- <?php
- declare(strict_types=1);
- namespace Doctrine\ORM;
- use BackedEnum;
- use DateTimeInterface;
- use Doctrine\Common\Collections\ArrayCollection;
- use Doctrine\Common\Collections\Collection;
- use Doctrine\Common\EventManager;
- use Doctrine\DBAL\Connections\PrimaryReadReplicaConnection;
- use Doctrine\DBAL\LockMode;
- use Doctrine\Deprecations\Deprecation;
- use Doctrine\ORM\Cache\Persister\CachedPersister;
- use Doctrine\ORM\Event\ListenersInvoker;
- use Doctrine\ORM\Event\OnFlushEventArgs;
- use Doctrine\ORM\Event\PostFlushEventArgs;
- use Doctrine\ORM\Event\PostPersistEventArgs;
- use Doctrine\ORM\Event\PostRemoveEventArgs;
- use Doctrine\ORM\Event\PostUpdateEventArgs;
- use Doctrine\ORM\Event\PreFlushEventArgs;
- use Doctrine\ORM\Event\PrePersistEventArgs;
- use Doctrine\ORM\Event\PreRemoveEventArgs;
- use Doctrine\ORM\Event\PreUpdateEventArgs;
- use Doctrine\ORM\Exception\ORMException;
- use Doctrine\ORM\Exception\UnexpectedAssociationValue;
- use Doctrine\ORM\Id\AssignedGenerator;
- use Doctrine\ORM\Internal\CommitOrderCalculator;
- use Doctrine\ORM\Internal\HydrationCompleteHandler;
- use Doctrine\ORM\Mapping\ClassMetadata;
- use Doctrine\ORM\Mapping\ClassMetadataInfo;
- use Doctrine\ORM\Mapping\MappingException;
- use Doctrine\ORM\Mapping\Reflection\ReflectionPropertiesGetter;
- use Doctrine\ORM\Persisters\Collection\CollectionPersister;
- use Doctrine\ORM\Persisters\Collection\ManyToManyPersister;
- use Doctrine\ORM\Persisters\Collection\OneToManyPersister;
- use Doctrine\ORM\Persisters\Entity\BasicEntityPersister;
- use Doctrine\ORM\Persisters\Entity\EntityPersister;
- use Doctrine\ORM\Persisters\Entity\JoinedSubclassPersister;
- use Doctrine\ORM\Persisters\Entity\SingleTablePersister;
- use Doctrine\ORM\Utility\IdentifierFlattener;
- use Doctrine\Persistence\Mapping\RuntimeReflectionService;
- use Doctrine\Persistence\NotifyPropertyChanged;
- use Doctrine\Persistence\ObjectManagerAware;
- use Doctrine\Persistence\PropertyChangedListener;
- use Doctrine\Persistence\Proxy;
- use Exception;
- use InvalidArgumentException;
- use RuntimeException;
- use Throwable;
- use UnexpectedValueException;
- use function array_combine;
- use function array_diff_key;
- use function array_filter;
- use function array_key_exists;
- use function array_map;
- use function array_merge;
- use function array_pop;
- use function array_sum;
- use function array_values;
- use function assert;
- use function count;
- use function current;
- use function func_get_arg;
- use function func_num_args;
- use function get_class;
- use function get_debug_type;
- use function implode;
- use function in_array;
- use function is_array;
- use function is_object;
- use function method_exists;
- use function reset;
- use function spl_object_id;
- use function sprintf;
- /**
-  * The UnitOfWork is responsible for tracking changes to objects during an
-  * "object-level" transaction and for writing out changes to the database
-  * in the correct order.
-  *
-  * Internal note: This class contains highly performance-sensitive code.
-  *
-  * @psalm-import-type AssociationMapping from ClassMetadataInfo
-  */
- class UnitOfWork implements PropertyChangedListener
- {
-     /**
-      * An entity is in MANAGED state when its persistence is managed by an EntityManager.
-      */
-     public const STATE_MANAGED = 1;
-     /**
-      * An entity is new if it has just been instantiated (i.e. using the "new" operator)
-      * and is not (yet) managed by an EntityManager.
-      */
-     public const STATE_NEW = 2;
-     /**
-      * A detached entity is an instance with persistent state and identity that is not
-      * (or no longer) associated with an EntityManager (and a UnitOfWork).
-      */
-     public const STATE_DETACHED = 3;
-     /**
-      * A removed entity instance is an instance with a persistent identity,
-      * associated with an EntityManager, whose persistent state will be deleted
-      * on commit.
-      */
-     public const STATE_REMOVED = 4;
-     /**
-      * Hint used to collect all primary keys of associated entities during hydration
-      * and execute it in a dedicated query afterwards
-      *
-      * @see https://www.doctrine-project.org/projects/doctrine-orm/en/stable/reference/dql-doctrine-query-language.html#temporarily-change-fetch-mode-in-dql
-      */
-     public const HINT_DEFEREAGERLOAD = 'deferEagerLoad';
-     /**
-      * The identity map that holds references to all managed entities that have
-      * an identity. The entities are grouped by their class name.
-      * Since all classes in a hierarchy must share the same identifier set,
-      * we always take the root class name of the hierarchy.
-      *
-      * @var mixed[]
-      * @psalm-var array<class-string, array<string, object|null>>
-      */
-     private $identityMap = [];
-     /**
-      * Map of all identifiers of managed entities.
-      * Keys are object ids (spl_object_id).
-      *
-      * @var mixed[]
-      * @psalm-var array<int, array<string, mixed>>
-      */
-     private $entityIdentifiers = [];
-     /**
-      * Map of the original entity data of managed entities.
-      * Keys are object ids (spl_object_id). This is used for calculating changesets
-      * at commit time.
-      *
-      * Internal note: Note that PHPs "copy-on-write" behavior helps a lot with memory usage.
-      *                A value will only really be copied if the value in the entity is modified
-      *                by the user.
-      *
-      * @psalm-var array<int, array<string, mixed>>
-      */
-     private $originalEntityData = [];
-     /**
-      * Map of entity changes. Keys are object ids (spl_object_id).
-      * Filled at the beginning of a commit of the UnitOfWork and cleaned at the end.
-      *
-      * @psalm-var array<int, array<string, array{mixed, mixed}>>
-      */
-     private $entityChangeSets = [];
-     /**
-      * The (cached) states of any known entities.
-      * Keys are object ids (spl_object_id).
-      *
-      * @psalm-var array<int, self::STATE_*>
-      */
-     private $entityStates = [];
-     /**
-      * Map of entities that are scheduled for dirty checking at commit time.
-      * This is only used for entities with a change tracking policy of DEFERRED_EXPLICIT.
-      * Keys are object ids (spl_object_id).
-      *
-      * @psalm-var array<class-string, array<int, mixed>>
-      */
-     private $scheduledForSynchronization = [];
-     /**
-      * A list of all pending entity insertions.
-      *
-      * @psalm-var array<int, object>
-      */
-     private $entityInsertions = [];
-     /**
-      * A list of all pending entity updates.
-      *
-      * @psalm-var array<int, object>
-      */
-     private $entityUpdates = [];
-     /**
-      * Any pending extra updates that have been scheduled by persisters.
-      *
-      * @psalm-var array<int, array{object, array<string, array{mixed, mixed}>}>
-      */
-     private $extraUpdates = [];
-     /**
-      * A list of all pending entity deletions.
-      *
-      * @psalm-var array<int, object>
-      */
-     private $entityDeletions = [];
-     /**
-      * New entities that were discovered through relationships that were not
-      * marked as cascade-persist. During flush, this array is populated and
-      * then pruned of any entities that were discovered through a valid
-      * cascade-persist path. (Leftovers cause an error.)
-      *
-      * Keys are OIDs, payload is a two-item array describing the association
-      * and the entity.
-      *
-      * @var object[][]|array[][] indexed by respective object spl_object_id()
-      */
-     private $nonCascadedNewDetectedEntities = [];
-     /**
-      * All pending collection deletions.
-      *
-      * @psalm-var array<int, PersistentCollection<array-key, object>>
-      */
-     private $collectionDeletions = [];
-     /**
-      * All pending collection updates.
-      *
-      * @psalm-var array<int, PersistentCollection<array-key, object>>
-      */
-     private $collectionUpdates = [];
-     /**
-      * List of collections visited during changeset calculation on a commit-phase of a UnitOfWork.
-      * At the end of the UnitOfWork all these collections will make new snapshots
-      * of their data.
-      *
-      * @psalm-var array<int, PersistentCollection<array-key, object>>
-      */
-     private $visitedCollections = [];
-     /**
-      * The EntityManager that "owns" this UnitOfWork instance.
-      *
-      * @var EntityManagerInterface
-      */
-     private $em;
-     /**
-      * The entity persister instances used to persist entity instances.
-      *
-      * @psalm-var array<string, EntityPersister>
-      */
-     private $persisters = [];
-     /**
-      * The collection persister instances used to persist collections.
-      *
-      * @psalm-var array<string, CollectionPersister>
-      */
-     private $collectionPersisters = [];
-     /**
-      * The EventManager used for dispatching events.
-      *
-      * @var EventManager
-      */
-     private $evm;
-     /**
-      * The ListenersInvoker used for dispatching events.
-      *
-      * @var ListenersInvoker
-      */
-     private $listenersInvoker;
-     /**
-      * The IdentifierFlattener used for manipulating identifiers
-      *
-      * @var IdentifierFlattener
-      */
-     private $identifierFlattener;
-     /**
-      * Orphaned entities that are scheduled for removal.
-      *
-      * @psalm-var array<int, object>
-      */
-     private $orphanRemovals = [];
-     /**
-      * Read-Only objects are never evaluated
-      *
-      * @var array<int, true>
-      */
-     private $readOnlyObjects = [];
-     /**
-      * Map of Entity Class-Names and corresponding IDs that should eager loaded when requested.
-      *
-      * @psalm-var array<class-string, array<string, mixed>>
-      */
-     private $eagerLoadingEntities = [];
-     /** @var bool */
-     protected $hasCache = false;
-     /**
-      * Helper for handling completion of hydration
-      *
-      * @var HydrationCompleteHandler
-      */
-     private $hydrationCompleteHandler;
-     /** @var ReflectionPropertiesGetter */
-     private $reflectionPropertiesGetter;
-     /**
-      * Initializes a new UnitOfWork instance, bound to the given EntityManager.
-      */
-     public function __construct(EntityManagerInterface $em)
-     {
-         $this->em                         = $em;
-         $this->evm                        = $em->getEventManager();
-         $this->listenersInvoker           = new ListenersInvoker($em);
-         $this->hasCache                   = $em->getConfiguration()->isSecondLevelCacheEnabled();
-         $this->identifierFlattener        = new IdentifierFlattener($this, $em->getMetadataFactory());
-         $this->hydrationCompleteHandler   = new HydrationCompleteHandler($this->listenersInvoker, $em);
-         $this->reflectionPropertiesGetter = new ReflectionPropertiesGetter(new RuntimeReflectionService());
-     }
-     /**
-      * Commits the UnitOfWork, executing all operations that have been postponed
-      * up to this point. The state of all managed entities will be synchronized with
-      * the database.
-      *
-      * The operations are executed in the following order:
-      *
-      * 1) All entity insertions
-      * 2) All entity updates
-      * 3) All collection deletions
-      * 4) All collection updates
-      * 5) All entity deletions
-      *
-      * @param object|mixed[]|null $entity
-      *
-      * @return void
-      *
-      * @throws Exception
-      */
-     public function commit($entity = null)
-     {
-         if ($entity !== null) {
-             Deprecation::triggerIfCalledFromOutside(
-                 'doctrine/orm',
-                 'https://github.com/doctrine/orm/issues/8459',
-                 'Calling %s() with any arguments to commit specific entities is deprecated and will not be supported in Doctrine ORM 3.0.',
-                 __METHOD__
-             );
-         }
-         $connection = $this->em->getConnection();
-         if ($connection instanceof PrimaryReadReplicaConnection) {
-             $connection->ensureConnectedToPrimary();
-         }
-         // Raise preFlush
-         if ($this->evm->hasListeners(Events::preFlush)) {
-             $this->evm->dispatchEvent(Events::preFlush, new PreFlushEventArgs($this->em));
-         }
-         // Compute changes done since last commit.
-         if ($entity === null) {
-             $this->computeChangeSets();
-         } elseif (is_object($entity)) {
-             $this->computeSingleEntityChangeSet($entity);
-         } elseif (is_array($entity)) {
-             foreach ($entity as $object) {
-                 $this->computeSingleEntityChangeSet($object);
-             }
-         }
-         if (
-             ! ($this->entityInsertions ||
-                 $this->entityDeletions ||
-                 $this->entityUpdates ||
-                 $this->collectionUpdates ||
-                 $this->collectionDeletions ||
-                 $this->orphanRemovals)
-         ) {
-             $this->dispatchOnFlushEvent();
-             $this->dispatchPostFlushEvent();
-             $this->postCommitCleanup($entity);
-             return; // Nothing to do.
-         }
-         $this->assertThatThereAreNoUnintentionallyNonPersistedAssociations();
-         if ($this->orphanRemovals) {
-             foreach ($this->orphanRemovals as $orphan) {
-                 $this->remove($orphan);
-             }
-         }
-         $this->dispatchOnFlushEvent();
-         // Now we need a commit order to maintain referential integrity
-         $commitOrder = $this->getCommitOrder();
-         $conn = $this->em->getConnection();
-         $conn->beginTransaction();
-         try {
-             // Collection deletions (deletions of complete collections)
-             foreach ($this->collectionDeletions as $collectionToDelete) {
-                 // Deferred explicit tracked collections can be removed only when owning relation was persisted
-                 $owner = $collectionToDelete->getOwner();
-                 if ($this->em->getClassMetadata(get_class($owner))->isChangeTrackingDeferredImplicit() || $this->isScheduledForDirtyCheck($owner)) {
-                     $this->getCollectionPersister($collectionToDelete->getMapping())->delete($collectionToDelete);
-                 }
-             }
-             if ($this->entityInsertions) {
-                 foreach ($commitOrder as $class) {
-                     $this->executeInserts($class);
-                 }
-             }
-             if ($this->entityUpdates) {
-                 foreach ($commitOrder as $class) {
-                     $this->executeUpdates($class);
-                 }
-             }
-             // Extra updates that were requested by persisters.
