Trait FileCache 

pub trait FileCache<V> {
    // Required methods
    fn get(&self, key: &str) -> Result<Option<V>>;
    fn get_stale(&self, key: &str) -> Result<Option<V>>;
    fn set(&self, key: &str, value: &V) -> Result<()>;
    fn remove(&self, key: &str) -> Result<()>;
}

Trait for TTL-based filesystem caching.

Provides a unified interface for caching serializable data with time-to-live validation.

Required Methods

fn get(&self, key: &str) -> Result<Option<V>>

Get a cached value if it exists and is valid.

Arguments

• key - Cache key (filename without extension)

Returns

The cached value if it exists and is within TTL, None otherwise.

fn get_stale(&self, key: &str) -> Result<Option<V>>

Get a cached value regardless of TTL (stale fallback).

Arguments

• key - Cache key (filename without extension)

Returns

The cached value if it exists, None otherwise.

fn set(&self, key: &str, value: &V) -> Result<()>

Set a cached value.

Arguments

• key - Cache key (filename without extension)
• value - Value to cache

fn remove(&self, key: &str) -> Result<()>

Remove a cached value.

Arguments

• key - Cache key (filename without extension)

Implementors

impl<V> FileCache<V> for FileCacheImpl<V>

where V: Serialize + for<'de> Deserialize<'de>,