org.apache.flink.streaming.api.checkpoint

Interface WithMasterCheckpointHook<E>

Type Parameters:

E - The type of the data stored by the hook in the checkpoint, or Void, if none.

All Superinterfaces:

Serializable

All Known Subinterfaces:

ExternallyInducedSource<T,CD>

@PublicEvolving
public interface WithMasterCheckpointHook<E>
extends Serializable

This interface can be implemented by streaming functions that need to trigger a "global action" on the master (in the checkpoint coordinator) as part of every checkpoint and restore operation.

Method Summary

Modifier and Type	Method and Description
org.apache.flink.runtime.checkpoint.MasterTriggerRestoreHook<E>	createMasterTriggerRestoreHook() Creates the hook that should be called by the checkpoint coordinator.

Method Detail

createMasterTriggerRestoreHook

org.apache.flink.runtime.checkpoint.MasterTriggerRestoreHook<E> createMasterTriggerRestoreHook()

Creates the hook that should be called by the checkpoint coordinator.