protected function getRecursiveView()
{
return array('top_nodes' => array('contents' => '1', 'children' => array(array('contents' => '2', 'children' => array(array('contents' => 3, 'children' => array()))), array('contents' => '4', 'children' => array(array('contents' => '5', 'children' => array(array('contents' => '6', 'children' => array()))))))));
}