/**
* Checks if two models are equal.
* Two models are equal if and only if the two RDF graphs they represent are isomorphic.
*
* Warning: This method doesn't work correct with models where the same blank node has different
* identifiers in the two models. We will correct this in a future version.
*
* @access public
* @param object model &$that
* @throws phpErrpr
* @return boolean
*/
function equals(&$that)
{
if (is_a($that, 'ResModel')) {
return $this->model->equals($that->getModel());
}
return $this->model->equals($that);
}
