code: public BatchResult addBatch(ApplicationDefinition appDef, OlapBatch batch) {
          return OLAPService.instance().addBatch(appDef, MONO_SHARD_NAME, batch);
      }
docs: Add the given batch of object updates for the given application. The updates may
  be new, updated, or deleted objects. The updates are applied to the application's
  mono shard.
  
  @param appDef    Application to which update batch is applied.
  @param batch     {@link OlapBatch} of object adds, updates, and/or deletes.
  @return          {@link BatchResult} reflecting status of update.