Ratchet

RatchetInject one service. Submit a method reference.

Persistent, retrying background jobs on plain Jakarta EE. No proprietary dependencies, no message broker, and they run unchanged on whichever application server you already use.Persistent, retrying background jobs on plain Jakarta EE. No broker, no proprietary deps.

@Inject
JobSchedulerService scheduler;

scheduler
    .enqueue(() -> ship(orderId))
    .withMaxRetries(3)
    .submit();

@Inject JobSchedulerService scheduler; public void placeOrder(UUID orderId) { scheduler.enqueue(() -> orders.process(orderId)) .withMaxRetries(3) .withBackoff( BackoffPolicy.EXPONENTIAL, Duration.ofSeconds(2)) .withTags("orders", "fulfillment") .submit(); }

CDI-native API

Inject JobSchedulerService like any other bean and hand it a method reference. Ratchet persists it, runs it on exactly one node, retries on failure, and fires lifecycle events you can observe.

Resilience built in

Retries with fixed or exponential backoff, a circuit breaker for flaky downstreams, a dead-letter queue, and pause, resume, and cancel at runtime. It's part of the scheduler contract, not a library you bolt on.

Override any default

Every default is a bean you can replace. Encrypt payloads with your own KMS, or swap the cluster coordinator, retry policy, or store with a standard @Alternative. It's plain CDI, not a plugin system you have to learn.

Native-image jobs on Quarkus

The same persistent, retrying jobs run on Quarkus, on the JVM and as a GraalVM native image. The extension provisions a dev database, supplies Ratchet's persistence unit, and registers the native metadata. Quarkus 3.20+, SQL or MongoDB.

Query and report

Read job and cluster state through a typed query service. Filter by principal, page large result sets, and build operational views without reaching into the store.

Runs where you run

The same job code runs unchanged on WildFly, Open Liberty, Payara, and GlassFish. A published conformance matrix shows what passes on each server and database. No rewrite, no broker, no lock-in.