code: public void scrollForIndexing(DbSession session, @Nullable String projectUuid, ResultHandler<ComponentDto> handler) {
      mapper(session).scrollForIndexing(projectUuid, handler);
    }
docs: Selects all components that are relevant for indexing. The result is not returned (since it is usually too big), but handed over to the <code>handler</code>
  
  @param session     the database session
  @param projectUuid the project uuid, which is selected with all of its children
  @param handler     the action to be applied to every result