/**
* Creates a deep clone of the given collection
*
* @param Database|Iterator $originalCollection
* @return \SplObjectStorage
*/
protected function _cloneCollection($originalCollection)
{
// If the collection is immutable just return it
if ($originalCollection instanceof Immutable) {
return $originalCollection;
}
if ($originalCollection instanceof DatabaseInterface) {
return clone $originalCollection;
}
$collection = new SplFixedArray($originalCollection->count());
$i = 0;
foreach ($originalCollection as $item) {
$collection[$i] = clone $item;
$i++;
}
$collection->rewind();
return $collection;
}
