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<?php
declare(strict_types=1);
namespace Doctrine\ORM\Cache;
use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\Cache\Persister\CachedPersister;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\ORM\Mapping\ClassMetadata;
use Doctrine\ORM\PersistentCollection;
use Doctrine\ORM\Query;
use Doctrine\ORM\UnitOfWork;
use function assert;
/**
* Default hydrator cache for collections
*/
class DefaultCollectionHydrator implements CollectionHydrator
{
private readonly UnitOfWork $uow;
/** @var array<string,mixed> */
private static array $hints = [Query::HINT_CACHE_ENABLED => true];
public function __construct(
private readonly EntityManagerInterface $em,
) {
$this->uow = $em->getUnitOfWork();
}
public function buildCacheEntry(ClassMetadata $metadata, CollectionCacheKey $key, array|Collection $collection): CollectionCacheEntry
{
$data = [];
foreach ($collection as $index => $entity) {
$data[$index] = new EntityCacheKey($metadata->rootEntityName, $this->uow->getEntityIdentifier($entity));
}
return new CollectionCacheEntry($data);
}
public function loadCacheEntry(ClassMetadata $metadata, CollectionCacheKey $key, CollectionCacheEntry $entry, PersistentCollection $collection): array|null
{
$assoc = $metadata->associationMappings[$key->association];
$targetPersister = $this->uow->getEntityPersister($assoc->targetEntity);
assert($targetPersister instanceof CachedPersister);
$targetRegion = $targetPersister->getCacheRegion();
$list = [];
/** @var EntityCacheEntry[]|null $entityEntries */
$entityEntries = $targetRegion->getMultiple($entry);
if ($entityEntries === null) {
return null;
}
foreach ($entityEntries as $index => $entityEntry) {
$entity = $this->uow->createEntity(
$entityEntry->class,
$entityEntry->resolveAssociationEntries($this->em),
self::$hints,
);
$collection->hydrateSet($index, $entity);
$list[$index] = $entity;
}
$this->uow->hydrationComplete();
return $list;
}
}
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