org.apache.flink.runtime.state

Class StateInitializationContextImpl

java.lang.Object

org.apache.flink.runtime.state.StateInitializationContextImpl

All Implemented Interfaces:

FunctionInitializationContext, ManagedInitializationContext, StateInitializationContext

public class StateInitializationContextImpl
extends Object
implements StateInitializationContext

Default implementation of StateInitializationContext.

Constructor Summary

Constructors

Constructor and Description
StateInitializationContextImpl(Long restoredCheckpointId, OperatorStateStore operatorStateStore, KeyedStateStore keyedStateStore, Iterable<KeyGroupStatePartitionStreamProvider> rawKeyedStateInputs, Iterable<StatePartitionStreamProvider> rawOperatorStateInputs)

Method Summary

Modifier and Type	Method and Description
KeyedStateStore	getKeyedStateStore() Returns an interface that allows for registering keyed state with the backend.
OperatorStateStore	getOperatorStateStore() Returns an interface that allows for registering operator state with the backend.
Iterable<KeyGroupStatePartitionStreamProvider>	getRawKeyedStateInputs() Returns an iterable to obtain input streams for previously stored keyed state partitions that are assigned to this operator.
Iterable<StatePartitionStreamProvider>	getRawOperatorStateInputs() Returns an iterable to obtain input streams for previously stored operator state partitions that are assigned to this operator.
OptionalLong	getRestoredCheckpointId() Returns id of the restored checkpoint, if state was restored from the snapshot of a previous execution.
boolean	isRestored() Returns true, if state was restored from the snapshot of a previous execution.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StateInitializationContextImpl

public StateInitializationContextImpl(@Nullable
                                      Long restoredCheckpointId,
                                      OperatorStateStore operatorStateStore,
                                      KeyedStateStore keyedStateStore,
                                      Iterable<KeyGroupStatePartitionStreamProvider> rawKeyedStateInputs,
                                      Iterable<StatePartitionStreamProvider> rawOperatorStateInputs)

Method Detail

isRestored

public boolean isRestored()

Description copied from interface: ManagedInitializationContext

Returns true, if state was restored from the snapshot of a previous execution.

Specified by:

isRestored in interface ManagedInitializationContext

getRestoredCheckpointId

public OptionalLong getRestoredCheckpointId()

Description copied from interface: ManagedInitializationContext

Returns id of the restored checkpoint, if state was restored from the snapshot of a previous execution.

Specified by:

getRestoredCheckpointId in interface ManagedInitializationContext

getRawOperatorStateInputs

public Iterable<StatePartitionStreamProvider> getRawOperatorStateInputs()

Description copied from interface: StateInitializationContext

Returns an iterable to obtain input streams for previously stored operator state partitions that are assigned to this operator.

Specified by:

getRawOperatorStateInputs in interface StateInitializationContext

getRawKeyedStateInputs

public Iterable<KeyGroupStatePartitionStreamProvider> getRawKeyedStateInputs()

Description copied from interface: StateInitializationContext

Returns an iterable to obtain input streams for previously stored keyed state partitions that are assigned to this operator.

Specified by:

getRawKeyedStateInputs in interface StateInitializationContext

getOperatorStateStore

public OperatorStateStore getOperatorStateStore()

Description copied from interface: ManagedInitializationContext

Returns an interface that allows for registering operator state with the backend.

Specified by:

getOperatorStateStore in interface ManagedInitializationContext

getKeyedStateStore

public KeyedStateStore getKeyedStateStore()

Description copied from interface: ManagedInitializationContext

Returns an interface that allows for registering keyed state with the backend.

Specified by:

getKeyedStateStore in interface ManagedInitializationContext