-             if ($this->extraUpdates) {
-                 $this->executeExtraUpdates();
-             }
-             // Collection updates (deleteRows, updateRows, insertRows)
-             foreach ($this->collectionUpdates as $collectionToUpdate) {
-                 $this->getCollectionPersister($collectionToUpdate->getMapping())->update($collectionToUpdate);
-             }
-             // Entity deletions come last and need to be in reverse commit order
-             if ($this->entityDeletions) {
-                 for ($count = count($commitOrder), $i = $count - 1; $i >= 0 && $this->entityDeletions; --$i) {
-                     $this->executeDeletions($commitOrder[$i]);
-                 }
-             }
-             // Commit failed silently
-             if ($conn->commit() === false) {
-                 $object = is_object($entity) ? $entity : null;
-                 throw new OptimisticLockException('Commit failed', $object);
-             }
-         } catch (Throwable $e) {
-             $this->em->close();
-             if ($conn->isTransactionActive()) {
-                 $conn->rollBack();
-             }
-             $this->afterTransactionRolledBack();
-             throw $e;
-         }
-         $this->afterTransactionComplete();
-         // Take new snapshots from visited collections
-         foreach ($this->visitedCollections as $coll) {
-             $coll->takeSnapshot();
-         }
-         $this->dispatchPostFlushEvent();
-         $this->postCommitCleanup($entity);
-     }
-     /** @param object|object[]|null $entity */
-     private function postCommitCleanup($entity): void
-     {
-         $this->entityInsertions               =
-         $this->entityUpdates                  =
-         $this->entityDeletions                =
-         $this->extraUpdates                   =
-         $this->collectionUpdates              =
-         $this->nonCascadedNewDetectedEntities =
-         $this->collectionDeletions            =
-         $this->visitedCollections             =
-         $this->orphanRemovals                 = [];
-         if ($entity === null) {
-             $this->entityChangeSets = $this->scheduledForSynchronization = [];
-             return;
-         }
-         $entities = is_object($entity)
-             ? [$entity]
-             : $entity;
-         foreach ($entities as $object) {
-             $oid = spl_object_id($object);
-             $this->clearEntityChangeSet($oid);
-             unset($this->scheduledForSynchronization[$this->em->getClassMetadata(get_class($object))->rootEntityName][$oid]);
-         }
-     }
-     /**
-      * Computes the changesets of all entities scheduled for insertion.
-      */
-     private function computeScheduleInsertsChangeSets(): void
-     {
-         foreach ($this->entityInsertions as $entity) {
-             $class = $this->em->getClassMetadata(get_class($entity));
-             $this->computeChangeSet($class, $entity);
-         }
-     }
-     /**
-      * Only flushes the given entity according to a ruleset that keeps the UoW consistent.
-      *
-      * 1. All entities scheduled for insertion, (orphan) removals and changes in collections are processed as well!
-      * 2. Read Only entities are skipped.
-      * 3. Proxies are skipped.
-      * 4. Only if entity is properly managed.
-      *
-      * @param object $entity
-      *
-      * @throws InvalidArgumentException
-      */
-     private function computeSingleEntityChangeSet($entity): void
-     {
-         $state = $this->getEntityState($entity);
-         if ($state !== self::STATE_MANAGED && $state !== self::STATE_REMOVED) {
-             throw new InvalidArgumentException('Entity has to be managed or scheduled for removal for single computation ' . self::objToStr($entity));
-         }
-         $class = $this->em->getClassMetadata(get_class($entity));
-         if ($state === self::STATE_MANAGED && $class->isChangeTrackingDeferredImplicit()) {
-             $this->persist($entity);
-         }
-         // Compute changes for INSERTed entities first. This must always happen even in this case.
-         $this->computeScheduleInsertsChangeSets();
-         if ($class->isReadOnly) {
-             return;
-         }
-         // Ignore uninitialized proxy objects
-         if ($entity instanceof Proxy && ! $entity->__isInitialized()) {
-             return;
-         }
-         // Only MANAGED entities that are NOT SCHEDULED FOR INSERTION OR DELETION are processed here.
-         $oid = spl_object_id($entity);
-         if (! isset($this->entityInsertions[$oid]) && ! isset($this->entityDeletions[$oid]) && isset($this->entityStates[$oid])) {
-             $this->computeChangeSet($class, $entity);
-         }
-     }
-     /**
-      * Executes any extra updates that have been scheduled.
-      */
-     private function executeExtraUpdates(): void
-     {
-         foreach ($this->extraUpdates as $oid => $update) {
-             [$entity, $changeset] = $update;
-             $this->entityChangeSets[$oid] = $changeset;
-             $this->getEntityPersister(get_class($entity))->update($entity);
-         }
-         $this->extraUpdates = [];
-     }
-     /**
-      * Gets the changeset for an entity.
-      *
-      * @param object $entity
-      *
-      * @return mixed[][]
-      * @psalm-return array<string, array{mixed, mixed}|PersistentCollection>
-      */
-     public function & getEntityChangeSet($entity)
-     {
-         $oid  = spl_object_id($entity);
-         $data = [];
-         if (! isset($this->entityChangeSets[$oid])) {
-             return $data;
-         }
-         return $this->entityChangeSets[$oid];
-     }
-     /**
-      * Computes the changes that happened to a single entity.
-      *
-      * Modifies/populates the following properties:
-      *
-      * {@link _originalEntityData}
-      * If the entity is NEW or MANAGED but not yet fully persisted (only has an id)
-      * then it was not fetched from the database and therefore we have no original
-      * entity data yet. All of the current entity data is stored as the original entity data.
-      *
-      * {@link _entityChangeSets}
-      * The changes detected on all properties of the entity are stored there.
-      * A change is a tuple array where the first entry is the old value and the second
-      * entry is the new value of the property. Changesets are used by persisters
-      * to INSERT/UPDATE the persistent entity state.
-      *
-      * {@link _entityUpdates}
-      * If the entity is already fully MANAGED (has been fetched from the database before)
-      * and any changes to its properties are detected, then a reference to the entity is stored
-      * there to mark it for an update.
-      *
-      * {@link _collectionDeletions}
-      * If a PersistentCollection has been de-referenced in a fully MANAGED entity,
-      * then this collection is marked for deletion.
-      *
-      * @param ClassMetadata $class  The class descriptor of the entity.
-      * @param object        $entity The entity for which to compute the changes.
-      * @psalm-param ClassMetadata<T> $class
-      * @psalm-param T $entity
-      *
-      * @return void
-      *
-      * @template T of object
-      *
-      * @ignore
-      */
-     public function computeChangeSet(ClassMetadata $class, $entity)
-     {
-         $oid = spl_object_id($entity);
-         if (isset($this->readOnlyObjects[$oid])) {
-             return;
-         }
-         if (! $class->isInheritanceTypeNone()) {
-             $class = $this->em->getClassMetadata(get_class($entity));
-         }
-         $invoke = $this->listenersInvoker->getSubscribedSystems($class, Events::preFlush) & ~ListenersInvoker::INVOKE_MANAGER;
-         if ($invoke !== ListenersInvoker::INVOKE_NONE) {
-             $this->listenersInvoker->invoke($class, Events::preFlush, $entity, new PreFlushEventArgs($this->em), $invoke);
-         }
-         $actualData = [];
-         foreach ($class->reflFields as $name => $refProp) {
-             $value = $refProp->getValue($entity);
-             if ($class->isCollectionValuedAssociation($name) && $value !== null) {
-                 if ($value instanceof PersistentCollection) {
-                     if ($value->getOwner() === $entity) {
-                         continue;
-                     }
-                     $value = new ArrayCollection($value->getValues());
-                 }
-                 // If $value is not a Collection then use an ArrayCollection.
-                 if (! $value instanceof Collection) {
-                     $value = new ArrayCollection($value);
-                 }
-                 $assoc = $class->associationMappings[$name];
-                 // Inject PersistentCollection
-                 $value = new PersistentCollection(
-                     $this->em,
-                     $this->em->getClassMetadata($assoc['targetEntity']),
-                     $value
-                 );
-                 $value->setOwner($entity, $assoc);
-                 $value->setDirty(! $value->isEmpty());
-                 $refProp->setValue($entity, $value);
-                 $actualData[$name] = $value;
-                 continue;
-             }
-             if (( ! $class->isIdentifier($name) || ! $class->isIdGeneratorIdentity()) && ($name !== $class->versionField)) {
-                 $actualData[$name] = $value;
-             }
-         }
-         if (! isset($this->originalEntityData[$oid])) {
-             // Entity is either NEW or MANAGED but not yet fully persisted (only has an id).
-             // These result in an INSERT.
-             $this->originalEntityData[$oid] = $actualData;
-             $changeSet                      = [];
-             foreach ($actualData as $propName => $actualValue) {
-                 if (! isset($class->associationMappings[$propName])) {
-                     $changeSet[$propName] = [null, $actualValue];
-                     continue;
-                 }
-                 $assoc = $class->associationMappings[$propName];
-                 if ($assoc['isOwningSide'] && $assoc['type'] & ClassMetadata::TO_ONE) {
-                     $changeSet[$propName] = [null, $actualValue];
-                 }
-             }
-             $this->entityChangeSets[$oid] = $changeSet;
-         } else {
-             // Entity is "fully" MANAGED: it was already fully persisted before
-             // and we have a copy of the original data
-             $originalData           = $this->originalEntityData[$oid];
-             $isChangeTrackingNotify = $class->isChangeTrackingNotify();
-             $changeSet              = $isChangeTrackingNotify && isset($this->entityChangeSets[$oid])
-                 ? $this->entityChangeSets[$oid]
-                 : [];
-             foreach ($actualData as $propName => $actualValue) {
-                 // skip field, its a partially omitted one!
-                 if (! (isset($originalData[$propName]) || array_key_exists($propName, $originalData))) {
-                     continue;
-                 }
-                 $orgValue = $originalData[$propName];
-                 if (! empty($class->fieldMappings[$propName]['enumType'])) {
-                     if (is_array($orgValue)) {
-                         foreach ($orgValue as $id => $val) {
-                             if ($val instanceof BackedEnum) {
-                                 $orgValue[$id] = $val->value;
-                             }
-                         }
-                     } else {
-                         if ($orgValue instanceof BackedEnum) {
-                             $orgValue = $orgValue->value;
-                         }
-                     }
-                 }
-                 // skip if value haven't changed
-                 if ($orgValue === $actualValue) {
-                     continue;
-                 }
-                 // if regular field
-                 if (! isset($class->associationMappings[$propName])) {
-                     if ($isChangeTrackingNotify) {
-                         continue;
-                     }
-                     $changeSet[$propName] = [$orgValue, $actualValue];
-                     continue;
-                 }
-                 $assoc = $class->associationMappings[$propName];
-                 // Persistent collection was exchanged with the "originally"
-                 // created one. This can only mean it was cloned and replaced
-                 // on another entity.
-                 if ($actualValue instanceof PersistentCollection) {
-                     $owner = $actualValue->getOwner();
-                     if ($owner === null) { // cloned
-                         $actualValue->setOwner($entity, $assoc);
-                     } elseif ($owner !== $entity) { // no clone, we have to fix
-                         if (! $actualValue->isInitialized()) {
-                             $actualValue->initialize(); // we have to do this otherwise the cols share state
-                         }
-                         $newValue = clone $actualValue;
-                         $newValue->setOwner($entity, $assoc);
-                         $class->reflFields[$propName]->setValue($entity, $newValue);
-                     }
-                 }
-                 if ($orgValue instanceof PersistentCollection) {
-                     // A PersistentCollection was de-referenced, so delete it.
-                     $coid = spl_object_id($orgValue);
-                     if (isset($this->collectionDeletions[$coid])) {
-                         continue;
-                     }
-                     $this->collectionDeletions[$coid] = $orgValue;
-                     $changeSet[$propName]             = $orgValue; // Signal changeset, to-many assocs will be ignored.
-                     continue;
-                 }
-                 if ($assoc['type'] & ClassMetadata::TO_ONE) {
-                     if ($assoc['isOwningSide']) {
-                         $changeSet[$propName] = [$orgValue, $actualValue];
-                     }
-                     if ($orgValue !== null && $assoc['orphanRemoval']) {
-                         assert(is_object($orgValue));
-                         $this->scheduleOrphanRemoval($orgValue);
-                     }
-                 }
-             }
-             if ($changeSet) {
-                 $this->entityChangeSets[$oid]   = $changeSet;
-                 $this->originalEntityData[$oid] = $actualData;
-                 $this->entityUpdates[$oid]      = $entity;
-             }
-         }
-         // Look for changes in associations of the entity
-         foreach ($class->associationMappings as $field => $assoc) {
-             $val = $class->reflFields[$field]->getValue($entity);
-             if ($val === null) {
-                 continue;
-             }
-             $this->computeAssociationChanges($assoc, $val);
-             if (
-                 ! isset($this->entityChangeSets[$oid]) &&
-                 $assoc['isOwningSide'] &&
-                 $assoc['type'] === ClassMetadata::MANY_TO_MANY &&
-                 $val instanceof PersistentCollection &&
-                 $val->isDirty()
-             ) {
-                 $this->entityChangeSets[$oid]   = [];
-                 $this->originalEntityData[$oid] = $actualData;
-                 $this->entityUpdates[$oid]      = $entity;
-             }
-         }
-     }
-     /**
-      * Computes all the changes that have been done to entities and collections
-      * since the last commit and stores these changes in the _entityChangeSet map
-      * temporarily for access by the persisters, until the UoW commit is finished.
-      *
-      * @return void
-      */
-     public function computeChangeSets()
-     {
-         // Compute changes for INSERTed entities first. This must always happen.
-         $this->computeScheduleInsertsChangeSets();
-         // Compute changes for other MANAGED entities. Change tracking policies take effect here.
-         foreach ($this->identityMap as $className => $entities) {
-             $class = $this->em->getClassMetadata($className);
-             // Skip class if instances are read-only
-             if ($class->isReadOnly) {
-                 continue;
-             }
-             // If change tracking is explicit or happens through notification, then only compute
-             // changes on entities of that type that are explicitly marked for synchronization.
-             switch (true) {
-                 case $class->isChangeTrackingDeferredImplicit():
-                     $entitiesToProcess = $entities;
-                     break;
-                 case isset($this->scheduledForSynchronization[$className]):
-                     $entitiesToProcess = $this->scheduledForSynchronization[$className];
-                     break;
-                 default:
-                     $entitiesToProcess = [];
-             }
-             foreach ($entitiesToProcess as $entity) {
-                 // Ignore uninitialized proxy objects
-                 if ($entity instanceof Proxy && ! $entity->__isInitialized()) {
-                     continue;
-                 }
-                 // Only MANAGED entities that are NOT SCHEDULED FOR INSERTION OR DELETION are processed here.
-                 $oid = spl_object_id($entity);
-                 if (! isset($this->entityInsertions[$oid]) && ! isset($this->entityDeletions[$oid]) && isset($this->entityStates[$oid])) {
-                     $this->computeChangeSet($class, $entity);
-                 }
-             }
-         }
-     }
-     /**
-      * Computes the changes of an association.
-      *
-      * @param mixed $value The value of the association.
-      * @psalm-param array<string, mixed> $assoc The association mapping.
-      *
-      * @throws ORMInvalidArgumentException
-      * @throws ORMException
-      */
-     private function computeAssociationChanges(array $assoc, $value): void
-     {
-         if ($value instanceof Proxy && ! $value->__isInitialized()) {
-             return;
-         }
-         if ($value instanceof PersistentCollection && $value->isDirty()) {
-             $coid = spl_object_id($value);
-             $this->collectionUpdates[$coid]  = $value;
-             $this->visitedCollections[$coid] = $value;
-         }
-         // Look through the entities, and in any of their associations,
-         // for transient (new) entities, recursively. ("Persistence by reachability")
-         // Unwrap. Uninitialized collections will simply be empty.
