Remote-observer-pattern-poc-root is a project mainly written in Java, it's free.
remote-observer-pattern-poc-root
This application shows how one could implement observer pattern at remote level
The project consists of one maven root project and 4 modules : core, server, server-test, ui core : the core (services + domain) server : webapp which exposes some webservices with CXF and ActiveMQ server-test : tests webservices and remote notifications ui : triggers changes and observes changes notifications
To build the example
To run integration tests
To visually run the example