Launching events to elements that react to these events is a good mechanism for solving many kinds of problems during development. However, sometimes it is necessary to call a class method without blocking the process until this method completes the execution.

An asynchronous EJB method is a mechanism of EJB that allows the client to call a method and receive its return as soon as the method is invoked. The return of a method is in control of the asynchronous call represented by the Future<T> object. The client can control the execution of the asynchronous method. These actions can cancel the invocation method, check whether the invocation is completed, check whether the invocation has ...