code: @Override
      public Collection<Task> getAppTasks(ApplicationDefinition appDef) {
          checkServiceState();
          List<Task> appTasks = new ArrayList<>();
          String agingFreq = appDef.getOption(CommonDefs.OPT_AGING_CHECK_FREQ);
          if (agingFreq != null) {
              appTasks.add(new OLAPDataAger(appDef, agingFreq));
          }
          String autoMergeFreq = appDef.getOption("auto-merge");
          if (autoMergeFreq != null) {
              appTasks.add(new OLAPMerger(appDef, autoMergeFreq));
          }
          return appTasks;
      }
docs: validateSchema