Enum SagaCommandProcessingError 

#[non_exhaustive]
pub enum SagaCommandProcessingError {
    ProducerUnauthorized,
    IdentityInvalid,
    RouteUnauthorized,
    ContractInvalid,
}

业务作用：用封闭类型标记 Saga command 的不可恢复投递错误。

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

ProducerUnauthorized

transport 认证出的 producer 不在参与方信任投影中。

IdentityInvalid

envelope 身份、派生身份或编码不合法。

RouteUnauthorized

command route 无权承载目标 workflow 步骤。

ContractInvalid

phase、取消能力或 payload 违反已发布步骤合同。

Implementations

impl SagaCommandProcessingError

pub const fn dead_letter_reason(self) -> &'static str

业务作用：返回可安全写入 DLT header 的稳定原因码。

参数说明: 无。

返回：不含 envelope、payload 或底层错误的低基数原因码。

pub fn from_dead_letter_reason(reason: &str) -> Option<Self>

业务作用：把未受信原因码收窄为封闭 command 错误。

参数说明：reason 是 connector 收到的候选原因码。

返回：精确命中白名单时返回对应类型；未知文本返回 None。

Trait Implementations

impl Clone for SagaCommandProcessingError

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 SagaCommandProcessingError

impl Debug for SagaCommandProcessingError

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

Formats the value using the given formatter.

impl Display for SagaCommandProcessingError

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

业务作用：输出稳定、脱敏的 command 错误分类。

参数说明：formatter 是标准格式化目标。

返回：分类文本写入成功返回 Ok；格式化失败返回对应错误。

impl Eq for SagaCommandProcessingError

impl Error for SagaCommandProcessingError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for SagaCommandProcessingError

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for SagaCommandProcessingError