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NullWatermarkStore

Struct NullWatermarkStore

pub struct NullWatermarkStore;

Expand description

No-op watermark store — provides backward-compatible in-memory-only behavior.

All loads return defaults; all saves are silently discarded.

Trait Implementations§

impl WatermarkStore for NullWatermarkStore

fn load(&self, _table_name: &str) -> Result<Option<Watermark>, SidecarError>

Load the watermark for a table. Returns None if no watermark has been persisted for the table yet.

fn save(&self, _table_name: &str, _wm: &Watermark) -> Result<(), SidecarError>

Persist the watermark for a table.

fn load_global_seq(&self) -> Result<i64, SidecarError>

Load the persisted global sequence counter. Returns 1 if nothing has been persisted yet (the starting value).

fn save_global_seq(&self, _seq: i64) -> Result<(), SidecarError>

Persist the global sequence counter.

Auto Trait Implementations§

impl Freeze for NullWatermarkStore

impl RefUnwindSafe for NullWatermarkStore

impl Send for NullWatermarkStore

impl Sync for NullWatermarkStore

impl Unpin for NullWatermarkStore

impl UnsafeUnpin for NullWatermarkStore

impl UnwindSafe for NullWatermarkStore

Blanket Implementations§

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