Jetlang provides a high performance java threading library. The library is based upon Retlang.

The library is a complement to the java.util.concurrent package introduced in 1.5 and should be used for message based concurrency similar to event based actors in Scala.

The library does not provide remote messaging capabilities. It is designed specifically for high performance in-memory messaging. Features¶

* All messages to a particular Fiber are delivered sequentially. Components can easily keep state without synchronizing data access or worrying about thread races.
* Single Fiber interface that can be backed by a dedicated thread or a thread pool.
* Supports single or multiple subscribers for messages.
* Subscriptions for single events or event batching
* Single or recurring event scheduling
* High performance design optimized for low latency and high scalability
* Publishing is thread safe, allowing easy integration with other threading models.
* Low Lock Contention - Minimizing lock contention is critical for performance. Other concurrency solutions are limited by a single lock typically on a central thread pool or message queue. Jetlang is optimized for low lock contention. Without a central bottleneck, performance easily scales to the needs of the application.
* Powerful Async Request/Reply Support
* Single jar with no dependencies except the jdk (1.6+)
* Integrates with any JVM language - jruby, scala, clojure, groovy, etc