namespace Drupal\Core\Config\Checkpoint
| Object name | File name | Summary |
|---|---|---|
| Checkpoint | core/lib/Drupal/Core/Config/Checkpoint/Checkpoint.php | A value object to store information about a checkpoint. |
| CheckpointExistsException | core/lib/Drupal/Core/Config/Checkpoint/CheckpointExistsException.php | Thrown when trying to add a checkpoint with an ID that already exists. |
| CheckpointListInterface | core/lib/Drupal/Core/Config/Checkpoint/CheckpointListInterface.php | Maintains a list of checkpoints. |
| CheckpointStorage | core/lib/Drupal/Core/Config/Checkpoint/CheckpointStorage.php | Provides a config storage that can make checkpoints. |
| CheckpointStorageInterface | core/lib/Drupal/Core/Config/Checkpoint/CheckpointStorageInterface.php | Provides an interface for checkpoint storages. |
| LinearHistory | core/lib/Drupal/Core/Config/Checkpoint/LinearHistory.php | A chronological list of Checkpoint objects. |
| NoCheckpointsException | core/lib/Drupal/Core/Config/Checkpoint/NoCheckpointsException.php | Thrown when using the checkpoint storage with no checkpoints. |
| UnknownCheckpointException | core/lib/Drupal/Core/Config/Checkpoint/UnknownCheckpointException.php | Thrown when trying to access a checkpoint that does not exist. |