-         $unwrappedValue = $assoc['type'] & ClassMetadata::TO_ONE ? [$value] : $value->unwrap();
-         $targetClass    = $this->em->getClassMetadata($assoc['targetEntity']);
-         foreach ($unwrappedValue as $key => $entry) {
-             if (! ($entry instanceof $targetClass->name)) {
-                 throw ORMInvalidArgumentException::invalidAssociation($targetClass, $assoc, $entry);
-             }
-             $state = $this->getEntityState($entry, self::STATE_NEW);
-             if (! ($entry instanceof $assoc['targetEntity'])) {
-                 throw UnexpectedAssociationValue::create(
-                     $assoc['sourceEntity'],
-                     $assoc['fieldName'],
-                     get_debug_type($entry),
-                     $assoc['targetEntity']
-                 );
-             }
-             switch ($state) {
-                 case self::STATE_NEW:
-                     if (! $assoc['isCascadePersist']) {
-                         /*
-                          * For now just record the details, because this may
-                          * not be an issue if we later discover another pathway
-                          * through the object-graph where cascade-persistence
-                          * is enabled for this object.
-                          */
-                         $this->nonCascadedNewDetectedEntities[spl_object_id($entry)] = [$assoc, $entry];
-                         break;
-                     }
-                     $this->persistNew($targetClass, $entry);
-                     $this->computeChangeSet($targetClass, $entry);
-                     break;
-                 case self::STATE_REMOVED:
-                     // Consume the $value as array (it's either an array or an ArrayAccess)
-                     // and remove the element from Collection.
-                     if ($assoc['type'] & ClassMetadata::TO_MANY) {
-                         unset($value[$key]);
-                     }
-                     break;
-                 case self::STATE_DETACHED:
-                     // Can actually not happen right now as we assume STATE_NEW,
-                     // so the exception will be raised from the DBAL layer (constraint violation).
-                     throw ORMInvalidArgumentException::detachedEntityFoundThroughRelationship($assoc, $entry);
-                 default:
-                     // MANAGED associated entities are already taken into account
-                     // during changeset calculation anyway, since they are in the identity map.
-             }
-         }
-     }
-     /**
-      * @param object $entity
-      * @psalm-param ClassMetadata<T> $class
-      * @psalm-param T $entity
-      *
-      * @template T of object
-      */
-     private function persistNew(ClassMetadata $class, $entity): void
-     {
-         $oid    = spl_object_id($entity);
-         $invoke = $this->listenersInvoker->getSubscribedSystems($class, Events::prePersist);
-         if ($invoke !== ListenersInvoker::INVOKE_NONE) {
-             $this->listenersInvoker->invoke($class, Events::prePersist, $entity, new PrePersistEventArgs($entity, $this->em), $invoke);
-         }
-         $idGen = $class->idGenerator;
-         if (! $idGen->isPostInsertGenerator()) {
-             $idValue = $idGen->generateId($this->em, $entity);
-             if (! $idGen instanceof AssignedGenerator) {
-                 $idValue = [$class->getSingleIdentifierFieldName() => $this->convertSingleFieldIdentifierToPHPValue($class, $idValue)];
-                 $class->setIdentifierValues($entity, $idValue);
-             }
-             // Some identifiers may be foreign keys to new entities.
-             // In this case, we don't have the value yet and should treat it as if we have a post-insert generator
-             if (! $this->hasMissingIdsWhichAreForeignKeys($class, $idValue)) {
-                 $this->entityIdentifiers[$oid] = $idValue;
-             }
-         }
-         $this->entityStates[$oid] = self::STATE_MANAGED;
-         $this->scheduleForInsert($entity);
-     }
-     /** @param mixed[] $idValue */
-     private function hasMissingIdsWhichAreForeignKeys(ClassMetadata $class, array $idValue): bool
-     {
-         foreach ($idValue as $idField => $idFieldValue) {
-             if ($idFieldValue === null && isset($class->associationMappings[$idField])) {
-                 return true;
-             }
-         }
-         return false;
-     }
-     /**
-      * INTERNAL:
-      * Computes the changeset of an individual entity, independently of the
-      * computeChangeSets() routine that is used at the beginning of a UnitOfWork#commit().
-      *
-      * The passed entity must be a managed entity. If the entity already has a change set
-      * because this method is invoked during a commit cycle then the change sets are added.
-      * whereby changes detected in this method prevail.
-      *
-      * @param ClassMetadata $class  The class descriptor of the entity.
-      * @param object        $entity The entity for which to (re)calculate the change set.
-      * @psalm-param ClassMetadata<T> $class
-      * @psalm-param T $entity
-      *
-      * @return void
-      *
-      * @throws ORMInvalidArgumentException If the passed entity is not MANAGED.
-      *
-      * @template T of object
-      * @ignore
-      */
-     public function recomputeSingleEntityChangeSet(ClassMetadata $class, $entity)
-     {
-         $oid = spl_object_id($entity);
-         if (! isset($this->entityStates[$oid]) || $this->entityStates[$oid] !== self::STATE_MANAGED) {
-             throw ORMInvalidArgumentException::entityNotManaged($entity);
-         }
-         // skip if change tracking is "NOTIFY"
-         if ($class->isChangeTrackingNotify()) {
-             return;
-         }
-         if (! $class->isInheritanceTypeNone()) {
-             $class = $this->em->getClassMetadata(get_class($entity));
-         }
-         $actualData = [];
-         foreach ($class->reflFields as $name => $refProp) {
-             if (
-                 ( ! $class->isIdentifier($name) || ! $class->isIdGeneratorIdentity())
-                 && ($name !== $class->versionField)
-                 && ! $class->isCollectionValuedAssociation($name)
-             ) {
-                 $actualData[$name] = $refProp->getValue($entity);
-             }
-         }
-         if (! isset($this->originalEntityData[$oid])) {
-             throw new RuntimeException('Cannot call recomputeSingleEntityChangeSet before computeChangeSet on an entity.');
-         }
-         $originalData = $this->originalEntityData[$oid];
-         $changeSet    = [];
-         foreach ($actualData as $propName => $actualValue) {
-             $orgValue = $originalData[$propName] ?? null;
-             if ($orgValue !== $actualValue) {
-                 $changeSet[$propName] = [$orgValue, $actualValue];
-             }
-         }
-         if ($changeSet) {
-             if (isset($this->entityChangeSets[$oid])) {
-                 $this->entityChangeSets[$oid] = array_merge($this->entityChangeSets[$oid], $changeSet);
-             } elseif (! isset($this->entityInsertions[$oid])) {
-                 $this->entityChangeSets[$oid] = $changeSet;
-                 $this->entityUpdates[$oid]    = $entity;
-             }
-             $this->originalEntityData[$oid] = $actualData;
-         }
-     }
-     /**
-      * Executes all entity insertions for entities of the specified type.
-      */
-     private function executeInserts(ClassMetadata $class): void
-     {
-         $entities  = [];
-         $className = $class->name;
-         $persister = $this->getEntityPersister($className);
-         $invoke    = $this->listenersInvoker->getSubscribedSystems($class, Events::postPersist);
-         $insertionsForClass = [];
-         foreach ($this->entityInsertions as $oid => $entity) {
-             if ($this->em->getClassMetadata(get_class($entity))->name !== $className) {
-                 continue;
-             }
-             $insertionsForClass[$oid] = $entity;
-             $persister->addInsert($entity);
-             unset($this->entityInsertions[$oid]);
-             if ($invoke !== ListenersInvoker::INVOKE_NONE) {
-                 $entities[] = $entity;
-             }
-         }
-         $postInsertIds = $persister->executeInserts();
-         if ($postInsertIds) {
-             // Persister returned post-insert IDs
-             foreach ($postInsertIds as $postInsertId) {
-                 $idField = $class->getSingleIdentifierFieldName();
-                 $idValue = $this->convertSingleFieldIdentifierToPHPValue($class, $postInsertId['generatedId']);
-                 $entity = $postInsertId['entity'];
-                 $oid    = spl_object_id($entity);
-                 $class->reflFields[$idField]->setValue($entity, $idValue);
-                 $this->entityIdentifiers[$oid]            = [$idField => $idValue];
-                 $this->entityStates[$oid]                 = self::STATE_MANAGED;
-                 $this->originalEntityData[$oid][$idField] = $idValue;
-                 $this->addToIdentityMap($entity);
-             }
-         } else {
-             foreach ($insertionsForClass as $oid => $entity) {
-                 if (! isset($this->entityIdentifiers[$oid])) {
-                     //entity was not added to identity map because some identifiers are foreign keys to new entities.
-                     //add it now
-                     $this->addToEntityIdentifiersAndEntityMap($class, $oid, $entity);
-                 }
-             }
-         }
-         foreach ($entities as $entity) {
-             $this->listenersInvoker->invoke($class, Events::postPersist, $entity, new PostPersistEventArgs($entity, $this->em), $invoke);
-         }
-     }
-     /**
-      * @param object $entity
-      * @psalm-param ClassMetadata<T> $class
-      * @psalm-param T $entity
-      *
-      * @template T of object
-      */
-     private function addToEntityIdentifiersAndEntityMap(
-         ClassMetadata $class,
-         int $oid,
-         $entity
-     ): void {
-         $identifier = [];
-         foreach ($class->getIdentifierFieldNames() as $idField) {
-             $origValue = $class->getFieldValue($entity, $idField);
-             $value = null;
-             if (isset($class->associationMappings[$idField])) {
-                 // NOTE: Single Columns as associated identifiers only allowed - this constraint it is enforced.
-                 $value = $this->getSingleIdentifierValue($origValue);
-             }
-             $identifier[$idField]                     = $value ?? $origValue;
-             $this->originalEntityData[$oid][$idField] = $origValue;
-         }
-         $this->entityStates[$oid]      = self::STATE_MANAGED;
-         $this->entityIdentifiers[$oid] = $identifier;
-         $this->addToIdentityMap($entity);
-     }
-     /**
-      * Executes all entity updates for entities of the specified type.
-      */
-     private function executeUpdates(ClassMetadata $class): void
-     {
-         $className        = $class->name;
-         $persister        = $this->getEntityPersister($className);
-         $preUpdateInvoke  = $this->listenersInvoker->getSubscribedSystems($class, Events::preUpdate);
-         $postUpdateInvoke = $this->listenersInvoker->getSubscribedSystems($class, Events::postUpdate);
-         foreach ($this->entityUpdates as $oid => $entity) {
-             if ($this->em->getClassMetadata(get_class($entity))->name !== $className) {
-                 continue;
-             }
-             if ($preUpdateInvoke !== ListenersInvoker::INVOKE_NONE) {
-                 $this->listenersInvoker->invoke($class, Events::preUpdate, $entity, new PreUpdateEventArgs($entity, $this->em, $this->getEntityChangeSet($entity)), $preUpdateInvoke);
-                 $this->recomputeSingleEntityChangeSet($class, $entity);
-             }
-             if (! empty($this->entityChangeSets[$oid])) {
-                 $persister->update($entity);
-             }
-             unset($this->entityUpdates[$oid]);
-             if ($postUpdateInvoke !== ListenersInvoker::INVOKE_NONE) {
-                 $this->listenersInvoker->invoke($class, Events::postUpdate, $entity, new PostUpdateEventArgs($entity, $this->em), $postUpdateInvoke);
-             }
-         }
-     }
-     /**
-      * Executes all entity deletions for entities of the specified type.
-      */
-     private function executeDeletions(ClassMetadata $class): void
-     {
-         $className = $class->name;
-         $persister = $this->getEntityPersister($className);
-         $invoke    = $this->listenersInvoker->getSubscribedSystems($class, Events::postRemove);
-         foreach ($this->entityDeletions as $oid => $entity) {
-             if ($this->em->getClassMetadata(get_class($entity))->name !== $className) {
-                 continue;
-             }
-             $persister->delete($entity);
-             unset(
-                 $this->entityDeletions[$oid],
-                 $this->entityIdentifiers[$oid],
-                 $this->originalEntityData[$oid],
-                 $this->entityStates[$oid]
-             );
-             // Entity with this $oid after deletion treated as NEW, even if the $oid
-             // is obtained by a new entity because the old one went out of scope.
-             //$this->entityStates[$oid] = self::STATE_NEW;
-             if (! $class->isIdentifierNatural()) {
-                 $class->reflFields[$class->identifier[0]]->setValue($entity, null);
-             }
-             if ($invoke !== ListenersInvoker::INVOKE_NONE) {
-                 $this->listenersInvoker->invoke($class, Events::postRemove, $entity, new PostRemoveEventArgs($entity, $this->em), $invoke);
-             }
-         }
-     }
-     /**
-      * Gets the commit order.
-      *
-      * @return list<ClassMetadata>
-      */
-     private function getCommitOrder(): array
-     {
-         $calc = $this->getCommitOrderCalculator();
-         // See if there are any new classes in the changeset, that are not in the
-         // commit order graph yet (don't have a node).
-         // We have to inspect changeSet to be able to correctly build dependencies.
-         // It is not possible to use IdentityMap here because post inserted ids
-         // are not yet available.
-         $newNodes = [];
-         foreach (array_merge($this->entityInsertions, $this->entityUpdates, $this->entityDeletions) as $entity) {
-             $class = $this->em->getClassMetadata(get_class($entity));
-             if ($calc->hasNode($class->name)) {
-                 continue;
-             }
-             $calc->addNode($class->name, $class);
-             $newNodes[] = $class;
-         }
-         // Calculate dependencies for new nodes
-         while ($class = array_pop($newNodes)) {
-             foreach ($class->associationMappings as $assoc) {
-                 if (! ($assoc['isOwningSide'] && $assoc['type'] & ClassMetadata::TO_ONE)) {
-                     continue;
-                 }
-                 $targetClass = $this->em->getClassMetadata($assoc['targetEntity']);
-                 if (! $calc->hasNode($targetClass->name)) {
-                     $calc->addNode($targetClass->name, $targetClass);
-                     $newNodes[] = $targetClass;
-                 }
-                 $joinColumns = reset($assoc['joinColumns']);
-                 $calc->addDependency($targetClass->name, $class->name, (int) empty($joinColumns['nullable']));
-                 // If the target class has mapped subclasses, these share the same dependency.
-                 if (! $targetClass->subClasses) {
-                     continue;
-                 }
-                 foreach ($targetClass->subClasses as $subClassName) {
-                     $targetSubClass = $this->em->getClassMetadata($subClassName);
-                     if (! $calc->hasNode($subClassName)) {
-                         $calc->addNode($targetSubClass->name, $targetSubClass);
-                         $newNodes[] = $targetSubClass;
-                     }
-                     $calc->addDependency($targetSubClass->name, $class->name, 1);
-                 }
-             }
-         }
-         return $calc->sort();
-     }
-     /**
-      * Schedules an entity for insertion into the database.
-      * If the entity already has an identifier, it will be added to the identity map.
-      *
-      * @param object $entity The entity to schedule for insertion.
