namespace Drupal\Core\Lock
| Object name | File name | Summary |
|---|---|---|
| DatabaseLockBackend | core/lib/Drupal/Core/Lock/DatabaseLockBackend.php | Defines the database lock backend. This is the default backend in Drupal. |
| LockAcquiringException | core/lib/Drupal/Core/Lock/LockAcquiringException.php | LockAcquiringException is thrown when a lock cannot be acquired. |
| LockBackendAbstract | core/lib/Drupal/Core/Lock/LockBackendAbstract.php | Non backend related common methods implementation for lock backends. |
| LockBackendInterface | core/lib/Drupal/Core/Lock/LockBackendInterface.php | Lock backend interface. |
| NullLockBackend | core/lib/Drupal/Core/Lock/NullLockBackend.php | Defines a Null lock backend. |
| PersistentDatabaseLockBackend | core/lib/Drupal/Core/Lock/PersistentDatabaseLockBackend.php | Defines the persistent database lock backend. |