Struct RollbackHandler 

pub struct RollbackHandler { /* private fields */ }

Handles rollback of executed steps

Tracks rollback actions for each step and executes them in reverse order to restore the system to its pre-execution state.

Implementations

impl RollbackHandler

pub fn new() -> Self

Create a new rollback handler

pub fn track_action(&mut self, step_id: String, action: RollbackAction)

Track a rollback action for a step

Arguments

• step_id - ID of the step being tracked
• action - Rollback action to execute if needed

pub fn track_step(&mut self, step: &ExecutionStep)

Track rollback action from a step

Extracts the rollback action from a step and tracks it.

pub fn execute_rollback(&mut self) -> ExecutionResult<Vec<RollbackResult>>

Execute rollback for all tracked actions

Executes rollback actions in reverse order (LIFO) to undo changes. Stops on first error unless partial rollback is enabled.

Returns

A vector of rollback results for each action executed

pub fn execute_partial_rollback( &mut self, step_ids: &[String], ) -> ExecutionResult<Vec<RollbackResult>>

Execute partial rollback for a subset of steps

Executes rollback only for the specified step IDs.

Arguments

• step_ids - IDs of steps to rollback

Returns

A vector of rollback results for executed actions

pub fn verify_completeness(&self) -> bool

Verify rollback completeness

Checks that all rollback actions have been executed and the system is in a consistent state.

Returns

true if rollback is complete and consistent, false otherwise

pub fn action_count(&self) -> usize

Get the number of tracked rollback actions

pub fn is_in_progress(&self) -> bool

Check if rollback is currently in progress

pub fn clear(&mut self)

Clear all tracked rollback actions

Trait Implementations

impl Default for RollbackHandler

fn default() -> Self

Returns the “default value” for a type.