org.apache.flink.state.changelog

Class AbstractChangelogStateBackend

java.lang.Object

org.apache.flink.state.changelog.AbstractChangelogStateBackend

All Implemented Interfaces:

Serializable, org.apache.flink.runtime.state.delegate.DelegatingStateBackend, org.apache.flink.runtime.state.StateBackend

Direct Known Subclasses:

ChangelogStateBackend, DeactivatedChangelogStateBackend

@Internal
public abstract class AbstractChangelogStateBackend
extends Object
implements org.apache.flink.runtime.state.delegate.DelegatingStateBackend, org.apache.flink.runtime.state.StateBackend

An abstract base implementation of the StateBackend interface whose subclasses use delegatedStateBackend and State changes to restore.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.flink.runtime.state.StateBackend	delegatedStateBackend

Method Summary

Modifier and Type	Method and Description
<K> org.apache.flink.runtime.state.CheckpointableKeyedStateBackend<K>	createKeyedStateBackend(org.apache.flink.runtime.execution.Environment env, org.apache.flink.api.common.JobID jobID, String operatorIdentifier, org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, int numberOfKeyGroups, org.apache.flink.runtime.state.KeyGroupRange keyGroupRange, org.apache.flink.runtime.query.TaskKvStateRegistry kvStateRegistry, org.apache.flink.runtime.state.ttl.TtlTimeProvider ttlTimeProvider, org.apache.flink.metrics.MetricGroup metricGroup, Collection<org.apache.flink.runtime.state.KeyedStateHandle> stateHandles, org.apache.flink.core.fs.CloseableRegistry cancelStreamRegistry)
<K> org.apache.flink.runtime.state.CheckpointableKeyedStateBackend<K>	createKeyedStateBackend(org.apache.flink.runtime.execution.Environment env, org.apache.flink.api.common.JobID jobID, String operatorIdentifier, org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, int numberOfKeyGroups, org.apache.flink.runtime.state.KeyGroupRange keyGroupRange, org.apache.flink.runtime.query.TaskKvStateRegistry kvStateRegistry, org.apache.flink.runtime.state.ttl.TtlTimeProvider ttlTimeProvider, org.apache.flink.metrics.MetricGroup metricGroup, Collection<org.apache.flink.runtime.state.KeyedStateHandle> stateHandles, org.apache.flink.core.fs.CloseableRegistry cancelStreamRegistry, double managedMemoryFraction)
org.apache.flink.runtime.state.OperatorStateBackend	createOperatorStateBackend(org.apache.flink.runtime.execution.Environment env, String operatorIdentifier, Collection<org.apache.flink.runtime.state.OperatorStateHandle> stateHandles, org.apache.flink.core.fs.CloseableRegistry cancelStreamRegistry)
org.apache.flink.runtime.state.StateBackend	getDelegatedStateBackend()
protected abstract <K> org.apache.flink.runtime.state.CheckpointableKeyedStateBackend<K>	restore(org.apache.flink.runtime.execution.Environment env, String operatorIdentifier, org.apache.flink.runtime.state.KeyGroupRange keyGroupRange, org.apache.flink.runtime.state.ttl.TtlTimeProvider ttlTimeProvider, org.apache.flink.metrics.MetricGroup metricGroup, Collection<org.apache.flink.runtime.state.changelog.ChangelogStateBackendHandle> stateBackendHandles, ChangelogBackendRestoreOperation.BaseBackendBuilder<K> baseBackendBuilder)
boolean	useManagedMemory()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.runtime.state.delegate.DelegatingStateBackend

getName

Methods inherited from interface org.apache.flink.runtime.state.StateBackend

supportsNoClaimRestoreMode, supportsSavepointFormat

Field Detail

delegatedStateBackend

protected final org.apache.flink.runtime.state.StateBackend delegatedStateBackend