-      *
-      * @return void
-      *
-      * @throws ORMInvalidArgumentException
-      * @throws InvalidArgumentException
-      */
-     public function scheduleForInsert($entity)
-     {
-         $oid = spl_object_id($entity);
-         if (isset($this->entityUpdates[$oid])) {
-             throw new InvalidArgumentException('Dirty entity can not be scheduled for insertion.');
-         }
-         if (isset($this->entityDeletions[$oid])) {
-             throw ORMInvalidArgumentException::scheduleInsertForRemovedEntity($entity);
-         }
-         if (isset($this->originalEntityData[$oid]) && ! isset($this->entityInsertions[$oid])) {
-             throw ORMInvalidArgumentException::scheduleInsertForManagedEntity($entity);
-         }
-         if (isset($this->entityInsertions[$oid])) {
-             throw ORMInvalidArgumentException::scheduleInsertTwice($entity);
-         }
-         $this->entityInsertions[$oid] = $entity;
-         if (isset($this->entityIdentifiers[$oid])) {
-             $this->addToIdentityMap($entity);
-         }
-         if ($entity instanceof NotifyPropertyChanged) {
-             $entity->addPropertyChangedListener($this);
-         }
-     }
-     /**
-      * Checks whether an entity is scheduled for insertion.
-      *
-      * @param object $entity
-      *
-      * @return bool
-      */
-     public function isScheduledForInsert($entity)
-     {
-         return isset($this->entityInsertions[spl_object_id($entity)]);
-     }
-     /**
-      * Schedules an entity for being updated.
-      *
-      * @param object $entity The entity to schedule for being updated.
-      *
-      * @return void
-      *
-      * @throws ORMInvalidArgumentException
-      */
-     public function scheduleForUpdate($entity)
-     {
-         $oid = spl_object_id($entity);
-         if (! isset($this->entityIdentifiers[$oid])) {
-             throw ORMInvalidArgumentException::entityHasNoIdentity($entity, 'scheduling for update');
-         }
-         if (isset($this->entityDeletions[$oid])) {
-             throw ORMInvalidArgumentException::entityIsRemoved($entity, 'schedule for update');
-         }
-         if (! isset($this->entityUpdates[$oid]) && ! isset($this->entityInsertions[$oid])) {
-             $this->entityUpdates[$oid] = $entity;
-         }
-     }
-     /**
-      * INTERNAL:
-      * Schedules an extra update that will be executed immediately after the
-      * regular entity updates within the currently running commit cycle.
-      *
-      * Extra updates for entities are stored as (entity, changeset) tuples.
-      *
-      * @param object $entity The entity for which to schedule an extra update.
-      * @psalm-param array<string, array{mixed, mixed}>  $changeset The changeset of the entity (what to update).
-      *
-      * @return void
-      *
-      * @ignore
-      */
-     public function scheduleExtraUpdate($entity, array $changeset)
-     {
-         $oid         = spl_object_id($entity);
-         $extraUpdate = [$entity, $changeset];
-         if (isset($this->extraUpdates[$oid])) {
-             [, $changeset2] = $this->extraUpdates[$oid];
-             $extraUpdate = [$entity, $changeset + $changeset2];
-         }
-         $this->extraUpdates[$oid] = $extraUpdate;
-     }
-     /**
-      * Checks whether an entity is registered as dirty in the unit of work.
-      * Note: Is not very useful currently as dirty entities are only registered
-      * at commit time.
-      *
-      * @param object $entity
-      *
-      * @return bool
-      */
-     public function isScheduledForUpdate($entity)
-     {
-         return isset($this->entityUpdates[spl_object_id($entity)]);
-     }
-     /**
-      * Checks whether an entity is registered to be checked in the unit of work.
-      *
-      * @param object $entity
-      *
-      * @return bool
-      */
-     public function isScheduledForDirtyCheck($entity)
-     {
-         $rootEntityName = $this->em->getClassMetadata(get_class($entity))->rootEntityName;
-         return isset($this->scheduledForSynchronization[$rootEntityName][spl_object_id($entity)]);
-     }
-     /**
-      * INTERNAL:
-      * Schedules an entity for deletion.
-      *
-      * @param object $entity
-      *
-      * @return void
-      */
-     public function scheduleForDelete($entity)
-     {
-         $oid = spl_object_id($entity);
-         if (isset($this->entityInsertions[$oid])) {
-             if ($this->isInIdentityMap($entity)) {
-                 $this->removeFromIdentityMap($entity);
-             }
-             unset($this->entityInsertions[$oid], $this->entityStates[$oid]);
-             return; // entity has not been persisted yet, so nothing more to do.
-         }
-         if (! $this->isInIdentityMap($entity)) {
-             return;
-         }
-         $this->removeFromIdentityMap($entity);
-         unset($this->entityUpdates[$oid]);
-         if (! isset($this->entityDeletions[$oid])) {
-             $this->entityDeletions[$oid] = $entity;
-             $this->entityStates[$oid]    = self::STATE_REMOVED;
-         }
-     }
-     /**
-      * Checks whether an entity is registered as removed/deleted with the unit
-      * of work.
-      *
-      * @param object $entity
-      *
-      * @return bool
-      */
-     public function isScheduledForDelete($entity)
-     {
-         return isset($this->entityDeletions[spl_object_id($entity)]);
-     }
-     /**
-      * Checks whether an entity is scheduled for insertion, update or deletion.
-      *
-      * @param object $entity
-      *
-      * @return bool
-      */
-     public function isEntityScheduled($entity)
-     {
-         $oid = spl_object_id($entity);
-         return isset($this->entityInsertions[$oid])
-             || isset($this->entityUpdates[$oid])
-             || isset($this->entityDeletions[$oid]);
-     }
-     /**
-      * INTERNAL:
-      * Registers an entity in the identity map.
-      * Note that entities in a hierarchy are registered with the class name of
-      * the root entity.
-      *
-      * @param object $entity The entity to register.
-      *
-      * @return bool TRUE if the registration was successful, FALSE if the identity of
-      * the entity in question is already managed.
-      *
-      * @throws ORMInvalidArgumentException
-      *
-      * @ignore
-      */
-     public function addToIdentityMap($entity)
-     {
-         $classMetadata = $this->em->getClassMetadata(get_class($entity));
-         $identifier    = $this->entityIdentifiers[spl_object_id($entity)];
-         if (empty($identifier) || in_array(null, $identifier, true)) {
-             throw ORMInvalidArgumentException::entityWithoutIdentity($classMetadata->name, $entity);
-         }
-         $idHash    = implode(' ', $identifier);
-         $className = $classMetadata->rootEntityName;
-         if (isset($this->identityMap[$className][$idHash])) {
-             return false;
-         }
-         $this->identityMap[$className][$idHash] = $entity;
-         return true;
-     }
-     /**
-      * Gets the state of an entity with regard to the current unit of work.
-      *
-      * @param object   $entity
-      * @param int|null $assume The state to assume if the state is not yet known (not MANAGED or REMOVED).
-      *                         This parameter can be set to improve performance of entity state detection
-      *                         by potentially avoiding a database lookup if the distinction between NEW and DETACHED
-      *                         is either known or does not matter for the caller of the method.
-      * @psalm-param self::STATE_*|null $assume
-      *
-      * @return int The entity state.
-      * @psalm-return self::STATE_*
-      */
-     public function getEntityState($entity, $assume = null)
-     {
-         $oid = spl_object_id($entity);
-         if (isset($this->entityStates[$oid])) {
-             return $this->entityStates[$oid];
-         }
-         if ($assume !== null) {
-             return $assume;
-         }
-         // State can only be NEW or DETACHED, because MANAGED/REMOVED states are known.
-         // Note that you can not remember the NEW or DETACHED state in _entityStates since
-         // the UoW does not hold references to such objects and the object hash can be reused.
-         // More generally because the state may "change" between NEW/DETACHED without the UoW being aware of it.
-         $class = $this->em->getClassMetadata(get_class($entity));
-         $id    = $class->getIdentifierValues($entity);
-         if (! $id) {
-             return self::STATE_NEW;
-         }
-         if ($class->containsForeignIdentifier || $class->containsEnumIdentifier) {
-             $id = $this->identifierFlattener->flattenIdentifier($class, $id);
-         }
-         switch (true) {
-             case $class->isIdentifierNatural():
-                 // Check for a version field, if available, to avoid a db lookup.
-                 if ($class->isVersioned) {
-                     assert($class->versionField !== null);
-                     return $class->getFieldValue($entity, $class->versionField)
-                         ? self::STATE_DETACHED
-                         : self::STATE_NEW;
-                 }
-                 // Last try before db lookup: check the identity map.
-                 if ($this->tryGetById($id, $class->rootEntityName)) {
-                     return self::STATE_DETACHED;
-                 }
-                 // db lookup
-                 if ($this->getEntityPersister($class->name)->exists($entity)) {
-                     return self::STATE_DETACHED;
-                 }
-                 return self::STATE_NEW;
-             case ! $class->idGenerator->isPostInsertGenerator():
-                 // if we have a pre insert generator we can't be sure that having an id
-                 // really means that the entity exists. We have to verify this through
-                 // the last resort: a db lookup
-                 // Last try before db lookup: check the identity map.
-                 if ($this->tryGetById($id, $class->rootEntityName)) {
-                     return self::STATE_DETACHED;
-                 }
-                 // db lookup
-                 if ($this->getEntityPersister($class->name)->exists($entity)) {
-                     return self::STATE_DETACHED;
-                 }
-                 return self::STATE_NEW;
-             default:
-                 return self::STATE_DETACHED;
-         }
-     }
-     /**
-      * INTERNAL:
-      * Removes an entity from the identity map. This effectively detaches the
-      * entity from the persistence management of Doctrine.
-      *
-      * @param object $entity
-      *
-      * @return bool
-      *
-      * @throws ORMInvalidArgumentException
-      *
-      * @ignore
-      */
-     public function removeFromIdentityMap($entity)
-     {
-         $oid           = spl_object_id($entity);
-         $classMetadata = $this->em->getClassMetadata(get_class($entity));
-         $idHash        = implode(' ', $this->entityIdentifiers[$oid]);
-         if ($idHash === '') {
-             throw ORMInvalidArgumentException::entityHasNoIdentity($entity, 'remove from identity map');
-         }
-         $className = $classMetadata->rootEntityName;
-         if (isset($this->identityMap[$className][$idHash])) {
-             unset($this->identityMap[$className][$idHash], $this->readOnlyObjects[$oid]);
-             //$this->entityStates[$oid] = self::STATE_DETACHED;
-             return true;
-         }
-         return false;
-     }
-     /**
-      * INTERNAL:
-      * Gets an entity in the identity map by its identifier hash.
-      *
-      * @param string $idHash
-      * @param string $rootClassName
-      *
-      * @return object
-      *
-      * @ignore
-      */
-     public function getByIdHash($idHash, $rootClassName)
-     {
-         return $this->identityMap[$rootClassName][$idHash];
-     }
-     /**
-      * INTERNAL:
-      * Tries to get an entity by its identifier hash. If no entity is found for
-      * the given hash, FALSE is returned.
-      *
-      * @param mixed  $idHash        (must be possible to cast it to string)
-      * @param string $rootClassName
-      *
-      * @return false|object The found entity or FALSE.
-      *
-      * @ignore
-      */
-     public function tryGetByIdHash($idHash, $rootClassName)
-     {
-         $stringIdHash = (string) $idHash;
-         return $this->identityMap[$rootClassName][$stringIdHash] ?? false;
-     }
-     /**
-      * Checks whether an entity is registered in the identity map of this UnitOfWork.
-      *
-      * @param object $entity
-      *
-      * @return bool
-      */
-     public function isInIdentityMap($entity)
-     {
-         $oid = spl_object_id($entity);
-         if (empty($this->entityIdentifiers[$oid])) {
-             return false;
-         }
-         $classMetadata = $this->em->getClassMetadata(get_class($entity));
-         $idHash        = implode(' ', $this->entityIdentifiers[$oid]);
-         return isset($this->identityMap[$classMetadata->rootEntityName][$idHash]);
-     }
-     /**
-      * INTERNAL:
-      * Checks whether an identifier hash exists in the identity map.
-      *
-      * @param string $idHash
-      * @param string $rootClassName
-      *
-      * @return bool
-      *
-      * @ignore
-      */
-     public function containsIdHash($idHash, $rootClassName)
-     {
-         return isset($this->identityMap[$rootClassName][$idHash]);
-     }
-     /**
-      * Persists an entity as part of the current unit of work.
-      *
-      * @param object $entity The entity to persist.
-      *
-      * @return void
-      */
-     public function persist($entity)
-     {
-         $visited = [];
-         $this->doPersist($entity, $visited);
-     }
-     /**
-      * Persists an entity as part of the current unit of work.
-      *
-      * This method is internally called during persist() cascades as it tracks
-      * the already visited entities to prevent infinite recursions.
-      *
-      * @param object $entity The entity to persist.
-      * @psalm-param array<int, object> $visited The already visited entities.
-      *
-      * @throws ORMInvalidArgumentException
-      * @throws UnexpectedValueException
-      */
-     private function doPersist($entity, array &$visited): void
-     {
-         $oid = spl_object_id($entity);
-         if (isset($visited[$oid])) {
-             return; // Prevent infinite recursion
-         }
-         $visited[$oid] = $entity; // Mark visited
-         $class = $this->em->getClassMetadata(get_class($entity));
-         // We assume NEW, so DETACHED entities result in an exception on flush (constraint violation).
-         // If we would detect DETACHED here we would throw an exception anyway with the same
-         // consequences (not recoverable/programming error), so just assuming NEW here
-         // lets us avoid some database lookups for entities with natural identifiers.
-         $entityState = $this->getEntityState($entity, self::STATE_NEW);
-         switch ($entityState) {
-             case self::STATE_MANAGED:
-                 // Nothing to do, except if policy is "deferred explicit"
-                 if ($class->isChangeTrackingDeferredExplicit()) {
-                     $this->scheduleForDirtyCheck($entity);
-                 }
-                 break;
-             case self::STATE_NEW:
-                 $this->persistNew($class, $entity);
-                 break;
-             case self::STATE_REMOVED:
-                 // Entity becomes managed again
-                 unset($this->entityDeletions[$oid]);
-                 $this->addToIdentityMap($entity);
-                 $this->entityStates[$oid] = self::STATE_MANAGED;
-                 if ($class->isChangeTrackingDeferredExplicit()) {
-                     $this->scheduleForDirtyCheck($entity);
-                 }
-                 break;
-             case self::STATE_DETACHED:
-                 // Can actually not happen right now since we assume STATE_NEW.
-                 throw ORMInvalidArgumentException::detachedEntityCannot($entity, 'persisted');
-             default:
-                 throw new UnexpectedValueException(sprintf(
-                     'Unexpected entity state: %s. %s',
-                     $entityState,
-                     self::objToStr($entity)
-                 ));
-         }
-         $this->cascadePersist($entity, $visited);
-     }
-     /**
-      * Deletes an entity as part of the current unit of work.
-      *
-      * @param object $entity The entity to remove.
-      *
-      * @return void
-      */
-     public function remove($entity)
-     {
-         $visited = [];
-         $this->doRemove($entity, $visited);
-     }
-     /**
-      * Deletes an entity as part of the current unit of work.
