org.apache.flink.runtime.state

类 SharedStateRegistryImpl

java.lang.Object

org.apache.flink.runtime.state.SharedStateRegistryImpl

所有已实现的接口:

AutoCloseable, SharedStateRegistry

@Internal
public class SharedStateRegistryImpl
extends Object
implements SharedStateRegistry

SharedStateRegistry implementation.

字段概要

从接口继承的字段 org.apache.flink.runtime.state.SharedStateRegistry

DEFAULT_FACTORY

构造器概要

构造器

构造器和说明
SharedStateRegistryImpl() Default uses direct executor to delete unreferenced state
SharedStateRegistryImpl(Executor asyncDisposalExecutor)

方法概要

限定符和类型	方法和说明
void	checkpointCompleted(long checkpointId)
void	close()
void	registerAll(Iterable<? extends CompositeStateHandle> stateHandles, long checkpointID) Register given shared states in the registry.
void	registerAllAfterRestored(CompletedCheckpoint checkpoint, RestoreMode mode) Set the lowest checkpoint ID below which no state is discarded, inclusive.
StreamStateHandle	registerReference(SharedStateRegistryKey registrationKey, StreamStateHandle state, long checkpointID) Register a reference to the given shared state in the registry.
String	toString()
void	unregisterUnusedState(long lowestCheckpointID) Unregister state that is not referenced by the given checkpoint ID or any newer.

从类继承的方法 java.lang.Object

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

构造器详细资料

SharedStateRegistryImpl

public SharedStateRegistryImpl()

Default uses direct executor to delete unreferenced state

SharedStateRegistryImpl

public SharedStateRegistryImpl(Executor asyncDisposalExecutor)

方法详细资料

registerReference

public StreamStateHandle registerReference(SharedStateRegistryKey registrationKey,
                                           StreamStateHandle state,
                                           long checkpointID)

从接口复制的说明: SharedStateRegistry

Register a reference to the given shared state in the registry. If there is already a state handle registered under the given key, the "new" state handle is disposed .

IMPORTANT: caller should check the state handle returned by the result, because the registry is performing de-duplication and could potentially return a handle that is supposed to replace the one from the registration request.

指定者:

registerReference 在接口中 SharedStateRegistry

state - the shared state for which we register a reference.

checkpointID - which uses the state

返回:

the result of this registration request, consisting of the state handle that is registered under the key by the end of the operation and its current reference count.

unregisterUnusedState

public void unregisterUnusedState(long lowestCheckpointID)

从接口复制的说明: SharedStateRegistry

Unregister state that is not referenced by the given checkpoint ID or any newer.

指定者:

unregisterUnusedState 在接口中 SharedStateRegistry

参数:

lowestCheckpointID - which is still valid

registerAll

public void registerAll(Iterable<? extends CompositeStateHandle> stateHandles,
                        long checkpointID)

从接口复制的说明: SharedStateRegistry

Register given shared states in the registry.

NOTE: For state from checkpoints from other jobs or runs (i.e. after recovery), please use SharedStateRegistry.registerAllAfterRestored(CompletedCheckpoint, RestoreMode)

指定者:

registerAll 在接口中 SharedStateRegistry

参数:

stateHandles - The shared states to register.

checkpointID - which uses the states.

registerAllAfterRestored

public void registerAllAfterRestored(CompletedCheckpoint checkpoint,
                                     RestoreMode mode)

从接口复制的说明: SharedStateRegistry

Set the lowest checkpoint ID below which no state is discarded, inclusive.

After recovery from an incremental checkpoint, its state should NOT be discarded, even if not used anymore (unless recovering in CLAIM mode).

This should hold for both cases: when recovering from that initial checkpoint; and from any subsequent checkpoint derived from it.

指定者:

registerAllAfterRestored 在接口中 SharedStateRegistry

checkpointCompleted

public void checkpointCompleted(long checkpointId)

指定者:

checkpointCompleted 在接口中 SharedStateRegistry

toString

public String toString()

覆盖:

toString 在类中 Object

close

public void close()

指定者:

close 在接口中 AutoCloseable