Package org.apache.flink.state.changelog

Interface Summary

Interface	Description
ChangelogState	State used by ChangelogKeyedStateBackend.
KvStateChangeLogger<Value,Namespace>	A logger for some key-partitioned state (not only ValueState.
StateChangeLogger<Value,Namespace>	Logs changes to a state created by ChangelogKeyedStateBackend.

Class Summary

Class	Description
AbstractChangelogStateBackend	An abstract base implementation of the StateBackend interface whose subclasses use delegatedStateBackend and State changes to restore.
ChangelogKeyedStateBackend<K>	A KeyedStateBackend that keeps state on the underlying delegated keyed state backend as well as on the state change log.
ChangelogKeyGroupedPriorityQueue<T>	A KeyGroupedInternalPriorityQueue that keeps state on the underlying delegated KeyGroupedInternalPriorityQueue as well as on the state change log.
ChangelogStateBackend	This state backend holds the working state in the underlying delegatedStateBackend, and forwards state changes to State Changelog.
ChangelogStateFactory	Maintains the lifecycle of all ChangelogStates.
DeactivatedChangelogStateBackend	This state backend use delegatedStateBackend and State changes to restore to the delegatedStateBackend in which switching Changelog from enabled to disabled.

Enum Summary

Enum	Description
StateChangeOperation	The operation applied to ChangelogState.