interface WorkspaceManagerInterface

interface WorkspaceManagerInterface {
    
    /**
     * Returns whether an entity type can belong to a workspace or not.
     *
     * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
     *   The entity type to check.
     *
     * @return bool
     *   TRUE if the entity type can belong to a workspace, FALSE otherwise.
     */
    public function isEntityTypeSupported(EntityTypeInterface $entity_type);
    
    /**
     * Returns an array of entity types that can belong to workspaces.
     *
     * @return \Drupal\Core\Entity\EntityTypeInterface[]
     *   The entity types what can belong to workspaces.
     */
    public function getSupportedEntityTypes();
    
    /**
     * Determines whether a workspace is active in the current request.
     *
     * @return bool
     *   TRUE if a workspace is active, FALSE otherwise.
     */
    public function hasActiveWorkspace();
    
    /**
     * Gets the active workspace.
     *
     * @return \Drupal\workspaces\WorkspaceInterface
     *   The active workspace entity object.
     */
    public function getActiveWorkspace();
    
    /**
     * Sets the active workspace via the workspace negotiators.
     *
     * @param \Drupal\workspaces\WorkspaceInterface $workspace
     *   The workspace to set as active.
     *
     * @return $this
     *
     * @throws \Drupal\workspaces\WorkspaceAccessException
     *   Thrown when the current user doesn't have access to view the workspace.
     */
    public function setActiveWorkspace(WorkspaceInterface $workspace);
    
    /**
     * Unsets the active workspace via the workspace negotiators.
     *
     * @return $this
     */
    public function switchToLive();
    
    /**
     * Executes the given callback function in the context of a workspace.
     *
     * @param string $workspace_id
     *   The ID of a workspace.
     * @param callable $function
     *   The callback to be executed.
     *
     * @return mixed
     *   The callable's return value.
     */
    public function executeInWorkspace($workspace_id, callable $function);
    
    /**
     * Executes the given callback function without any workspace context.
     *
     * @param callable $function
     *   The callback to be executed.
     *
     * @return mixed
     *   The callable's return value.
     */
    public function executeOutsideWorkspace(callable $function);
    
    /**
     * Determines whether runtime entity operations should be altered.
     *
     * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
     *   The entity type to check.
     *
     * @return bool
     *   TRUE if the entity operations or queries should be altered in the current
     *   request, FALSE otherwise.
     */
    public function shouldAlterOperations(EntityTypeInterface $entity_type);
    
    /**
     * Deletes the revisions associated with deleted workspaces.
     */
    public function purgeDeletedWorkspacesBatch();

}