Struct MigrationPlan 

pub struct MigrationPlan { /* private fields */ }

MigrationPlan

Explicit, ordered migration contract composed of named row-op steps. The plan id is stable caller-owned metadata for observability and retries. The plan version is caller-owned monotonic metadata for upgrade safety. Steps are executed sequentially in insertion order and never reordered.

Implementations

impl MigrationPlan

pub fn new( id: impl Into<String>, version: u64, steps: Vec<MigrationStep>, ) -> Result<Self, InternalError>

Build one validated migration plan.

pub const fn id(&self) -> &str

Return this plan’s stable id.

pub const fn version(&self) -> u64

Return this plan’s stable version.

pub const fn len(&self) -> usize

Return the number of steps in this plan.

pub const fn is_empty(&self) -> bool

Return whether this plan has no steps.

Trait Implementations

impl Clone for MigrationPlan

fn clone(&self) -> MigrationPlan

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MigrationPlan

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.