Package org.apache.kafka.streams.state

Interface SessionBytesStoreSupplier

All Superinterfaces:

StoreSupplier<SessionStore<org.apache.kafka.common.utils.Bytes,byte[]>>

public interface SessionBytesStoreSupplier
extends StoreSupplier<SessionStore<org.apache.kafka.common.utils.Bytes,byte[]>>

A store supplier that can be used to create one or more SessionStore<Byte, byte[]> instances. For any stores implementing the SessionStore<Byte, byte[]> interface, null value bytes are considered as "not exist". This means:

1. null value bytes in put operations should be treated as delete.
2. null value bytes should never be returned in range query results.

Method Summary

Modifier and Type	Method	Description
long	retentionPeriod()	The time period for which the SessionStore will retain historic data.
long	segmentIntervalMs()	The size of a segment, in milliseconds.

Methods inherited from interface org.apache.kafka.streams.state.StoreSupplier

get, metricsScope, name

Method Details

segmentIntervalMs

long segmentIntervalMs()

The size of a segment, in milliseconds. Used when caching is enabled to segment the cache and reduce the amount of data that needs to be scanned when performing range queries.

Returns:

segmentInterval in milliseconds

retentionPeriod

long retentionPeriod()

The time period for which the SessionStore will retain historic data.

Returns:

retentionPeriod