-      *
-      * This method is internally called during delete() cascades as it tracks
-      * the already visited entities to prevent infinite recursions.
-      *
-      * @param object $entity The entity to delete.
-      * @psalm-param array<int, object> $visited The map of the already visited entities.
-      *
-      * @throws ORMInvalidArgumentException If the instance is a detached entity.
-      * @throws UnexpectedValueException
-      */
-     private function doRemove($entity, array &$visited): void
-     {
-         $oid = spl_object_id($entity);
-         if (isset($visited[$oid])) {
-             return; // Prevent infinite recursion
-         }
-         $visited[$oid] = $entity; // mark visited
-         // Cascade first, because scheduleForDelete() removes the entity from the identity map, which
-         // can cause problems when a lazy proxy has to be initialized for the cascade operation.
-         $this->cascadeRemove($entity, $visited);
-         $class       = $this->em->getClassMetadata(get_class($entity));
-         $entityState = $this->getEntityState($entity);
-         switch ($entityState) {
-             case self::STATE_NEW:
-             case self::STATE_REMOVED:
-                 // nothing to do
-                 break;
-             case self::STATE_MANAGED:
-                 $invoke = $this->listenersInvoker->getSubscribedSystems($class, Events::preRemove);
-                 if ($invoke !== ListenersInvoker::INVOKE_NONE) {
-                     $this->listenersInvoker->invoke($class, Events::preRemove, $entity, new PreRemoveEventArgs($entity, $this->em), $invoke);
-                 }
-                 $this->scheduleForDelete($entity);
-                 break;
-             case self::STATE_DETACHED:
-                 throw ORMInvalidArgumentException::detachedEntityCannot($entity, 'removed');
-             default:
-                 throw new UnexpectedValueException(sprintf(
-                     'Unexpected entity state: %s. %s',
-                     $entityState,
-                     self::objToStr($entity)
-                 ));
-         }
-     }
-     /**
-      * Merges the state of the given detached entity into this UnitOfWork.
-      *
-      * @deprecated 2.7 This method is being removed from the ORM and won't have any replacement
-      *
-      * @param object $entity
-      *
-      * @return object The managed copy of the entity.
-      *
-      * @throws OptimisticLockException If the entity uses optimistic locking through a version
-      *         attribute and the version check against the managed copy fails.
-      */
-     public function merge($entity)
-     {
-         $visited = [];
-         return $this->doMerge($entity, $visited);
-     }
-     /**
-      * Executes a merge operation on an entity.
-      *
-      * @param object $entity
-      * @psalm-param AssociationMapping|null $assoc
-      * @psalm-param array<int, object> $visited
-      *
-      * @return object The managed copy of the entity.
-      *
-      * @throws OptimisticLockException If the entity uses optimistic locking through a version
-      *         attribute and the version check against the managed copy fails.
-      * @throws ORMInvalidArgumentException If the entity instance is NEW.
-      * @throws EntityNotFoundException if an assigned identifier is used in the entity, but none is provided.
-      */
-     private function doMerge(
-         $entity,
-         array &$visited,
-         $prevManagedCopy = null,
-         ?array $assoc = null
-     ) {
-         $oid = spl_object_id($entity);
-         if (isset($visited[$oid])) {
-             $managedCopy = $visited[$oid];
-             if ($prevManagedCopy !== null) {
-                 $this->updateAssociationWithMergedEntity($entity, $assoc, $prevManagedCopy, $managedCopy);
-             }
-             return $managedCopy;
-         }
-         $class = $this->em->getClassMetadata(get_class($entity));
-         // First we assume DETACHED, although it can still be NEW but we can avoid
-         // an extra db-roundtrip this way. If it is not MANAGED but has an identity,
-         // we need to fetch it from the db anyway in order to merge.
-         // MANAGED entities are ignored by the merge operation.
-         $managedCopy = $entity;
-         if ($this->getEntityState($entity, self::STATE_DETACHED) !== self::STATE_MANAGED) {
-             // Try to look the entity up in the identity map.
-             $id = $class->getIdentifierValues($entity);
-             // If there is no ID, it is actually NEW.
-             if (! $id) {
-                 $managedCopy = $this->newInstance($class);
-                 $this->mergeEntityStateIntoManagedCopy($entity, $managedCopy);
-                 $this->persistNew($class, $managedCopy);
-             } else {
-                 $flatId = $class->containsForeignIdentifier || $class->containsEnumIdentifier
-                     ? $this->identifierFlattener->flattenIdentifier($class, $id)
-                     : $id;
-                 $managedCopy = $this->tryGetById($flatId, $class->rootEntityName);
-                 if ($managedCopy) {
-                     // We have the entity in-memory already, just make sure its not removed.
-                     if ($this->getEntityState($managedCopy) === self::STATE_REMOVED) {
-                         throw ORMInvalidArgumentException::entityIsRemoved($managedCopy, 'merge');
-                     }
-                 } else {
-                     // We need to fetch the managed copy in order to merge.
-                     $managedCopy = $this->em->find($class->name, $flatId);
-                 }
-                 if ($managedCopy === null) {
-                     // If the identifier is ASSIGNED, it is NEW, otherwise an error
-                     // since the managed entity was not found.
-                     if (! $class->isIdentifierNatural()) {
-                         throw EntityNotFoundException::fromClassNameAndIdentifier(
-                             $class->getName(),
-                             $this->identifierFlattener->flattenIdentifier($class, $id)
-                         );
-                     }
-                     $managedCopy = $this->newInstance($class);
-                     $class->setIdentifierValues($managedCopy, $id);
-                     $this->mergeEntityStateIntoManagedCopy($entity, $managedCopy);
-                     $this->persistNew($class, $managedCopy);
-                 } else {
-                     $this->ensureVersionMatch($class, $entity, $managedCopy);
-                     $this->mergeEntityStateIntoManagedCopy($entity, $managedCopy);
-                 }
-             }
-             $visited[$oid] = $managedCopy; // mark visited
-             if ($class->isChangeTrackingDeferredExplicit()) {
-                 $this->scheduleForDirtyCheck($entity);
-             }
-         }
-         if ($prevManagedCopy !== null) {
-             $this->updateAssociationWithMergedEntity($entity, $assoc, $prevManagedCopy, $managedCopy);
-         }
-         // Mark the managed copy visited as well
-         $visited[spl_object_id($managedCopy)] = $managedCopy;
-         $this->cascadeMerge($entity, $managedCopy, $visited);
-         return $managedCopy;
-     }
-     /**
-      * @param object $entity
-      * @param object $managedCopy
-      * @psalm-param ClassMetadata<T> $class
-      * @psalm-param T $entity
-      * @psalm-param T $managedCopy
-      *
-      * @throws OptimisticLockException
-      *
-      * @template T of object
-      */
-     private function ensureVersionMatch(
-         ClassMetadata $class,
-         $entity,
-         $managedCopy
-     ): void {
-         if (! ($class->isVersioned && $this->isLoaded($managedCopy) && $this->isLoaded($entity))) {
-             return;
-         }
-         assert($class->versionField !== null);
-         $reflField          = $class->reflFields[$class->versionField];
-         $managedCopyVersion = $reflField->getValue($managedCopy);
-         $entityVersion      = $reflField->getValue($entity);
-         // Throw exception if versions don't match.
-         // phpcs:ignore SlevomatCodingStandard.Operators.DisallowEqualOperators.DisallowedEqualOperator
-         if ($managedCopyVersion == $entityVersion) {
-             return;
-         }
-         throw OptimisticLockException::lockFailedVersionMismatch($entity, $entityVersion, $managedCopyVersion);
-     }
-     /**
-      * Tests if an entity is loaded - must either be a loaded proxy or not a proxy
-      *
-      * @param object $entity
-      */
-     private function isLoaded($entity): bool
-     {
-         return ! ($entity instanceof Proxy) || $entity->__isInitialized();
-     }
-     /**
-      * Sets/adds associated managed copies into the previous entity's association field
-      *
-      * @param object $entity
-      * @psalm-param AssociationMapping $association
-      */
-     private function updateAssociationWithMergedEntity(
-         $entity,
-         array $association,
-         $previousManagedCopy,
-         $managedCopy
-     ): void {
-         $assocField = $association['fieldName'];
-         $prevClass  = $this->em->getClassMetadata(get_class($previousManagedCopy));
-         if ($association['type'] & ClassMetadata::TO_ONE) {
-             $prevClass->reflFields[$assocField]->setValue($previousManagedCopy, $managedCopy);
-             return;
-         }
-         $value   = $prevClass->reflFields[$assocField]->getValue($previousManagedCopy);
-         $value[] = $managedCopy;
-         if ($association['type'] === ClassMetadata::ONE_TO_MANY) {
-             $class = $this->em->getClassMetadata(get_class($entity));
-             $class->reflFields[$association['mappedBy']]->setValue($managedCopy, $previousManagedCopy);
-         }
-     }
-     /**
-      * Detaches an entity from the persistence management. It's persistence will
-      * no longer be managed by Doctrine.
-      *
-      * @param object $entity The entity to detach.
-      *
-      * @return void
-      */
-     public function detach($entity)
-     {
-         $visited = [];
-         $this->doDetach($entity, $visited);
-     }
-     /**
-      * Executes a detach operation on the given entity.
-      *
-      * @param object  $entity
-      * @param mixed[] $visited
-      * @param bool    $noCascade if true, don't cascade detach operation.
-      */
-     private function doDetach(
-         $entity,
-         array &$visited,
-         bool $noCascade = false
-     ): void {
-         $oid = spl_object_id($entity);
-         if (isset($visited[$oid])) {
-             return; // Prevent infinite recursion
-         }
-         $visited[$oid] = $entity; // mark visited
-         switch ($this->getEntityState($entity, self::STATE_DETACHED)) {
-             case self::STATE_MANAGED:
-                 if ($this->isInIdentityMap($entity)) {
-                     $this->removeFromIdentityMap($entity);
-                 }
-                 unset(
-                     $this->entityInsertions[$oid],
-                     $this->entityUpdates[$oid],
-                     $this->entityDeletions[$oid],
-                     $this->entityIdentifiers[$oid],
-                     $this->entityStates[$oid],
-                     $this->originalEntityData[$oid]
-                 );
-                 break;
-             case self::STATE_NEW:
-             case self::STATE_DETACHED:
-                 return;
-         }
-         if (! $noCascade) {
-             $this->cascadeDetach($entity, $visited);
-         }
-     }
-     /**
-      * Refreshes the state of the given entity from the database, overwriting
-      * any local, unpersisted changes.
-      *
-      * @param object $entity The entity to refresh
-      *
-      * @return void
-      *
-      * @throws InvalidArgumentException If the entity is not MANAGED.
-      * @throws TransactionRequiredException
-      */
-     public function refresh($entity)
-     {
-         $visited = [];
-         $lockMode = null;
-         if (func_num_args() > 1) {
-             $lockMode = func_get_arg(1);
-         }
-         $this->doRefresh($entity, $visited, $lockMode);
-     }
-     /**
-      * Executes a refresh operation on an entity.
-      *
-      * @param object $entity The entity to refresh.
-      * @psalm-param array<int, object>  $visited The already visited entities during cascades.
-      * @psalm-param LockMode::*|null $lockMode
-      *
-      * @throws ORMInvalidArgumentException If the entity is not MANAGED.
-      * @throws TransactionRequiredException
-      */
-     private function doRefresh($entity, array &$visited, ?int $lockMode = null): void
-     {
-         switch (true) {
-             case $lockMode === LockMode::PESSIMISTIC_READ:
-             case $lockMode === LockMode::PESSIMISTIC_WRITE:
-                 if (! $this->em->getConnection()->isTransactionActive()) {
-                     throw TransactionRequiredException::transactionRequired();
-                 }
-         }
-         $oid = spl_object_id($entity);
-         if (isset($visited[$oid])) {
-             return; // Prevent infinite recursion
-         }
-         $visited[$oid] = $entity; // mark visited
-         $class = $this->em->getClassMetadata(get_class($entity));
-         if ($this->getEntityState($entity) !== self::STATE_MANAGED) {
-             throw ORMInvalidArgumentException::entityNotManaged($entity);
-         }
-         $this->getEntityPersister($class->name)->refresh(
-             array_combine($class->getIdentifierFieldNames(), $this->entityIdentifiers[$oid]),
-             $entity,
-             $lockMode
-         );
-         $this->cascadeRefresh($entity, $visited, $lockMode);
-     }
-     /**
-      * Cascades a refresh operation to associated entities.
-      *
-      * @param object $entity
-      * @psalm-param array<int, object> $visited
-      * @psalm-param LockMode::*|null $lockMode
-      */
-     private function cascadeRefresh($entity, array &$visited, ?int $lockMode = null): void
-     {
-         $class = $this->em->getClassMetadata(get_class($entity));
-         $associationMappings = array_filter(
-             $class->associationMappings,
-             static function ($assoc) {
-                 return $assoc['isCascadeRefresh'];
-             }
-         );
-         foreach ($associationMappings as $assoc) {
-             $relatedEntities = $class->reflFields[$assoc['fieldName']]->getValue($entity);
-             switch (true) {
-                 case $relatedEntities instanceof PersistentCollection:
-                     // Unwrap so that foreach() does not initialize
-                     $relatedEntities = $relatedEntities->unwrap();
-                     // break; is commented intentionally!
-                 case $relatedEntities instanceof Collection:
-                 case is_array($relatedEntities):
-                     foreach ($relatedEntities as $relatedEntity) {
-                         $this->doRefresh($relatedEntity, $visited, $lockMode);
-                     }
-                     break;
-                 case $relatedEntities !== null:
-                     $this->doRefresh($relatedEntities, $visited, $lockMode);
-                     break;
-                 default:
-                     // Do nothing
-             }
-         }
-     }
-     /**
-      * Cascades a detach operation to associated entities.
-      *
-      * @param object             $entity
-      * @param array<int, object> $visited
-      */
-     private function cascadeDetach($entity, array &$visited): void
-     {
-         $class = $this->em->getClassMetadata(get_class($entity));
-         $associationMappings = array_filter(
-             $class->associationMappings,
-             static function ($assoc) {
-                 return $assoc['isCascadeDetach'];
-             }
-         );
-         foreach ($associationMappings as $assoc) {
-             $relatedEntities = $class->reflFields[$assoc['fieldName']]->getValue($entity);
-             switch (true) {
-                 case $relatedEntities instanceof PersistentCollection:
-                     // Unwrap so that foreach() does not initialize
-                     $relatedEntities = $relatedEntities->unwrap();
-                     // break; is commented intentionally!
-                 case $relatedEntities instanceof Collection:
-                 case is_array($relatedEntities):
-                     foreach ($relatedEntities as $relatedEntity) {
-                         $this->doDetach($relatedEntity, $visited);
-                     }
-                     break;
-                 case $relatedEntities !== null:
-                     $this->doDetach($relatedEntities, $visited);
-                     break;
-                 default:
-                     // Do nothing
-             }
-         }
-     }
-     /**
-      * Cascades a merge operation to associated entities.
