jaRc

jaRc, short for Java Architecture for Reactive Computing, is a fictional open-source framework designed to illustrate a modular approach to building reactive applications in Java. It presents a runtime based on Reactive Streams principles and provides abstractions for sources, operators, and sinks, together with a backpressure policy.

jaRc is organized into a core runtime and a collection of adapters and extensions. The core defines the lifecycle of streams, scheduling, error handling, and resource management. Adapters enable integration with common transport mechanisms such as HTTP, WebSocket, and messaging queues, as well as persistence backends including SQL and NoSQL stores. Extensions offer tooling for testing, monitoring, and deployment.

Key features include support for standard Reactive Streams interfaces and Java's Flow API, a reference implementation of a stream graph compiler that enables operator fusion, backpressure-aware operators, asynchronous execution models, and deterministic error propagation.

Usage scenarios describe building end-to-end data pipelines, real-time dashboards, and microservice event buses. Its modular design aims to simplify testing and reuse across projects, while allowing platform-specific optimizations.

Relation to real-world frameworks: jaRc is inspired by RxJava, Reactor, and Akka Streams, but remains a fictional example used to illustrate concepts in a neutral, wiki-style article.

Availability and licensing: as a fictional concept, there is no official repository or license. The article describes conceptual features common to reactive Java frameworks and is intended for informational purposes.