/**
* @param ComparatorInterface $comparator
*
* @return array
*/
private function checkIsSorted(ComparatorInterface $comparator)
{
$collection = $this->valueAsCollection();
$last = null;
foreach ($collection as $item) {
if ($last !== null && $comparator->compare($last, $item) > 0) {
return array($last, $item);
}
}
return array(null, null);
}
/**
* @param ComparatorInterface $criteria
*
* @return $this
*/
public function addSortCriteria(ComparatorInterface $criteria)
{
$criteria->accept($this->comparatorVisitorFactory->create($this));
return $this;
}
