/**
* Compares two models.
*
* @param $thisModel First Model.
* @param $thatModel Second Model.
*
* @return boolean
*/
function compare($thisModel, $thatModel)
{
$thisModeltriples = null;
$thatModeltriples = null;
if (is_a($thisModel, "DbModel")) {
$thisModeltriples = $thisModel->getMemModel();
} else {
$thisModeltriples = $thisModel;
}
if (is_a($thatModel, "DbModel")) {
$thatModeltriples = $thatModel->getMemModel();
} else {
$thatModeltriples = $thatModel;
}
$sortArray1 = ModelComparator::buildSortArray($thisModeltriples->triples);
$sortArray2 = ModelComparator::buildSortArray($thatModeltriples->triples);
$renamedArray1 = ModelComparator::renameBlanks($sortArray1);
$renamedArray2 = ModelComparator::renameBlanks($sortArray2);
return ModelComparator::compareTriples($renamedArray1, $renamedArray2);
}
/**
* Check if two models are equal.
* Two models are equal if and only if the two RDF graphs they represent are isomorphic.
*
* Warning: This method doesn't work correct with models where the same blank node has different
* identifiers in the two models. We will correct this in a future version.
*
* @param object model &$that
* @return boolean
* @throws PhpError
* @access public
*/
function equals(&$that)
{
if (!is_a($that, 'Model')) {
$errmsg = RDFAPI_ERROR . '(class: DbModel; method: equals): Model expected.';
trigger_error($errmsg, E_USER_ERROR);
}
if ($this->size() != $that->size()) {
return FALSE;
}
include_once RDFAPI_INCLUDE_DIR . "util/ModelComparator.php";
return ModelComparator::compare($this, $that);
}