Struct CustomCache 

pub struct CustomCache { /* private fields */ }

This module provides various cache implementations and a shared DEKCacheTrait for storing and retrieving data by an identifier. A custom cache that implements the DEKCacheTrait.

This structure provides a flexible caching mechanism that delegates to user-defined closures for retrieving and storing data.

Implementations

impl CustomCache

Implementations for creating and working with a CustomCache.

pub fn new<G, S>(get_fn: G, set_fn: S) -> Self

where G: Fn(&String) -> Option<Vec<u8>> + Send + Sync + 'static, S: Fn(String, Vec<u8>) -> Result<Vec<u8>, CacheError> + Send + Sync + 'static,

Creates a new CustomCache with the specified get and set closures.

Arguments

• get_fn - A closure that receives a &String reference to a key and returns an optional Vec<u8> of data.
• set_fn - A closure that receives a String key and a Vec<u8> to store, returning a Result with either the stored data or a CacheError.

Returns

A CustomCache instance configured with the provided closures.

Trait Implementations

impl DEKCacheTrait for CustomCache

fn get(&self, k: &String) -> Option<Vec<u8>>

Retrieves data from the cache for the provided key.

Arguments

• k - A reference to the string key for which data should be retrieved.

Returns

An Option<Vec<u8>> containing the cached data if found, or None if not present.

fn set(&self, k: String, v: Vec<u8>) -> Result<Vec<u8>, CacheError>

Stores data in the cache for the given key.

Arguments

• k - A string key under which the value should be stored.
• v - A vector of bytes representing the data to be cached.

Returns

A Result<Vec<u8>, CacheError> indicating either successful storage (with the stored bytes) or a CacheError if something went wrong.

type Identifier = String