-      *
-      * @param object $entity
-      * @param object $managedCopy
-      * @psalm-param array<int, object> $visited
-      */
-     private function cascadeMerge($entity, $managedCopy, array &$visited): void
-     {
-         $class = $this->em->getClassMetadata(get_class($entity));
-         $associationMappings = array_filter(
-             $class->associationMappings,
-             static function ($assoc) {
-                 return $assoc['isCascadeMerge'];
-             }
-         );
-         foreach ($associationMappings as $assoc) {
-             $relatedEntities = $class->reflFields[$assoc['fieldName']]->getValue($entity);
-             if ($relatedEntities instanceof Collection) {
-                 if ($relatedEntities === $class->reflFields[$assoc['fieldName']]->getValue($managedCopy)) {
-                     continue;
-                 }
-                 if ($relatedEntities instanceof PersistentCollection) {
-                     // Unwrap so that foreach() does not initialize
-                     $relatedEntities = $relatedEntities->unwrap();
-                 }
-                 foreach ($relatedEntities as $relatedEntity) {
-                     $this->doMerge($relatedEntity, $visited, $managedCopy, $assoc);
-                 }
-             } elseif ($relatedEntities !== null) {
-                 $this->doMerge($relatedEntities, $visited, $managedCopy, $assoc);
-             }
-         }
-     }
-     /**
-      * Cascades the save operation to associated entities.
-      *
-      * @param object $entity
-      * @psalm-param array<int, object> $visited
-      */
-     private function cascadePersist($entity, array &$visited): void
-     {
-         if ($entity instanceof Proxy && ! $entity->__isInitialized()) {
-             // nothing to do - proxy is not initialized, therefore we don't do anything with it
-             return;
-         }
-         $class = $this->em->getClassMetadata(get_class($entity));
-         $associationMappings = array_filter(
-             $class->associationMappings,
-             static function ($assoc) {
-                 return $assoc['isCascadePersist'];
-             }
-         );
-         foreach ($associationMappings as $assoc) {
-             $relatedEntities = $class->reflFields[$assoc['fieldName']]->getValue($entity);
-             switch (true) {
-                 case $relatedEntities instanceof PersistentCollection:
-                     // Unwrap so that foreach() does not initialize
-                     $relatedEntities = $relatedEntities->unwrap();
-                     // break; is commented intentionally!
-                 case $relatedEntities instanceof Collection:
-                 case is_array($relatedEntities):
-                     if (($assoc['type'] & ClassMetadata::TO_MANY) <= 0) {
-                         throw ORMInvalidArgumentException::invalidAssociation(
-                             $this->em->getClassMetadata($assoc['targetEntity']),
-                             $assoc,
-                             $relatedEntities
-                         );
-                     }
-                     foreach ($relatedEntities as $relatedEntity) {
-                         $this->doPersist($relatedEntity, $visited);
-                     }
-                     break;
-                 case $relatedEntities !== null:
-                     if (! $relatedEntities instanceof $assoc['targetEntity']) {
-                         throw ORMInvalidArgumentException::invalidAssociation(
-                             $this->em->getClassMetadata($assoc['targetEntity']),
-                             $assoc,
-                             $relatedEntities
-                         );
-                     }
-                     $this->doPersist($relatedEntities, $visited);
-                     break;
-                 default:
-                     // Do nothing
-             }
-         }
-     }
-     /**
-      * Cascades the delete operation to associated entities.
-      *
-      * @param object $entity
-      * @psalm-param array<int, object> $visited
-      */
-     private function cascadeRemove($entity, array &$visited): void
-     {
-         $class = $this->em->getClassMetadata(get_class($entity));
-         $associationMappings = array_filter(
-             $class->associationMappings,
-             static function ($assoc) {
-                 return $assoc['isCascadeRemove'];
-             }
-         );
-         $entitiesToCascade = [];
-         foreach ($associationMappings as $assoc) {
-             if ($entity instanceof Proxy && ! $entity->__isInitialized()) {
-                 $entity->__load();
-             }
-             $relatedEntities = $class->reflFields[$assoc['fieldName']]->getValue($entity);
-             switch (true) {
-                 case $relatedEntities instanceof Collection:
-                 case is_array($relatedEntities):
-                     // If its a PersistentCollection initialization is intended! No unwrap!
-                     foreach ($relatedEntities as $relatedEntity) {
-                         $entitiesToCascade[] = $relatedEntity;
-                     }
-                     break;
-                 case $relatedEntities !== null:
-                     $entitiesToCascade[] = $relatedEntities;
-                     break;
-                 default:
-                     // Do nothing
-             }
-         }
-         foreach ($entitiesToCascade as $relatedEntity) {
-             $this->doRemove($relatedEntity, $visited);
-         }
-     }
-     /**
-      * Acquire a lock on the given entity.
-      *
-      * @param object                     $entity
-      * @param int|DateTimeInterface|null $lockVersion
-      * @psalm-param LockMode::* $lockMode
-      *
-      * @throws ORMInvalidArgumentException
-      * @throws TransactionRequiredException
-      * @throws OptimisticLockException
-      */
-     public function lock($entity, int $lockMode, $lockVersion = null): void
-     {
-         if ($this->getEntityState($entity, self::STATE_DETACHED) !== self::STATE_MANAGED) {
-             throw ORMInvalidArgumentException::entityNotManaged($entity);
-         }
-         $class = $this->em->getClassMetadata(get_class($entity));
-         switch (true) {
-             case $lockMode === LockMode::OPTIMISTIC:
-                 if (! $class->isVersioned) {
-                     throw OptimisticLockException::notVersioned($class->name);
-                 }
-                 if ($lockVersion === null) {
-                     return;
-                 }
-                 if ($entity instanceof Proxy && ! $entity->__isInitialized()) {
-                     $entity->__load();
-                 }
-                 assert($class->versionField !== null);
-                 $entityVersion = $class->reflFields[$class->versionField]->getValue($entity);
-                 // phpcs:ignore SlevomatCodingStandard.Operators.DisallowEqualOperators.DisallowedNotEqualOperator
-                 if ($entityVersion != $lockVersion) {
-                     throw OptimisticLockException::lockFailedVersionMismatch($entity, $lockVersion, $entityVersion);
-                 }
-                 break;
-             case $lockMode === LockMode::NONE:
-             case $lockMode === LockMode::PESSIMISTIC_READ:
-             case $lockMode === LockMode::PESSIMISTIC_WRITE:
-                 if (! $this->em->getConnection()->isTransactionActive()) {
-                     throw TransactionRequiredException::transactionRequired();
-                 }
-                 $oid = spl_object_id($entity);
-                 $this->getEntityPersister($class->name)->lock(
-                     array_combine($class->getIdentifierFieldNames(), $this->entityIdentifiers[$oid]),
-                     $lockMode
-                 );
-                 break;
-             default:
-                 // Do nothing
-         }
-     }
-     /**
-      * Gets the CommitOrderCalculator used by the UnitOfWork to order commits.
-      *
-      * @return CommitOrderCalculator
-      */
-     public function getCommitOrderCalculator()
-     {
-         return new Internal\CommitOrderCalculator();
-     }
-     /**
-      * Clears the UnitOfWork.
-      *
-      * @param string|null $entityName if given, only entities of this type will get detached.
-      *
-      * @return void
-      *
-      * @throws ORMInvalidArgumentException if an invalid entity name is given.
-      */
-     public function clear($entityName = null)
-     {
-         if ($entityName === null) {
-             $this->identityMap                    =
-             $this->entityIdentifiers              =
-             $this->originalEntityData             =
-             $this->entityChangeSets               =
-             $this->entityStates                   =
-             $this->scheduledForSynchronization    =
-             $this->entityInsertions               =
-             $this->entityUpdates                  =
-             $this->entityDeletions                =
-             $this->nonCascadedNewDetectedEntities =
-             $this->collectionDeletions            =
-             $this->collectionUpdates              =
-             $this->extraUpdates                   =
-             $this->readOnlyObjects                =
-             $this->visitedCollections             =
-             $this->eagerLoadingEntities           =
-             $this->orphanRemovals                 = [];
-         } else {
-             Deprecation::triggerIfCalledFromOutside(
-                 'doctrine/orm',
-                 'https://github.com/doctrine/orm/issues/8460',
-                 'Calling %s() with any arguments to clear specific entities is deprecated and will not be supported in Doctrine ORM 3.0.',
-                 __METHOD__
-             );
-             $this->clearIdentityMapForEntityName($entityName);
-             $this->clearEntityInsertionsForEntityName($entityName);
-         }
-         if ($this->evm->hasListeners(Events::onClear)) {
-             $this->evm->dispatchEvent(Events::onClear, new Event\OnClearEventArgs($this->em, $entityName));
-         }
-     }
-     /**
-      * INTERNAL:
-      * Schedules an orphaned entity for removal. The remove() operation will be
-      * invoked on that entity at the beginning of the next commit of this
-      * UnitOfWork.
-      *
-      * @param object $entity
-      *
-      * @return void
-      *
-      * @ignore
-      */
-     public function scheduleOrphanRemoval($entity)
-     {
-         $this->orphanRemovals[spl_object_id($entity)] = $entity;
-     }
-     /**
-      * INTERNAL:
-      * Cancels a previously scheduled orphan removal.
-      *
-      * @param object $entity
-      *
-      * @return void
-      *
-      * @ignore
-      */
-     public function cancelOrphanRemoval($entity)
-     {
-         unset($this->orphanRemovals[spl_object_id($entity)]);
-     }
-     /**
-      * INTERNAL:
-      * Schedules a complete collection for removal when this UnitOfWork commits.
-      *
-      * @return void
-      */
-     public function scheduleCollectionDeletion(PersistentCollection $coll)
-     {
-         $coid = spl_object_id($coll);
-         // TODO: if $coll is already scheduled for recreation ... what to do?
-         // Just remove $coll from the scheduled recreations?
-         unset($this->collectionUpdates[$coid]);
-         $this->collectionDeletions[$coid] = $coll;
-     }
-     /** @return bool */
-     public function isCollectionScheduledForDeletion(PersistentCollection $coll)
-     {
-         return isset($this->collectionDeletions[spl_object_id($coll)]);
-     }
-     /** @return object */
-     private function newInstance(ClassMetadata $class)
-     {
-         $entity = $class->newInstance();
-         if ($entity instanceof ObjectManagerAware) {
-             $entity->injectObjectManager($this->em, $class);
-         }
-         return $entity;
-     }
-     /**
-      * INTERNAL:
-      * Creates an entity. Used for reconstitution of persistent entities.
-      *
-      * Internal note: Highly performance-sensitive method.
-      *
-      * @param string  $className The name of the entity class.
-      * @param mixed[] $data      The data for the entity.
-      * @param mixed[] $hints     Any hints to account for during reconstitution/lookup of the entity.
-      * @psalm-param class-string $className
-      * @psalm-param array<string, mixed> $hints
-      *
-      * @return object The managed entity instance.
-      *
-      * @ignore
-      * @todo Rename: getOrCreateEntity
-      */
-     public function createEntity($className, array $data, &$hints = [])
-     {
-         $class = $this->em->getClassMetadata($className);
-         $id     = $this->identifierFlattener->flattenIdentifier($class, $data);
-         $idHash = implode(' ', $id);
-         if (isset($this->identityMap[$class->rootEntityName][$idHash])) {
-             $entity = $this->identityMap[$class->rootEntityName][$idHash];
-             $oid    = spl_object_id($entity);
-             if (
-                 isset($hints[Query::HINT_REFRESH], $hints[Query::HINT_REFRESH_ENTITY])
-             ) {
-                 $unmanagedProxy = $hints[Query::HINT_REFRESH_ENTITY];
-                 if (
-                     $unmanagedProxy !== $entity
-                     && $unmanagedProxy instanceof Proxy
-                     && $this->isIdentifierEquals($unmanagedProxy, $entity)
-                 ) {
-                     // We will hydrate the given un-managed proxy anyway:
-                     // continue work, but consider it the entity from now on
-                     $entity = $unmanagedProxy;
-                 }
-             }
-             if ($entity instanceof Proxy && ! $entity->__isInitialized()) {
-                 $entity->__setInitialized(true);
-             } else {
-                 if (
-                     ! isset($hints[Query::HINT_REFRESH])
-                     || (isset($hints[Query::HINT_REFRESH_ENTITY]) && $hints[Query::HINT_REFRESH_ENTITY] !== $entity)
-                 ) {
-                     return $entity;
-                 }
-             }
-             // inject ObjectManager upon refresh.
-             if ($entity instanceof ObjectManagerAware) {
-                 $entity->injectObjectManager($this->em, $class);
-             }
-             $this->originalEntityData[$oid] = $data;
-         } else {
-             $entity = $this->newInstance($class);
-             $oid    = spl_object_id($entity);
-             $this->entityIdentifiers[$oid]  = $id;
-             $this->entityStates[$oid]       = self::STATE_MANAGED;
-             $this->originalEntityData[$oid] = $data;
-             $this->identityMap[$class->rootEntityName][$idHash] = $entity;
-             if (isset($hints[Query::HINT_READ_ONLY])) {
-                 $this->readOnlyObjects[$oid] = true;
-             }
-         }
-         if ($entity instanceof NotifyPropertyChanged) {
-             $entity->addPropertyChangedListener($this);
-         }
-         foreach ($data as $field => $value) {
-             if (isset($class->fieldMappings[$field])) {
-                 $class->reflFields[$field]->setValue($entity, $value);
-             }
-         }
-         // Loading the entity right here, if its in the eager loading map get rid of it there.
-         unset($this->eagerLoadingEntities[$class->rootEntityName][$idHash]);
-         if (isset($this->eagerLoadingEntities[$class->rootEntityName]) && ! $this->eagerLoadingEntities[$class->rootEntityName]) {
-             unset($this->eagerLoadingEntities[$class->rootEntityName]);
-         }
-         // Properly initialize any unfetched associations, if partial objects are not allowed.
-         if (isset($hints[Query::HINT_FORCE_PARTIAL_LOAD])) {
-             Deprecation::trigger(
-                 'doctrine/orm',
-                 'https://github.com/doctrine/orm/issues/8471',
-                 'Partial Objects are deprecated (here entity %s)',
-                 $className
-             );
-             return $entity;
-         }
-         foreach ($class->associationMappings as $field => $assoc) {
-             // Check if the association is not among the fetch-joined associations already.
-             if (isset($hints['fetchAlias'], $hints['fetched'][$hints['fetchAlias']][$field])) {
-                 continue;
-             }
-             $targetClass = $this->em->getClassMetadata($assoc['targetEntity']);
-             switch (true) {
-                 case $assoc['type'] & ClassMetadata::TO_ONE:
-                     if (! $assoc['isOwningSide']) {
-                         // use the given entity association
-                         if (isset($data[$field]) && is_object($data[$field]) && isset($this->entityStates[spl_object_id($data[$field])])) {
-                             $this->originalEntityData[$oid][$field] = $data[$field];
-                             $class->reflFields[$field]->setValue($entity, $data[$field]);
-                             $targetClass->reflFields[$assoc['mappedBy']]->setValue($data[$field], $entity);
-                             continue 2;
-                         }
-                         // Inverse side of x-to-one can never be lazy
-                         $class->reflFields[$field]->setValue($entity, $this->getEntityPersister($assoc['targetEntity'])->loadOneToOneEntity($assoc, $entity));
-                         continue 2;
-                     }
-                     // use the entity association
-                     if (isset($data[$field]) && is_object($data[$field]) && isset($this->entityStates[spl_object_id($data[$field])])) {
-                         $class->reflFields[$field]->setValue($entity, $data[$field]);
-                         $this->originalEntityData[$oid][$field] = $data[$field];
-                         break;
-                     }
-                     $associatedId = [];
-                     // TODO: Is this even computed right in all cases of composite keys?