Method Detail

createKeyedStateBackend

public <K> org.apache.flink.runtime.state.CheckpointableKeyedStateBackend<K> createKeyedStateBackend(org.apache.flink.runtime.execution.Environment env,
                                                                                                     org.apache.flink.api.common.JobID jobID,
                                                                                                     String operatorIdentifier,
                                                                                                     org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer,
                                                                                                     int numberOfKeyGroups,
                                                                                                     org.apache.flink.runtime.state.KeyGroupRange keyGroupRange,
                                                                                                     org.apache.flink.runtime.query.TaskKvStateRegistry kvStateRegistry,
                                                                                                     org.apache.flink.runtime.state.ttl.TtlTimeProvider ttlTimeProvider,
                                                                                                     org.apache.flink.metrics.MetricGroup metricGroup,
                                                                                                     @Nonnull
                                                                                                     Collection<org.apache.flink.runtime.state.KeyedStateHandle> stateHandles,
                                                                                                     org.apache.flink.core.fs.CloseableRegistry cancelStreamRegistry)
                                                                                              throws Exception

Specified by:

createKeyedStateBackend in interface org.apache.flink.runtime.state.StateBackend

Throws:

Exception

createKeyedStateBackend

public <K> org.apache.flink.runtime.state.CheckpointableKeyedStateBackend<K> createKeyedStateBackend(org.apache.flink.runtime.execution.Environment env,
                                                                                                     org.apache.flink.api.common.JobID jobID,
                                                                                                     String operatorIdentifier,
                                                                                                     org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer,
                                                                                                     int numberOfKeyGroups,
                                                                                                     org.apache.flink.runtime.state.KeyGroupRange keyGroupRange,
                                                                                                     org.apache.flink.runtime.query.TaskKvStateRegistry kvStateRegistry,
                                                                                                     org.apache.flink.runtime.state.ttl.TtlTimeProvider ttlTimeProvider,
                                                                                                     org.apache.flink.metrics.MetricGroup metricGroup,
                                                                                                     @Nonnull
                                                                                                     Collection<org.apache.flink.runtime.state.KeyedStateHandle> stateHandles,
                                                                                                     org.apache.flink.core.fs.CloseableRegistry cancelStreamRegistry,
                                                                                                     double managedMemoryFraction)
                                                                                              throws Exception

Specified by:

createKeyedStateBackend in interface org.apache.flink.runtime.state.StateBackend

Throws:

Exception

createOperatorStateBackend

public org.apache.flink.runtime.state.OperatorStateBackend createOperatorStateBackend(org.apache.flink.runtime.execution.Environment env,
                                                                                      String operatorIdentifier,
                                                                                      @Nonnull
                                                                                      Collection<org.apache.flink.runtime.state.OperatorStateHandle> stateHandles,
                                                                                      org.apache.flink.core.fs.CloseableRegistry cancelStreamRegistry)
                                                                               throws Exception

Specified by:

createOperatorStateBackend in interface org.apache.flink.runtime.state.StateBackend

Throws:

Exception

useManagedMemory

public boolean useManagedMemory()

Specified by:

useManagedMemory in interface org.apache.flink.runtime.state.StateBackend

getDelegatedStateBackend

public org.apache.flink.runtime.state.StateBackend getDelegatedStateBackend()

Specified by:

getDelegatedStateBackend in interface org.apache.flink.runtime.state.delegate.DelegatingStateBackend

restore

protected abstract <K> org.apache.flink.runtime.state.CheckpointableKeyedStateBackend<K> restore(org.apache.flink.runtime.execution.Environment env,
                                                                                                 String operatorIdentifier,
                                                                                                 org.apache.flink.runtime.state.KeyGroupRange keyGroupRange,
                                                                                                 org.apache.flink.runtime.state.ttl.TtlTimeProvider ttlTimeProvider,
                                                                                                 org.apache.flink.metrics.MetricGroup metricGroup,
                                                                                                 Collection<org.apache.flink.runtime.state.changelog.ChangelogStateBackendHandle> stateBackendHandles,
                                                                                                 ChangelogBackendRestoreOperation.BaseBackendBuilder<K> baseBackendBuilder)
                                                                                          throws Exception

Throws:

Exception