/**
* {@inheritdoc}
*/
public function getMultiple(CollectionCacheEntry $collection)
{
$keysToRetrieve = array();
foreach ($collection->identifiers as $index => $key) {
$keysToRetrieve[$index] = $this->name . '_' . $key->hash;
}
$items = $this->cache->fetchMultiple($keysToRetrieve);
if (count($items) !== count($keysToRetrieve)) {
return null;
}
$returnableItems = array();
foreach ($keysToRetrieve as $index => $key) {
$returnableItems[$index] = $items[$key];
}
return $returnableItems;
}
