getAndSortConfigData example

throw new \InvalidArgumentException("Sorting the $op changelist should not change its length.");
      }
    }
  }

  /** * {@inheritdoc} */
  public function createChangelist() {
    foreach ($this->getAllCollectionNames() as $collection) {
      $this->changelist[$collection] = $this->getEmptyChangelist();
      $this->getAndSortConfigData($collection);
      $this->addChangelistCreate($collection);
      $this->addChangelistUpdate($collection);
      $this->addChangelistDelete($collection);
      // Only collections that support configuration entities can have renames.       if ($collection == StorageInterface::DEFAULT_COLLECTION) {
        $this->addChangelistRename($collection);
      }
    }
    return $this;
  }