public function StorageComparer::__construct in Drupal 9

Same name and namespace in other branches

1. 8 core/lib/Drupal/Core/Config/StorageComparer.php \Drupal\Core\Config\StorageComparer::__construct()

Constructs the Configuration storage comparer.

Parameters

\Drupal\Core\Config\StorageInterface $source_storage: Storage object used to read configuration.

\Drupal\Core\Config\StorageInterface $target_storage: Storage object used to write configuration.

File

core/lib/Drupal/Core/Config/StorageComparer.php, line 92

Class

StorageComparer

Defines a config storage comparer.

Namespace

Drupal\Core\Config

Code

public function __construct(StorageInterface $source_storage, StorageInterface $target_storage) {

  // Wrap the storages in a static cache so that multiple reads of the same
  // raw configuration object are not costly.
  $this->sourceCacheStorage = new MemoryBackend();
  $this->sourceStorage = new CachedStorage($source_storage, $this->sourceCacheStorage);
  $this->targetCacheStorage = new MemoryBackend();
  $this->targetStorage = new CachedStorage($target_storage, $this->targetCacheStorage);
  $this->changelist[StorageInterface::DEFAULT_COLLECTION] = $this
    ->getEmptyChangelist();
}