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SagaPayload

Struct SagaPayload 

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pub struct SagaPayload {
    pub content_type: String,
    pub schema_id: String,
    pub body: Vec<u8>,
}
Expand description

业务作用:在 API、Outbox 与参与方之间保留正文的精确字节和 schema 身份。

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§content_type: String

正文的规范媒体类型。

§schema_id: String

与冻结步骤一致的 schema 身份。

§body: Vec<u8>

原始业务字节;JSON 空白、整数文本和对象字段顺序均保持不变。

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impl SagaPayload

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pub fn new( content_type: impl Into<String>, schema_id: impl Into<String>, body: Vec<u8>, ) -> Result<SagaPayload, SagaPayloadError>

业务作用:构造可进入摘要和持久消息的原始正文,不重新编码业务内容。

参数说明:

  • content_type:正文声明的媒体类型原文。
  • schema_id:正文解释合同的 schema 身份,可按 validate 规则为空。
  • body:需要完整保留的原始正文。

返回:保存原始字节且 validate 通过时返回正文,媒体类型、schema 或适用的 JSON 校验失败时报错,不重新编码正文或证明业务 schema 语义。

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pub fn validate(&self) -> Result<(), SagaPayloadError>

业务作用:在进入摘要、业务解码或持久消息前复验公开正文结构。

参数说明: 无。

返回:媒体与 schema 合法、JSON 可解析时成功;不改写原始正文。

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pub fn contract(&self) -> SagaPayloadContract

业务作用:提取定义与 capability 必须共同确认的正文解释合同。

参数说明: 无。

返回:不包含业务字节的媒体类型和 schema 身份。

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pub fn json(value: Value) -> SagaPayload

业务作用:把已有 JSON 值转换为无 schema 的规范 JSON 字节正文。

参数说明:

  • value:调用方已构造或解析的 JSON 值。

返回:返回 application/json、空 schema_id 与 JSON 值重新序列化的字节;不保留原始空白或字段文本形式,也不执行外部 schema 校验。

Trait Implementations§

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impl Clone for SagaPayload

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fn clone(&self) -> SagaPayload

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for SagaPayload

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for SagaPayload

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fn deserialize<__D>( __deserializer: __D, ) -> Result<SagaPayload, <__D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Eq for SagaPayload

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impl PartialEq for SagaPayload

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl Serialize for SagaPayload

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fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for SagaPayload

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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Immutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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