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SourceCheckpointDelta

laminar_connectors::checkpoint

Struct SourceCheckpointDelta 

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pub struct SourceCheckpointDelta { /* private fields */ }
Expand description

Offset changes for one assignment-scoped source batch.

The input-channel allocation is shared with the complete checkpoint published for the assignment. A runtime must merge this delta into that exact checkpoint before durability. Some(value) upserts an offset; None removes it.

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impl SourceCheckpointDelta

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pub fn new( assignment_version: NonZeroU64, input_channels: Arc<[Vec<u8>]>, offset_changes: HashMap<String, Option<String>>, ) -> Result<Self, ConnectorError>

Creates an incremental cursor for an already-published assignment.

§Errors

Returns an error when the delta has no changed offsets.

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pub const fn assignment_version(&self) -> NonZeroU64

Assignment publication owning this delta.

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pub const fn input_channels_arc(&self) -> &Arc<[Vec<u8>]> ⓘ

Shared input-channel inventory for the owning assignment.

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pub fn validate_base( &self, base: &SourceCheckpoint, ) -> Result<(), ConnectorError>

Validates that this delta extends the supplied complete cursor.

§Errors

Returns an error when the base cursor is unbound or belongs to a different assignment or input-channel roster.

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pub fn merge(&mut self, newer: Self) -> Result<(), ConnectorError>

Coalesces a later batch delta from the same assignment.

§Errors

Returns an error when newer belongs to a different assignment or input-channel roster.

Trait Implementations§

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impl Clone for SourceCheckpointDelta

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fn clone(&self) -> SourceCheckpointDelta

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 SourceCheckpointDelta

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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 Eq for SourceCheckpointDelta

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impl PartialEq for SourceCheckpointDelta

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fn eq(&self, other: &SourceCheckpointDelta) -> 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 StructuralPartialEq for SourceCheckpointDelta

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