ChangelogStateBackendHandle (Flink : 2.0-SNAPSHOT API)

All Superinterfaces:

CheckpointBoundKeyedStateHandle, CompositeStateHandle, KeyedStateHandle, Serializable, StateObject

All Known Implementing Classes:

ChangelogStateBackendHandle.ChangelogStateBackendHandleImpl, ChangelogStateBackendLocalHandle
```
@Internal
public interface ChangelogStateBackendHandle
extends KeyedStateHandle, CheckpointBoundKeyedStateHandle
```
A handle to ChangelogStateBackend state. Consists of the base and delta parts. Base part references materialized state (e.g. SST files), while delta part references state changes that were not not materialized at the time of the snapshot. Both are potentially empty lists as there can be no state or multiple states (e.g. after rescaling).

Nested Class Summary

Nested Classes
Modifier and Type Interface Description

static class ChangelogStateBackendHandle.ChangelogStateBackendHandleImpl
- Nested classes/interfaces inherited from interface org.apache.flink.runtime.state.StateObject
  StateObject.StateObjectLocation, StateObject.StateObjectSizeStatsCollector

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`long`	`getMaterializationID()`
`List<KeyedStateHandle>`	`getMaterializedStateHandles()`
`List<ChangelogStateHandle>`	`getNonMaterializedStateHandles()`
`ChangelogStateBackendHandle`	`rebound(long checkpointId)`	Returns a new `CheckpointBoundKeyedStateHandle` Rebounding checkpoint id to a specific checkpoint id.

Methods inherited from interface org.apache.flink.runtime.state.CheckpointBoundKeyedStateHandle
getCheckpointId

Methods inherited from interface org.apache.flink.runtime.state.CompositeStateHandle
getCheckpointedSize, registerSharedStates

Methods inherited from interface org.apache.flink.runtime.state.KeyedStateHandle
getIntersection, getKeyGroupRange, getStateHandleId

Methods inherited from interface org.apache.flink.runtime.state.StateObject
collectSizeStats, discardState, getStateSize

- Method Detail
  - getMaterializedStateHandles
```
List<KeyedStateHandle> getMaterializedStateHandles()
```
  - getNonMaterializedStateHandles
```
List<ChangelogStateHandle> getNonMaterializedStateHandles()
```
  - getMaterializationID
```
long getMaterializationID()
```
  - rebound
```
ChangelogStateBackendHandle rebound(long checkpointId)
```
    Description copied from interface: CheckpointBoundKeyedStateHandle
    
    Returns a new CheckpointBoundKeyedStateHandle Rebounding checkpoint id to a specific checkpoint id.
    
    Specified by:
    
    rebound in interface CheckpointBoundKeyedStateHandle
    
    Parameters:
    
    checkpointId - rebounded checkpoint id.