ID, if any.

The ID must match the entry originally admitted to an eviction manager. A different ID is a different entry and will not remove or otherwise match the admitted entry.

pub fn key(self) -> &'a CompactCacheKey

Return the underlying cache key.

pub fn entry_id(self) -> Option<CacheEntryId>

Return the storage-defined entry ID, if present.

Trait Implementations

impl<'a> Clone for CacheEntryKeyRef<'a>

fn clone(&self) -> CacheEntryKeyRef<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for CacheEntryKeyRef<'a>

impl<'a> Debug for CacheEntryKeyRef<'a>

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

Formats the value using the given formatter.

impl Display for CacheEntryKeyRef<'_>

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

Formats the value using the given formatter.

impl<'a> Eq for CacheEntryKeyRef<'a>

impl<'a> From<&'a CacheEntryKey> for CacheEntryKeyRef<'a>

fn from(entry: &'a CacheEntryKey) -> Self

Converts to this type from the input type.

impl<'a> Hash for CacheEntryKeyRef<'a>

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<'a> PartialEq for CacheEntryKeyRef<'a>

fn eq(&self, other: &CacheEntryKeyRef<'a>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<'a> StructuralPartialEq for CacheEntryKeyRef<'a>