Struct CacheEntry 

pub struct CacheEntry<K, V, M = ()>
where
    K: Clone + Hash + Eq,
    V: Clone,
    M: Clone,
{
    pub key: K,
    pub value: V,
    pub metadata: M,
    pub timestamp: DateTime<Utc>,
    pub expiry: Option<DateTime<Utc>>,
    pub access_count: u64,
    pub last_accessed: DateTime<Utc>,
}

A cache entry containing a key-value pair with metadata

Fields

key: K

The cache key

value: V

The cached value

metadata: M

Optional metadata associated with the entry

timestamp: DateTime<Utc>

Timestamp when the entry was created

expiry: Option<DateTime<Utc>>

Optional expiry time for TTL-based eviction

access_count: u64

Number of times this entry has been accessed

last_accessed: DateTime<Utc>

Last access timestamp

Implementations

impl<K, V, M> CacheEntry<K, V, M>

where K: Clone + Hash + Eq, V: Clone, M: Clone + Default,

pub fn new(key: K, value: V) -> Self

Create a new cache entry with default metadata

impl<K, V, M> CacheEntry<K, V, M>

where K: Clone + Hash + Eq, V: Clone, M: Clone,

pub fn with_metadata(key: K, value: V, metadata: M) -> Self

Create a new cache entry with metadata

pub fn with_ttl(self, ttl: Duration) -> Self

Set expiry time for the entry

pub fn is_expired(&self) -> bool

Check if the entry has expired

pub fn record_access(&mut self)

Update access statistics

pub fn age(&self) -> Duration

Get the age of the entry

Trait Implementations

impl<K, V, M> Clone for CacheEntry<K, V, M>

where K: Clone + Hash + Eq + Clone, V: Clone + Clone, M: Clone + Clone,

fn clone(&self) -> CacheEntry<K, V, M>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<K, V, M> Debug for CacheEntry<K, V, M>

where K: Clone + Hash + Eq + Debug, V: Clone + Debug, M: Clone + Debug,

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

Formats the value using the given formatter.

impl<'de, K, V, M> Deserialize<'de> for CacheEntry<K, V, M>

where K: Clone + Hash + Eq + Deserialize<'de>, V: Clone + Deserialize<'de>, M: Clone + Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<K, V, M> Searchable for CacheEntry<K, V, M>

where K: Clone + Hash + Eq + Display, V: Clone + Debug, M: Clone + EntryMetadata,

Implement Searchable for common types

type Query = SearchQuery

Query type for searching

fn matches(&self, query: &Self::Query) -> bool

Check if this entry matches the query

impl<K, V, M> Serialize for CacheEntry<K, V, M>

where K: Clone + Hash + Eq + Serialize, V: Clone + Serialize, M: Clone + Serialize,

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

where __S: Serializer,

Serialize this value into the given Serde serializer.