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PerWorkflowSubscription

Struct PerWorkflowSubscription 

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pub struct PerWorkflowSubscription {
    pub namespace: String,
    pub workflow_id: Option<WorkflowId>,
    pub resume_from_seq: Option<u64>,
}
Expand description

Subscribe to events for a single workflow in the caller’s namespace.

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§namespace: String§workflow_id: Option<WorkflowId>§resume_from_seq: Option<u64>

First per-workflow sequence number the caller wants — not the last seq already seen. When present, the server replays recorded history events with seq >= resume_from_seq in order, then splices into the live stream with no gaps and no duplicates. Sequence numbers start at 1; 0 is rejected as invalid_input. Absent = live tail only (current behaviour). resume_from_seq = 1 replays the full history.

Only per-workflow subscriptions carry a resume cursor: per-workflow seq is the only ordering that exists, so FilteredSubscription and FirehoseSubscription are live-only by design (see those messages).

RESERVED compaction signal (documentation-only, no code yet): a cursor older than the earliest retained event yields not_found with error_type “HistoryCompacted”; callers restart with a fresh subscription.

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impl PerWorkflowSubscription

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pub fn resume_from_seq(&self) -> u64

Returns the value of resume_from_seq, or the default value if resume_from_seq is unset.

Trait Implementations§

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impl Clone for PerWorkflowSubscription

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fn clone(&self) -> PerWorkflowSubscription

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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

Formats the value using the given formatter. Read more
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impl Default for PerWorkflowSubscription

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fn default() -> Self

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for PerWorkflowSubscription

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

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

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impl Hash for PerWorkflowSubscription

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Message for PerWorkflowSubscription

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fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.
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fn clear(&mut self)

Clears the message, resetting all fields to their default.
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fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>
where Self: Sized,

Encodes the message to a buffer. Read more
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fn encode_to_vec(&self) -> Vec<u8>
where Self: Sized,

Encodes the message to a newly allocated buffer.
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fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>
where Self: Sized,

Encodes the message with a length-delimiter to a buffer. Read more
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fn encode_length_delimited_to_vec(&self) -> Vec<u8>
where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.
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fn decode(buf: impl Buf) -> Result<Self, DecodeError>
where Self: Default,

Decodes an instance of the message from a buffer. Read more
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fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>
where Self: Default,

Decodes a length-delimited instance of the message from the buffer.
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fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>
where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self. Read more
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fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>
where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.
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impl PartialEq for PerWorkflowSubscription

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fn eq(&self, other: &PerWorkflowSubscription) -> 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 PerWorkflowSubscription

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

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

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

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fn type_id(&self) -> TypeId

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

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fn borrow_mut(&mut self) -> &mut T

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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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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<Q, K> Equivalent<K> for Q
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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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fn equivalent(&self, key: &K) -> bool

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