Clojure Flow: Building Highly Concurrent Dataflow Applications
Clojure's Flow library offers a novel approach to building highly concurrent dataflow applications. It strictly separates application logic from deployment concerns such as topology, execution, communication, lifecycle management, monitoring, and error handling. Developers define processing logic using step-fn functions, while Flow manages process lifecycles and message passing. Step-fns have four arities: describe, init, transition, and transform, handling function description, initialization, lifecycle transitions, and message processing respectively. Flow also provides process monitoring and lifecycle management tools, supporting hot reloading and dynamic adjustments, simplifying the development of highly concurrent applications.