Is it a good method to do mass node updating?

Hi All,

I wrote up a CCK field module which is something like 'Computed field' with specific function and I would like to give it a test on my existing web site. For that, I need to update all related nodes to see if that module works correctly. I do this by the following hook:

Let's say the module name is 'ooxx'.

<?php
function _ooxx_update_nodes($nodes) {
  foreach ($nodes as $key => $nid) {
    $node = node_load($nid);
    node_invoke($node, 'update');
    node_invoke_nodeapi($node, 'update');
  }
}

function ooxx_node_operations() {
  $operations = array(
    'update' => array(
      'lable' => t('Update the selected nodes'),
      'callback' => _ooxx_update_nodes,
    ),
  );
  return $operations;
}
?>

Is it a good way to do that? Or are there already some functions in Drupal core with the same functionnality?

Drake