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<?php
declare(strict_types=1);
namespace Cycle\ORM\Heap;
/**
* NullHeap is a heap implementation that does nothing.
* It is useful when you are using ORM only for reading and you don't need to cache the loaded data.
*
* Effects of using NullHeap:
* - Less memory consumption
* - No need to clean the heap after each request in long-living applications
* - You won't be able to update entities in the database. ORM will consider each loaded entity as newly created.
*/
final class NullHeap implements HeapInterface
{
public function has(object $entity): bool
return false;
}
public function get(object $entity): ?Node
return null;
public function find(string $role, array $scope): ?object
public function attach(object $entity, Node $node, array $index = []): void
public function detach(object $entity): void
public function clean(): void
cycle /
orm
