org.apache.flink.runtime.state

类 AbstractManagedMemoryStateBackend

java.lang.Object

org.apache.flink.runtime.state.AbstractStateBackend

org.apache.flink.runtime.state.AbstractManagedMemoryStateBackend

所有已实现的接口:

Serializable, StateBackend

public abstract class AbstractManagedMemoryStateBackend
extends AbstractStateBackend

Abstract base class for state backends that use managed memory.

另请参阅:

序列化表格

字段概要

从类继承的字段 org.apache.flink.runtime.state.AbstractStateBackend

latencyTrackingConfigBuilder

构造器概要

构造器

构造器和说明
AbstractManagedMemoryStateBackend()

方法概要

限定符和类型	方法和说明
abstract <K> AbstractKeyedStateBackend<K>	createKeyedStateBackend(Environment env, org.apache.flink.api.common.JobID jobID, String operatorIdentifier, org.apache.flink.api.common.typeutils.TypeSerializer<K> keySerializer, int numberOfKeyGroups, KeyGroupRange keyGroupRange, TaskKvStateRegistry kvStateRegistry, TtlTimeProvider ttlTimeProvider, org.apache.flink.metrics.MetricGroup metricGroup, Collection<KeyedStateHandle> stateHandles, org.apache.flink.core.fs.CloseableRegistry cancelStreamRegistry, double managedMemoryFraction) Creates a new CheckpointableKeyedStateBackend with the given managed memory fraction.
boolean	useManagedMemory() Whether the state backend uses Flink's managed memory.

从类继承的方法 org.apache.flink.runtime.state.AbstractStateBackend

createKeyedStateBackend, createOperatorStateBackend, getCompressionDecorator

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.runtime.state.StateBackend

getName, supportsNoClaimRestoreMode, supportsSavepointFormat

构造器详细资料

AbstractManagedMemoryStateBackend

public AbstractManagedMemoryStateBackend()

方法详细资料

createKeyedStateBackend

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

从接口复制的说明: StateBackend

Creates a new CheckpointableKeyedStateBackend with the given managed memory fraction. Backends that use managed memory are required to implement this interface.

抛出:

Exception

useManagedMemory

public boolean useManagedMemory()

从接口复制的说明: StateBackend

Whether the state backend uses Flink's managed memory.