public class ExclusiveJobExecution
extends Object
We demonstrate how just one running instance of a named job can be created
in the cluster with multiple submissions. The first submission call creates
the job and the other submission calls will return the same job.
This behavior is useful for micro-service deployments where Jet is used
in the embedded mode. Users deploy the same self-contained package into
multiple instances and each instance submits the same job during startup.