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OutputSegmentRef

laminar_core::checkpoint::subscription

Struct OutputSegmentRef 

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pub struct OutputSegmentRef {
    pub protocol_version: SubscriptionProtocolVersion,
    pub object_key: String,
    pub stream_generation: StreamGeneration,
    pub partition: OutputPartitionId,
    pub first_sequence: PartitionSequence,
    pub exclusive_end_sequence: PartitionSequence,
    pub frame_count: u64,
    pub row_count: u64,
    pub encoded_length: u64,
    pub schema_fingerprint: SubscriptionDigest,
    pub payload_digest: SubscriptionDigest,
}
Expand description

Exact immutable object containing a contiguous partition-frame range.

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§protocol_version: SubscriptionProtocolVersion

Exact segment envelope protocol.

§object_key: String

Provider-neutral object key inside the checkpoint namespace.

§stream_generation: StreamGeneration

Durable stream incarnation.

§partition: OutputPartitionId

Stable vnode partition.

§first_sequence: PartitionSequence

First frame sequence in the segment.

§exclusive_end_sequence: PartitionSequence

Exclusive frame sequence at the end of the segment.

§frame_count: u64

Exact number of frames.

§row_count: u64

Exact number of Arrow rows across all frames.

§encoded_length: u64

Exact encoded object length.

§schema_fingerprint: SubscriptionDigest

Fingerprint of every frame’s user schema.

§payload_digest: SubscriptionDigest

SHA-256 of the exact object bytes.

Trait Implementations§

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impl Clone for OutputSegmentRef

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fn clone(&self) -> OutputSegmentRef

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 OutputSegmentRef

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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<'de> Deserialize<'de> for OutputSegmentRef

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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 OutputSegmentRef

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impl PartialEq for OutputSegmentRef

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

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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 OutputSegmentRef

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where T: RefUnwindSafe + Send + Sync,

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type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.
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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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Checks if this value is equivalent to the given key. Read more
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