Struct Checkpoint 

pub struct Checkpoint {
    pub id: u64,
    pub timestamp_ms: i64,
    pub events_processed: u64,
    pub window_states: HashMap<String, WindowCheckpoint>,
    pub pattern_states: HashMap<String, PatternCheckpoint>,
    pub metadata: HashMap<String, String>,
    pub context_states: HashMap<String, EngineCheckpoint>,
}

Checkpoint containing all engine state

Fields

id: u64

Checkpoint ID (monotonically increasing)

timestamp_ms: i64

Timestamp when checkpoint was created

events_processed: u64

Number of events processed at checkpoint time

window_states: HashMap<String, WindowCheckpoint>

Window states by stream name

pattern_states: HashMap<String, PatternCheckpoint>

Pattern matcher states

metadata: HashMap<String, String>

Custom metadata

context_states: HashMap<String, EngineCheckpoint>

Engine states per context (for coordinated checkpointing)

Trait Implementations

impl Clone for Checkpoint

fn clone(&self) -> Checkpoint

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Checkpoint

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Checkpoint

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for Checkpoint

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

where __S: Serializer,

Serialize this value into the given Serde serializer.