-                     foreach ($assoc['targetToSourceKeyColumns'] as $targetColumn => $srcColumn) {
-                         $joinColumnValue = $data[$srcColumn] ?? null;
-                         if ($joinColumnValue !== null) {
-                             if ($joinColumnValue instanceof BackedEnum) {
-                                 $joinColumnValue = $joinColumnValue->value;
-                             }
-                             if ($targetClass->containsForeignIdentifier) {
-                                 $associatedId[$targetClass->getFieldForColumn($targetColumn)] = $joinColumnValue;
-                             } else {
-                                 $associatedId[$targetClass->fieldNames[$targetColumn]] = $joinColumnValue;
-                             }
-                         } elseif (
-                             $targetClass->containsForeignIdentifier
-                             && in_array($targetClass->getFieldForColumn($targetColumn), $targetClass->identifier, true)
-                         ) {
-                             // the missing key is part of target's entity primary key
-                             $associatedId = [];
-                             break;
-                         }
-                     }
-                     if (! $associatedId) {
-                         // Foreign key is NULL
-                         $class->reflFields[$field]->setValue($entity, null);
-                         $this->originalEntityData[$oid][$field] = null;
-                         break;
-                     }
-                     if (! isset($hints['fetchMode'][$class->name][$field])) {
-                         $hints['fetchMode'][$class->name][$field] = $assoc['fetch'];
-                     }
-                     // Foreign key is set
-                     // Check identity map first
-                     // FIXME: Can break easily with composite keys if join column values are in
-                     //        wrong order. The correct order is the one in ClassMetadata#identifier.
-                     $relatedIdHash = implode(' ', $associatedId);
-                     switch (true) {
-                         case isset($this->identityMap[$targetClass->rootEntityName][$relatedIdHash]):
-                             $newValue = $this->identityMap[$targetClass->rootEntityName][$relatedIdHash];
-                             // If this is an uninitialized proxy, we are deferring eager loads,
-                             // this association is marked as eager fetch, and its an uninitialized proxy (wtf!)
-                             // then we can append this entity for eager loading!
-                             if (
-                                 $hints['fetchMode'][$class->name][$field] === ClassMetadata::FETCH_EAGER &&
-                                 isset($hints[self::HINT_DEFEREAGERLOAD]) &&
-                                 ! $targetClass->isIdentifierComposite &&
-                                 $newValue instanceof Proxy &&
-                                 $newValue->__isInitialized() === false
-                             ) {
-                                 $this->eagerLoadingEntities[$targetClass->rootEntityName][$relatedIdHash] = current($associatedId);
-                             }
-                             break;
-                         case $targetClass->subClasses:
-                             // If it might be a subtype, it can not be lazy. There isn't even
-                             // a way to solve this with deferred eager loading, which means putting
-                             // an entity with subclasses at a *-to-one location is really bad! (performance-wise)
-                             $newValue = $this->getEntityPersister($assoc['targetEntity'])->loadOneToOneEntity($assoc, $entity, $associatedId);
-                             break;
-                         default:
-                             $normalizedAssociatedId = $this->normalizeIdentifier($targetClass, $associatedId);
-                             switch (true) {
-                                 // We are negating the condition here. Other cases will assume it is valid!
-                                 case $hints['fetchMode'][$class->name][$field] !== ClassMetadata::FETCH_EAGER:
-                                     $newValue = $this->em->getProxyFactory()->getProxy($assoc['targetEntity'], $normalizedAssociatedId);
-                                     break;
-                                 // Deferred eager load only works for single identifier classes
-                                 case isset($hints[self::HINT_DEFEREAGERLOAD]) && ! $targetClass->isIdentifierComposite:
-                                     // TODO: Is there a faster approach?
-                                     $this->eagerLoadingEntities[$targetClass->rootEntityName][$relatedIdHash] = current($normalizedAssociatedId);
-                                     $newValue = $this->em->getProxyFactory()->getProxy($assoc['targetEntity'], $normalizedAssociatedId);
-                                     break;
-                                 default:
-                                     // TODO: This is very imperformant, ignore it?
-                                     $newValue = $this->em->find($assoc['targetEntity'], $normalizedAssociatedId);
-                                     break;
-                             }
-                             if ($newValue === null) {
-                                 break;
-                             }
-                             // PERF: Inlined & optimized code from UnitOfWork#registerManaged()
-                             $newValueOid                                                     = spl_object_id($newValue);
-                             $this->entityIdentifiers[$newValueOid]                           = $associatedId;
-                             $this->identityMap[$targetClass->rootEntityName][$relatedIdHash] = $newValue;
-                             if (
-                                 $newValue instanceof NotifyPropertyChanged &&
-                                 ( ! $newValue instanceof Proxy || $newValue->__isInitialized())
-                             ) {
-                                 $newValue->addPropertyChangedListener($this);
-                             }
-                             $this->entityStates[$newValueOid] = self::STATE_MANAGED;
-                             // make sure that when an proxy is then finally loaded, $this->originalEntityData is set also!
-                             break;
-                     }
-                     $this->originalEntityData[$oid][$field] = $newValue;
-                     $class->reflFields[$field]->setValue($entity, $newValue);
-                     if ($assoc['inversedBy'] && $assoc['type'] & ClassMetadata::ONE_TO_ONE && $newValue !== null) {
-                         $inverseAssoc = $targetClass->associationMappings[$assoc['inversedBy']];
-                         $targetClass->reflFields[$inverseAssoc['fieldName']]->setValue($newValue, $entity);
-                     }
-                     break;
-                 default:
-                     // Ignore if its a cached collection
-                     if (isset($hints[Query::HINT_CACHE_ENABLED]) && $class->getFieldValue($entity, $field) instanceof PersistentCollection) {
-                         break;
-                     }
-                     // use the given collection
-                     if (isset($data[$field]) && $data[$field] instanceof PersistentCollection) {
-                         $data[$field]->setOwner($entity, $assoc);
-                         $class->reflFields[$field]->setValue($entity, $data[$field]);
-                         $this->originalEntityData[$oid][$field] = $data[$field];
-                         break;
-                     }
-                     // Inject collection
-                     $pColl = new PersistentCollection($this->em, $targetClass, new ArrayCollection());
-                     $pColl->setOwner($entity, $assoc);
-                     $pColl->setInitialized(false);
-                     $reflField = $class->reflFields[$field];
-                     $reflField->setValue($entity, $pColl);
-                     if ($assoc['fetch'] === ClassMetadata::FETCH_EAGER) {
-                         $this->loadCollection($pColl);
-                         $pColl->takeSnapshot();
-                     }
-                     $this->originalEntityData[$oid][$field] = $pColl;
-                     break;
-             }
-         }
-         // defer invoking of postLoad event to hydration complete step
-         $this->hydrationCompleteHandler->deferPostLoadInvoking($class, $entity);
-         return $entity;
-     }
-     /** @return void */
-     public function triggerEagerLoads()
-     {
-         if (! $this->eagerLoadingEntities) {
-             return;
-         }
-         // avoid infinite recursion
-         $eagerLoadingEntities       = $this->eagerLoadingEntities;
-         $this->eagerLoadingEntities = [];
-         foreach ($eagerLoadingEntities as $entityName => $ids) {
-             if (! $ids) {
-                 continue;
-             }
-             $class = $this->em->getClassMetadata($entityName);
-             $this->getEntityPersister($entityName)->loadAll(
-                 array_combine($class->identifier, [array_values($ids)])
-             );
-         }
-     }
-     /**
-      * Initializes (loads) an uninitialized persistent collection of an entity.
-      *
-      * @param PersistentCollection $collection The collection to initialize.
-      *
-      * @return void
-      *
-      * @todo Maybe later move to EntityManager#initialize($proxyOrCollection). See DDC-733.
-      */
-     public function loadCollection(PersistentCollection $collection)
-     {
-         $assoc     = $collection->getMapping();
-         $persister = $this->getEntityPersister($assoc['targetEntity']);
-         switch ($assoc['type']) {
-             case ClassMetadata::ONE_TO_MANY:
-                 $persister->loadOneToManyCollection($assoc, $collection->getOwner(), $collection);
-                 break;
-             case ClassMetadata::MANY_TO_MANY:
-                 $persister->loadManyToManyCollection($assoc, $collection->getOwner(), $collection);
-                 break;
-         }
-         $collection->setInitialized(true);
-     }
-     /**
-      * Gets the identity map of the UnitOfWork.
-      *
-      * @psalm-return array<class-string, array<string, object|null>>
-      */
-     public function getIdentityMap()
-     {
-         return $this->identityMap;
-     }
-     /**
-      * Gets the original data of an entity. The original data is the data that was
-      * present at the time the entity was reconstituted from the database.
-      *
-      * @param object $entity
-      *
-      * @return mixed[]
-      * @psalm-return array<string, mixed>
-      */
-     public function getOriginalEntityData($entity)
-     {
-         $oid = spl_object_id($entity);
-         return $this->originalEntityData[$oid] ?? [];
-     }
-     /**
-      * @param object  $entity
-      * @param mixed[] $data
-      *
-      * @return void
-      *
-      * @ignore
-      */
-     public function setOriginalEntityData($entity, array $data)
-     {
-         $this->originalEntityData[spl_object_id($entity)] = $data;
-     }
-     /**
-      * INTERNAL:
-      * Sets a property value of the original data array of an entity.
-      *
-      * @param int    $oid
-      * @param string $property
-      * @param mixed  $value
-      *
-      * @return void
-      *
-      * @ignore
-      */
-     public function setOriginalEntityProperty($oid, $property, $value)
-     {
-         $this->originalEntityData[$oid][$property] = $value;
-     }
-     /**
-      * Gets the identifier of an entity.
-      * The returned value is always an array of identifier values. If the entity
-      * has a composite identifier then the identifier values are in the same
-      * order as the identifier field names as returned by ClassMetadata#getIdentifierFieldNames().
-      *
-      * @param object $entity
-      *
-      * @return mixed[] The identifier values.
-      */
-     public function getEntityIdentifier($entity)
-     {
-         if (! isset($this->entityIdentifiers[spl_object_id($entity)])) {
-             throw EntityNotFoundException::noIdentifierFound(get_debug_type($entity));
-         }
-         return $this->entityIdentifiers[spl_object_id($entity)];
-     }
-     /**
-      * Processes an entity instance to extract their identifier values.
-      *
-      * @param object $entity The entity instance.
-      *
-      * @return mixed A scalar value.
-      *
-      * @throws ORMInvalidArgumentException
-      */
-     public function getSingleIdentifierValue($entity)
-     {
-         $class = $this->em->getClassMetadata(get_class($entity));
-         if ($class->isIdentifierComposite) {
-             throw ORMInvalidArgumentException::invalidCompositeIdentifier();
-         }
-         $values = $this->isInIdentityMap($entity)
-             ? $this->getEntityIdentifier($entity)
-             : $class->getIdentifierValues($entity);
-         return $values[$class->identifier[0]] ?? null;
-     }
-     /**
-      * Tries to find an entity with the given identifier in the identity map of
-      * this UnitOfWork.
-      *
-      * @param mixed  $id            The entity identifier to look for.
-      * @param string $rootClassName The name of the root class of the mapped entity hierarchy.
-      * @psalm-param class-string $rootClassName
-      *
-      * @return object|false Returns the entity with the specified identifier if it exists in
-      *                      this UnitOfWork, FALSE otherwise.
-      */
-     public function tryGetById($id, $rootClassName)
-     {
-         $idHash = implode(' ', (array) $id);
-         return $this->identityMap[$rootClassName][$idHash] ?? false;
-     }
-     /**
-      * Schedules an entity for dirty-checking at commit-time.
-      *
-      * @param object $entity The entity to schedule for dirty-checking.
-      *
-      * @return void
-      *
-      * @todo Rename: scheduleForSynchronization
-      */
-     public function scheduleForDirtyCheck($entity)
-     {
-         $rootClassName = $this->em->getClassMetadata(get_class($entity))->rootEntityName;
-         $this->scheduledForSynchronization[$rootClassName][spl_object_id($entity)] = $entity;
-     }
-     /**
-      * Checks whether the UnitOfWork has any pending insertions.
-      *
-      * @return bool TRUE if this UnitOfWork has pending insertions, FALSE otherwise.
-      */
-     public function hasPendingInsertions()
-     {
-         return ! empty($this->entityInsertions);
-     }
-     /**
-      * Calculates the size of the UnitOfWork. The size of the UnitOfWork is the
-      * number of entities in the identity map.
-      *
-      * @return int
-      */
-     public function size()
-     {
-         return array_sum(array_map('count', $this->identityMap));
-     }
-     /**
-      * Gets the EntityPersister for an Entity.
-      *
-      * @param string $entityName The name of the Entity.
-      * @psalm-param class-string $entityName
-      *
-      * @return EntityPersister
-      */
-     public function getEntityPersister($entityName)
-     {
-         if (isset($this->persisters[$entityName])) {
-             return $this->persisters[$entityName];
-         }
-         $class = $this->em->getClassMetadata($entityName);
-         switch (true) {
-             case $class->isInheritanceTypeNone():
-                 $persister = new BasicEntityPersister($this->em, $class);
-                 break;
-             case $class->isInheritanceTypeSingleTable():
-                 $persister = new SingleTablePersister($this->em, $class);
-                 break;
-             case $class->isInheritanceTypeJoined():
-                 $persister = new JoinedSubclassPersister($this->em, $class);
-                 break;
-             default:
-                 throw new RuntimeException('No persister found for entity.');
-         }
-         if ($this->hasCache && $class->cache !== null) {
-             $persister = $this->em->getConfiguration()
-                 ->getSecondLevelCacheConfiguration()
-                 ->getCacheFactory()
-                 ->buildCachedEntityPersister($this->em, $persister, $class);
-         }
-         $this->persisters[$entityName] = $persister;
-         return $this->persisters[$entityName];
-     }
-     /**
-      * Gets a collection persister for a collection-valued association.
-      *
-      * @psalm-param array<string, mixed> $association
-      *
-      * @return CollectionPersister
-      */
-     public function getCollectionPersister(array $association)
-     {
-         $role = isset($association['cache'])
-             ? $association['sourceEntity'] . '::' . $association['fieldName']
-             : $association['type'];
-         if (isset($this->collectionPersisters[$role])) {
-             return $this->collectionPersisters[$role];
-         }
-         $persister = $association['type'] === ClassMetadata::ONE_TO_MANY
-             ? new OneToManyPersister($this->em)
-             : new ManyToManyPersister($this->em);
-         if ($this->hasCache && isset($association['cache'])) {
-             $persister = $this->em->getConfiguration()
-                 ->getSecondLevelCacheConfiguration()
-                 ->getCacheFactory()
-                 ->buildCachedCollectionPersister($this->em, $persister, $association);
-         }
-         $this->collectionPersisters[$role] = $persister;
-         return $this->collectionPersisters[$role];
-     }
-     /**
-      * INTERNAL:
-      * Registers an entity as managed.
