Apache OpenDAL™ Foyer Service

opendal-service-foyer provides a volatile storage backend backed by the Foyer hybrid cache for applications built with Apache OpenDAL™. Foyer can evict data when the cache is full, so do not use this service for persistent storage.

Use through opendal

Applications should normally enable this service through the opendal facade with the services-foyer feature:

cargo add opendal --features services-foyer

The service is available as opendal::services::Foyer. Configure the service builder, then pass it to opendal::Operator::new.

Use with opendal-core

Add the split crates directly:

cargo add opendal-core opendal-service-foyer

Pass a configured service builder to Operator::new:

use opendal_core::{Operator, OperatorRegistry, Result};
use opendal_service_foyer::{register_foyer_service, Foyer};

fn build_operator(builder: Foyer) -> Result<Operator> {
    Operator::new(builder)
}

fn register_for_uri() {
    register_foyer_service(OperatorRegistry::get());
}

register_for_uri is only needed for scheme-driven construction through Operator::from_uri or Operator::via_iter.

Services that send HTTP requests also require an HTTP transport in OperationContext. See the opendal-core composition example.

Documentation

License

Licensed under the Apache License, Version 2.0.