Struct CacheEntry 

pub struct CacheEntry {
    pub key: CacheKey,
    pub response_json: String,
    pub accessed_graphs: Vec<String>,
    pub accessed_predicates: Vec<String>,
    pub created_at: Instant,
    pub ttl: Duration,
    pub hit_count: u64,
}

A single cached GraphQL response entry.

Fields

key: CacheKey

The cache key associated with this entry.

response_json: String

The serialised JSON response body.

accessed_graphs: Vec<String>

RDF named graph IRIs that were read when producing this response. Used to invalidate the entry when any of these graphs changes.

accessed_predicates: Vec<String>

RDF predicates that were accessed — used for finer-grained invalidation.

created_at: Instant

When this entry was inserted.

ttl: Duration

How long this entry is valid for.

hit_count: u64

Number of times this entry has been served from cache.

Implementations

impl CacheEntry

pub fn is_expired(&self) -> bool

Returns true if this entry has lived longer than its TTL.

pub fn age(&self) -> Duration

Returns the age of this entry.

pub fn remaining_ttl(&self) -> Duration

Returns how much TTL remains (saturating at zero for expired entries).

Trait Implementations

impl Clone for CacheEntry

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CacheEntry

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

Formats the value using the given formatter.