qbit-ext/spring/src/main/java/io/advantageous/qbit/spring/config/ClusterConfiguration.java
@Bean
    public EventManager clusteredEventManagerImpl(final EventConnectorHub eventConnectorHub) {
        return EventManagerBuilder.eventManagerBuilder()
                .setEventConnector(eventConnectorHub)
                .setName("CLUSTERED_EVENT_MANAGER").build();
    }
@Bean
    public EventManager clusteredEventManagerImpl(final EventConnectorHub eventConnectorHub) {
        return EventManagerBuilder.eventManagerBuilder()
                .setEventConnector(eventConnectorHub)
                .setName("CLUSTERED_EVENT_MANAGER").build();
    }
Wraps factory method call so we can provide another implementation of interface if needed.

@param eventConnectorHub the cluster of event connectors
@return the event manager