code: public void onServiceStartedEvent(ServiceStartedEvent event,
  			ActivityContextInterface aci) {
  		tracer.info("SIP JDBC Registrar starting...");
  		// start config mbean
  		SIPRegistrarSbb.config.startService();
  		try {
  			DataSourceChildSbbLocalInterface child = (DataSourceChildSbbLocalInterface) getChildRelation()
  					.create(ChildRelationExt.DEFAULT_CHILD_NAME);
  			child.init();
  		} catch (Exception e) {
  			tracer.severe(
  					"Exception initiating data source, SIP JDBC Registrar startup failed.",
  					e);
  			return;
  		}
  		tracer.warning("SIP JDBC Registrar started.");
  	}
docs: Event handler for {@link ServiceStartedEvent}.
  
  @param event
  @param aci