docs: @Override
  	public void index(String oid, String pid) throws IndexerException {
  		try {
  			DigitalObject object = storage.getObject(oid);
  			Payload payload = object.getPayload(pid);
  			index(object, payload);
  		} catch (StorageException ex) {
  			throw new IndexerException(ex);
  		}
  	}