Enum CacheEntryKey 

pub enum CacheEntryKey {
    KeyOnly(CompactCacheKey),
    Identified {
        key: CompactCacheKey,
        id: CacheEntryId,
    },
}

The identity of an entry tracked by an eviction manager.

Identified entries combine a logical cache key with storage-defined entry identity. Eviction managers paired with storage that returns identified entries must preserve and compare the complete key. Managers that use only the compact key cannot correctly account for such storage.

Variants

KeyOnly(CompactCacheKey)

An entry identified only by its logical cache key.

Identified

An entry with additional storage-defined identity.

Fields

key: CompactCacheKey

The logical cache key.

id: CacheEntryId

The storage-defined entry ID.

Implementations

impl CacheEntryKey

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

Construct an entry from its logical key and optional storage-defined identity.

pub fn key_only(key: CompactCacheKey) -> Self

Construct an entry identified only by its logical cache key.

pub fn identified(key: CompactCacheKey, id: CacheEntryId) -> Self

Construct an entry with storage-defined identity.

pub fn key(&self) -> &CompactCacheKey

Return the underlying cache key.

pub fn into_key(self) -> CompactCacheKey

Consume the eviction key and return its underlying cache key.

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

Return the storage-defined entry ID, if present.

Trait Implementations

impl Clone for CacheEntryKey

fn clone(&self) -> CacheEntryKey

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CacheEntryKey

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

Formats the value using the given formatter.

impl Default for CacheEntryKey

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CacheEntryKey

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for CacheEntryKey

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

Formats the value using the given formatter.

impl Eq for CacheEntryKey

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

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

Converts to this type from the input type.

impl Hash for CacheEntryKey

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 Ord for CacheEntryKey

fn cmp(&self, other: &CacheEntryKey) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for CacheEntryKey

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for CacheEntryKey

fn partial_cmp(&self, other: &CacheEntryKey) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for CacheEntryKey

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 CacheEntryKey