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ChangelogRecord

laminar_core::operator::window

Struct ChangelogRecord 

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pub struct ChangelogRecord {
    pub operation: CdcOperation,
    pub weight: i32,
    pub emit_timestamp: i64,
    pub event: Event,
}
Expand description

Changelog record with Z-set weight for CDC pipelines.

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§operation: CdcOperation

The CDC operation type.

§weight: i32

Z-set weight (+1 for insert, -1 for delete).

§emit_timestamp: i64

Timestamp when this change was emitted.

§event: Event

The event data.

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impl ChangelogRecord

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pub fn insert(event: Event, emit_timestamp: i64) -> Self

Creates an insert record (+1 weight).

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pub fn delete(event: Event, emit_timestamp: i64) -> Self

Creates a delete record (-1 weight).

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pub fn update( old_event: Event, new_event: Event, emit_timestamp: i64, ) -> (Self, Self)

Creates an update retraction pair (UpdateBefore, UpdateAfter).

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pub fn new(operation: CdcOperation, event: Event, emit_timestamp: i64) -> Self

Creates a record from raw parts.

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pub fn is_insert(&self) -> bool

Returns true for insert-type records.

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pub fn is_delete(&self) -> bool

Returns true for delete-type records.

Trait Implementations§

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impl Clone for ChangelogRecord

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fn clone(&self) -> ChangelogRecord

Returns a duplicate of the value. Read more
1.0.0 · Source§

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

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

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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<T> Any for T
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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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type ArchivedMetadata = ()

The archived version of the pointer metadata for this type.
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fn pointer_metadata( _: &<T as ArchivePointee>::ArchivedMetadata, ) -> <T as Pointee>::Metadata

Converts some archived metadata to the pointer metadata for itself.
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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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