Struct SagaManagementExpectation 

pub struct SagaManagementExpectation { /* private fields */ }

业务作用：冻结调用方观察到的 Saga 状态与控制版本，使管理动作在同一事务内拒绝过期快照。

Implementations

impl SagaManagementExpectation

pub fn new( expected_state_version: Option<u64>, expected_control_version: Option<u64>, ) -> Self

业务作用：构造管理动作的可选双版本 CAS 合同。

参数说明：两个 expected version 分别约束业务状态和控制状态；未提供的一侧不参与比较。

返回：返回不可变前置条件，最终比较必须在持有实例事务锁后执行。

Trait Implementations

impl Clone for SagaManagementExpectation

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SagaManagementExpectation

impl Debug for SagaManagementExpectation

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

Formats the value using the given formatter.

impl Default for SagaManagementExpectation

fn default() -> Self

Returns the “default value” for a type.

impl Eq for SagaManagementExpectation

impl PartialEq for SagaManagementExpectation

fn eq(&self, other: &Self) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for SagaManagementExpectation