Struct CheckpointMeta 

pub struct CheckpointMeta {
    pub source_offset: String,
    pub current_watermark: DateTime<Utc>,
    pub snapshot_id: SnapshotId,
}

Minimal checkpoint metadata for resuming processing after restart. Includes a source offset (opaque), current watermark, and the state snapshot id.

Fields

source_offset: String

Opaque source offset (e.g., file byte offset, Kafka partition@offset, etc.)

current_watermark: DateTime<Utc>

Last committed watermark at the time of checkpoint.

snapshot_id: SnapshotId

Snapshot identifier returned by the KeyValueState backend.

Trait Implementations

impl Clone for CheckpointMeta

fn clone(&self) -> CheckpointMeta

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CheckpointMeta

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CheckpointMeta

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for CheckpointMeta

fn eq(&self, other: &CheckpointMeta) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for CheckpointMeta

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for CheckpointMeta

impl StructuralPartialEq for CheckpointMeta