@Override
  public void exportGroupChangePolicyAndLimits(
      URI storageURI,
      URI exportMaskURI,
      URI exportGroupURI,
      List<URI> volumeURIs,
      URI newVpoolURI,
      boolean rollback,
      String token)
      throws Exception {
    // ExportGroup and ExportMask URIs will be null for HDS.
    VolumeUpdateCompleter taskCompleter = new VolumeUpdateCompleter(volumeURIs, token);

    StorageSystem storage = _dbClient.queryObject(StorageSystem.class, storageURI);
    VirtualPool newVpool = _dbClient.queryObject(VirtualPool.class, newVpoolURI);
    BlockStorageDevice device = getDevice();
    device.updatePolicyAndLimits(storage, null, volumeURIs, newVpool, rollback, taskCompleter);
  }