Package org.apache.flink.table.types.inference

Interface StateTypeStrategy

All Superinterfaces:

TypeStrategy

@PublicEvolving
public interface StateTypeStrategy
extends TypeStrategy

Strategy for inferring a function call's intermediate result data type (i.e. state entry).

Method Summary

Modifier and Type	Method	Description
Optional<Duration>	getTimeToLive(org.apache.flink.table.types.inference.CallContext callContext)	The time-to-live (TTL) duration that automatically cleans up the state entry.
static StateTypeStrategy	of(TypeStrategy typeStrategy)
static StateTypeStrategy	of(TypeStrategy typeStrategy, Duration timeToLive)

Methods inherited from interface org.apache.flink.table.types.inference.TypeStrategy

inferType

Method Details

of

static StateTypeStrategy of(TypeStrategy typeStrategy)

of

static StateTypeStrategy of(TypeStrategy typeStrategy,
 @Nullable
 Duration timeToLive)

getTimeToLive

Optional<Duration> getTimeToLive(org.apache.flink.table.types.inference.CallContext callContext)

The time-to-live (TTL) duration that automatically cleans up the state entry.

Returning Optional.empty() will fall back to default behavior. Returning a value equal or greater than 0 means setting a custom TTL for this state entry and ignoring the global defaults.