Struct CacheEntry 

pub struct CacheEntry {
    pub study_id: String,
    pub series_id: String,
    pub slice_index: usize,
    pub quality: ImageQuality,
    pub tier: CacheTier,
    pub state: CacheEntryState,
    pub size_bytes: usize,
    pub created_at: Instant,
    pub last_accessed: Instant,
    pub access_count: u64,
    pub data: Option<Arc<Vec<u8>>>,
}

A single cache entry (image at a specific quality level)

Fields

study_id: String

Study ID this entry belongs to

series_id: String

Series ID within the study

slice_index: usize

Slice index (for multi-slice series)

quality: ImageQuality

Quality level of this entry

tier: CacheTier

Current cache tier

state: CacheEntryState

Entry state

size_bytes: usize

Memory size in bytes

created_at: Instant

When entry was created

last_accessed: Instant

When entry was last accessed

access_count: u64

Access count for frequency tracking

data: Option<Arc<Vec<u8>>>

Pixel data (if loaded)

Implementations

impl CacheEntry

pub fn new( study_id: String, series_id: String, slice_index: usize, quality: ImageQuality, tier: CacheTier, ) -> Self

Create a new cache entry

pub fn set_ready(&mut self, data: Vec<u8>)

Mark entry as ready with data

pub fn set_failed(&mut self)

Mark entry as failed

pub fn touch(&mut self)

Record an access

pub fn age(&self) -> Duration

Get age since last access

pub fn key(&self) -> String

Generate cache key

Trait Implementations

impl Clone for CacheEntry

fn clone(&self) -> CacheEntry

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.