Struct Operation 

pub struct Operation { /* private fields */ }

One exact state transition. The complete output snapshot makes omission impossible: the declared operation cannot claim a target it does not produce.

Implementations

impl Operation

pub fn new(before: RelationId, after: Schema, kind: OperationKind) -> Self

Creates an operation from its exact input identity and output snapshot.

pub fn before(&self) -> &RelationId

Required input schema identity.

pub fn after(&self) -> &Schema

Produced schema.

pub fn kind(&self) -> &OperationKind

Described edit.

Trait Implementations

impl Clone for Operation

fn clone(&self) -> Operation

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Operation

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

Formats the value using the given formatter.