-      *
-      * @param object  $entity The entity.
-      * @param mixed[] $id     The identifier values.
-      * @param mixed[] $data   The original entity data.
-      *
-      * @return void
-      */
-     public function registerManaged($entity, array $id, array $data)
-     {
-         $oid = spl_object_id($entity);
-         $this->entityIdentifiers[$oid]  = $id;
-         $this->entityStates[$oid]       = self::STATE_MANAGED;
-         $this->originalEntityData[$oid] = $data;
-         $this->addToIdentityMap($entity);
-         if ($entity instanceof NotifyPropertyChanged && ( ! $entity instanceof Proxy || $entity->__isInitialized())) {
-             $entity->addPropertyChangedListener($this);
-         }
-     }
-     /**
-      * INTERNAL:
-      * Clears the property changeset of the entity with the given OID.
-      *
-      * @param int $oid The entity's OID.
-      *
-      * @return void
-      */
-     public function clearEntityChangeSet($oid)
-     {
-         unset($this->entityChangeSets[$oid]);
-     }
-     /* PropertyChangedListener implementation */
-     /**
-      * Notifies this UnitOfWork of a property change in an entity.
-      *
-      * @param object $sender       The entity that owns the property.
-      * @param string $propertyName The name of the property that changed.
-      * @param mixed  $oldValue     The old value of the property.
-      * @param mixed  $newValue     The new value of the property.
-      *
-      * @return void
-      */
-     public function propertyChanged($sender, $propertyName, $oldValue, $newValue)
-     {
-         $oid   = spl_object_id($sender);
-         $class = $this->em->getClassMetadata(get_class($sender));
-         $isAssocField = isset($class->associationMappings[$propertyName]);
-         if (! $isAssocField && ! isset($class->fieldMappings[$propertyName])) {
-             return; // ignore non-persistent fields
-         }
-         // Update changeset and mark entity for synchronization
-         $this->entityChangeSets[$oid][$propertyName] = [$oldValue, $newValue];
-         if (! isset($this->scheduledForSynchronization[$class->rootEntityName][$oid])) {
-             $this->scheduleForDirtyCheck($sender);
-         }
-     }
-     /**
-      * Gets the currently scheduled entity insertions in this UnitOfWork.
-      *
-      * @psalm-return array<int, object>
-      */
-     public function getScheduledEntityInsertions()
-     {
-         return $this->entityInsertions;
-     }
-     /**
-      * Gets the currently scheduled entity updates in this UnitOfWork.
-      *
-      * @psalm-return array<int, object>
-      */
-     public function getScheduledEntityUpdates()
-     {
-         return $this->entityUpdates;
-     }
-     /**
-      * Gets the currently scheduled entity deletions in this UnitOfWork.
-      *
-      * @psalm-return array<int, object>
-      */
-     public function getScheduledEntityDeletions()
-     {
-         return $this->entityDeletions;
-     }
-     /**
-      * Gets the currently scheduled complete collection deletions
-      *
-      * @psalm-return array<int, PersistentCollection<array-key, object>>
-      */
-     public function getScheduledCollectionDeletions()
-     {
-         return $this->collectionDeletions;
-     }
-     /**
-      * Gets the currently scheduled collection inserts, updates and deletes.
-      *
-      * @psalm-return array<int, PersistentCollection<array-key, object>>
-      */
-     public function getScheduledCollectionUpdates()
-     {
-         return $this->collectionUpdates;
-     }
-     /**
-      * Helper method to initialize a lazy loading proxy or persistent collection.
-      *
-      * @param object $obj
-      *
-      * @return void
-      */
-     public function initializeObject($obj)
-     {
-         if ($obj instanceof Proxy) {
-             $obj->__load();
-             return;
-         }
-         if ($obj instanceof PersistentCollection) {
-             $obj->initialize();
-         }
-     }
-     /**
-      * Helper method to show an object as string.
-      *
-      * @param object $obj
-      */
-     private static function objToStr($obj): string
-     {
-         return method_exists($obj, '__toString') ? (string) $obj : get_debug_type($obj) . '@' . spl_object_id($obj);
-     }
-     /**
-      * Marks an entity as read-only so that it will not be considered for updates during UnitOfWork#commit().
-      *
-      * This operation cannot be undone as some parts of the UnitOfWork now keep gathering information
-      * on this object that might be necessary to perform a correct update.
-      *
-      * @param object $object
-      *
-      * @return void
-      *
-      * @throws ORMInvalidArgumentException
-      */
-     public function markReadOnly($object)
-     {
-         if (! is_object($object) || ! $this->isInIdentityMap($object)) {
-             throw ORMInvalidArgumentException::readOnlyRequiresManagedEntity($object);
-         }
-         $this->readOnlyObjects[spl_object_id($object)] = true;
-     }
-     /**
-      * Is this entity read only?
-      *
-      * @param object $object
-      *
-      * @return bool
-      *
-      * @throws ORMInvalidArgumentException
-      */
-     public function isReadOnly($object)
-     {
-         if (! is_object($object)) {
-             throw ORMInvalidArgumentException::readOnlyRequiresManagedEntity($object);
-         }
-         return isset($this->readOnlyObjects[spl_object_id($object)]);
-     }
-     /**
-      * Perform whatever processing is encapsulated here after completion of the transaction.
-      */
-     private function afterTransactionComplete(): void
-     {
-         $this->performCallbackOnCachedPersister(static function (CachedPersister $persister) {
-             $persister->afterTransactionComplete();
-         });
-     }
-     /**
-      * Perform whatever processing is encapsulated here after completion of the rolled-back.
-      */
-     private function afterTransactionRolledBack(): void
-     {
-         $this->performCallbackOnCachedPersister(static function (CachedPersister $persister) {
-             $persister->afterTransactionRolledBack();
-         });
-     }
-     /**
-      * Performs an action after the transaction.
-      */
-     private function performCallbackOnCachedPersister(callable $callback): void
-     {
-         if (! $this->hasCache) {
-             return;
-         }
-         foreach (array_merge($this->persisters, $this->collectionPersisters) as $persister) {
-             if ($persister instanceof CachedPersister) {
-                 $callback($persister);
-             }
-         }
-     }
-     private function dispatchOnFlushEvent(): void
-     {
-         if ($this->evm->hasListeners(Events::onFlush)) {
-             $this->evm->dispatchEvent(Events::onFlush, new OnFlushEventArgs($this->em));
-         }
-     }
-     private function dispatchPostFlushEvent(): void
-     {
-         if ($this->evm->hasListeners(Events::postFlush)) {
-             $this->evm->dispatchEvent(Events::postFlush, new PostFlushEventArgs($this->em));
-         }
-     }
-     /**
-      * Verifies if two given entities actually are the same based on identifier comparison
-      *
-      * @param object $entity1
-      * @param object $entity2
-      */
-     private function isIdentifierEquals($entity1, $entity2): bool
-     {
-         if ($entity1 === $entity2) {
-             return true;
-         }
-         $class = $this->em->getClassMetadata(get_class($entity1));
-         if ($class !== $this->em->getClassMetadata(get_class($entity2))) {
-             return false;
-         }
-         $oid1 = spl_object_id($entity1);
-         $oid2 = spl_object_id($entity2);
-         $id1 = $this->entityIdentifiers[$oid1] ?? $this->identifierFlattener->flattenIdentifier($class, $class->getIdentifierValues($entity1));
-         $id2 = $this->entityIdentifiers[$oid2] ?? $this->identifierFlattener->flattenIdentifier($class, $class->getIdentifierValues($entity2));
-         return $id1 === $id2 || implode(' ', $id1) === implode(' ', $id2);
-     }
-     /** @throws ORMInvalidArgumentException */
-     private function assertThatThereAreNoUnintentionallyNonPersistedAssociations(): void
-     {
-         $entitiesNeedingCascadePersist = array_diff_key($this->nonCascadedNewDetectedEntities, $this->entityInsertions);
-         $this->nonCascadedNewDetectedEntities = [];
-         if ($entitiesNeedingCascadePersist) {
-             throw ORMInvalidArgumentException::newEntitiesFoundThroughRelationships(
-                 array_values($entitiesNeedingCascadePersist)
-             );
-         }
-     }
-     /**
-      * @param object $entity
-      * @param object $managedCopy
-      *
-      * @throws ORMException
-      * @throws OptimisticLockException
-      * @throws TransactionRequiredException
-      */
-     private function mergeEntityStateIntoManagedCopy($entity, $managedCopy): void
-     {
-         if (! $this->isLoaded($entity)) {
-             return;
-         }
-         if (! $this->isLoaded($managedCopy)) {
-             $managedCopy->__load();
-         }
-         $class = $this->em->getClassMetadata(get_class($entity));
-         foreach ($this->reflectionPropertiesGetter->getProperties($class->name) as $prop) {
-             $name = $prop->name;
-             $prop->setAccessible(true);
-             if (! isset($class->associationMappings[$name])) {
-                 if (! $class->isIdentifier($name)) {
-                     $prop->setValue($managedCopy, $prop->getValue($entity));
-                 }
-             } else {
-                 $assoc2 = $class->associationMappings[$name];
-                 if ($assoc2['type'] & ClassMetadata::TO_ONE) {
-                     $other = $prop->getValue($entity);
-                     if ($other === null) {
-                         $prop->setValue($managedCopy, null);
-                     } else {
-                         if ($other instanceof Proxy && ! $other->__isInitialized()) {
-                             // do not merge fields marked lazy that have not been fetched.
-                             continue;
-                         }
-                         if (! $assoc2['isCascadeMerge']) {
-                             if ($this->getEntityState($other) === self::STATE_DETACHED) {
-                                 $targetClass = $this->em->getClassMetadata($assoc2['targetEntity']);
-                                 $relatedId   = $targetClass->getIdentifierValues($other);
-                                 if ($targetClass->subClasses) {
-                                     $other = $this->em->find($targetClass->name, $relatedId);
-                                 } else {
-                                     $other = $this->em->getProxyFactory()->getProxy(
-                                         $assoc2['targetEntity'],
-                                         $relatedId
-                                     );
-                                     $this->registerManaged($other, $relatedId, []);
-                                 }
-                             }
-                             $prop->setValue($managedCopy, $other);
-                         }
-                     }
-                 } else {
-                     $mergeCol = $prop->getValue($entity);
-                     if ($mergeCol instanceof PersistentCollection && ! $mergeCol->isInitialized()) {
-                         // do not merge fields marked lazy that have not been fetched.
-                         // keep the lazy persistent collection of the managed copy.
-                         continue;
-                     }
-                     $managedCol = $prop->getValue($managedCopy);
-                     if (! $managedCol) {
-                         $managedCol = new PersistentCollection(
-                             $this->em,
-                             $this->em->getClassMetadata($assoc2['targetEntity']),
-                             new ArrayCollection()
-                         );
-                         $managedCol->setOwner($managedCopy, $assoc2);
-                         $prop->setValue($managedCopy, $managedCol);
-                     }
-                     if ($assoc2['isCascadeMerge']) {
-                         $managedCol->initialize();
-                         // clear and set dirty a managed collection if its not also the same collection to merge from.
-                         if (! $managedCol->isEmpty() && $managedCol !== $mergeCol) {
-                             $managedCol->unwrap()->clear();
-                             $managedCol->setDirty(true);
-                             if (
-                                 $assoc2['isOwningSide']
-                                 && $assoc2['type'] === ClassMetadata::MANY_TO_MANY
-                                 && $class->isChangeTrackingNotify()
-                             ) {
-                                 $this->scheduleForDirtyCheck($managedCopy);
-                             }
-                         }
-                     }
-                 }
-             }
-             if ($class->isChangeTrackingNotify()) {
-                 // Just treat all properties as changed, there is no other choice.
-                 $this->propertyChanged($managedCopy, $name, null, $prop->getValue($managedCopy));
-             }
-         }
-     }
-     /**
-      * This method called by hydrators, and indicates that hydrator totally completed current hydration cycle.
-      * Unit of work able to fire deferred events, related to loading events here.
-      *
-      * @internal should be called internally from object hydrators
-      *
-      * @return void
-      */
-     public function hydrationComplete()
-     {
-         $this->hydrationCompleteHandler->hydrationComplete();
-     }
-     private function clearIdentityMapForEntityName(string $entityName): void
-     {
-         if (! isset($this->identityMap[$entityName])) {
-             return;
-         }
-         $visited = [];
-         foreach ($this->identityMap[$entityName] as $entity) {
-             $this->doDetach($entity, $visited, false);
-         }
-     }
-     private function clearEntityInsertionsForEntityName(string $entityName): void
-     {
-         foreach ($this->entityInsertions as $hash => $entity) {
-             // note: performance optimization - `instanceof` is much faster than a function call
-             if ($entity instanceof $entityName && get_class($entity) === $entityName) {
-                 unset($this->entityInsertions[$hash]);
-             }
-         }
-     }
-     /**
-      * @param mixed $identifierValue
-      *
-      * @return mixed the identifier after type conversion
-      *
-      * @throws MappingException if the entity has more than a single identifier.
-      */
-     private function convertSingleFieldIdentifierToPHPValue(ClassMetadata $class, $identifierValue)
-     {
-         return $this->em->getConnection()->convertToPHPValue(
-             $identifierValue,
-             $class->getTypeOfField($class->getSingleIdentifierFieldName())
-         );
-     }
-     /**
-      * Given a flat identifier, this method will produce another flat identifier, but with all
-      * association fields that are mapped as identifiers replaced by entity references, recursively.
-      *
-      * @param mixed[] $flatIdentifier
-      *
-      * @return array<string, mixed>
-      */
-     private function normalizeIdentifier(ClassMetadata $targetClass, array $flatIdentifier): array
-     {
-         $normalizedAssociatedId = [];
-         foreach ($targetClass->getIdentifierFieldNames() as $name) {
-             if (! array_key_exists($name, $flatIdentifier)) {
-                 continue;
-             }
-             if (! $targetClass->isSingleValuedAssociation($name)) {
-                 $normalizedAssociatedId[$name] = $flatIdentifier[$name];
-                 continue;
-             }
-             $targetIdMetadata = $this->em->getClassMetadata($targetClass->getAssociationTargetClass($name));
-             // Note: the ORM prevents using an entity with a composite identifier as an identifier association
-             //       therefore, reset($targetIdMetadata->identifier) is always correct
-             $normalizedAssociatedId[$name] = $this->em->getReference(
-                 $targetIdMetadata->getName(),
-                 $this->normalizeIdentifier(
-                     $targetIdMetadata,
-                     [(string) reset($targetIdMetadata->identifier) => $flatIdentifier[$name]]
-                 )
-             );
-         }
-         return $normalizedAssociatedId;
-     }
- }
-