org.apache.flink.runtime.state

类 StateSnapshotContextSynchronousImpl

java.lang.Object

org.apache.flink.runtime.state.StateSnapshotContextSynchronousImpl

所有已实现的接口:

FunctionSnapshotContext, ManagedSnapshotContext, StateSnapshotContext

public class StateSnapshotContextSynchronousImpl
extends Object
implements StateSnapshotContext

This class is a default implementation for StateSnapshotContext.

字段概要

字段

限定符和类型	字段和说明
protected RunnableFuture<SnapshotResult<KeyedStateHandle>>	keyedStateCheckpointClosingFuture
protected RunnableFuture<SnapshotResult<OperatorStateHandle>>	operatorStateCheckpointClosingFuture

构造器概要

构造器

构造器和说明
StateSnapshotContextSynchronousImpl(long checkpointId, long checkpointTimestamp)
StateSnapshotContextSynchronousImpl(long checkpointId, long checkpointTimestamp, CheckpointStreamFactory streamFactory, KeyGroupRange keyGroupRange, org.apache.flink.core.fs.CloseableRegistry closableRegistry)

方法概要

限定符和类型	方法和说明
void	closeExceptionally()
long	getCheckpointId() Returns the ID of the checkpoint for which the snapshot is taken.
long	getCheckpointTimestamp() Returns timestamp (wall clock time) when the master node triggered the checkpoint for which the state snapshot is taken.
RunnableFuture<SnapshotResult<KeyedStateHandle>>	getKeyedStateStreamFuture()
RunnableFuture<SnapshotResult<OperatorStateHandle>>	getOperatorStateStreamFuture()
KeyedStateCheckpointOutputStream	getRawKeyedOperatorStateOutput() Returns an output stream for keyed state
OperatorStateCheckpointOutputStream	getRawOperatorStateOutput() Returns an output stream for operator state

从类继承的方法 java.lang.Object

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

字段详细资料

keyedStateCheckpointClosingFuture

protected RunnableFuture<SnapshotResult<KeyedStateHandle>> keyedStateCheckpointClosingFuture

operatorStateCheckpointClosingFuture

protected RunnableFuture<SnapshotResult<OperatorStateHandle>> operatorStateCheckpointClosingFuture

构造器详细资料

StateSnapshotContextSynchronousImpl

@VisibleForTesting
public StateSnapshotContextSynchronousImpl(long checkpointId,
                                                              long checkpointTimestamp)

StateSnapshotContextSynchronousImpl

public StateSnapshotContextSynchronousImpl(long checkpointId,
                                           long checkpointTimestamp,
                                           CheckpointStreamFactory streamFactory,
                                           KeyGroupRange keyGroupRange,
                                           org.apache.flink.core.fs.CloseableRegistry closableRegistry)

方法详细资料

getCheckpointId

public long getCheckpointId()

从接口复制的说明: ManagedSnapshotContext

Returns the ID of the checkpoint for which the snapshot is taken.

The checkpoint ID is guaranteed to be strictly monotonously increasing across checkpoints. For two completed checkpoints A and B, ID_B > ID_A means that checkpoint B subsumes checkpoint A, i.e., checkpoint B contains a later state than checkpoint A.

指定者:

getCheckpointId 在接口中 ManagedSnapshotContext

getCheckpointTimestamp

public long getCheckpointTimestamp()

从接口复制的说明: ManagedSnapshotContext

Returns timestamp (wall clock time) when the master node triggered the checkpoint for which the state snapshot is taken.

指定者:

getCheckpointTimestamp 在接口中 ManagedSnapshotContext

getRawKeyedOperatorStateOutput

public KeyedStateCheckpointOutputStream getRawKeyedOperatorStateOutput()
                                                                throws Exception

从接口复制的说明: StateSnapshotContext

Returns an output stream for keyed state

指定者:

getRawKeyedOperatorStateOutput 在接口中 StateSnapshotContext

抛出:

Exception

getRawOperatorStateOutput

public OperatorStateCheckpointOutputStream getRawOperatorStateOutput()
                                                              throws Exception

从接口复制的说明: StateSnapshotContext

Returns an output stream for operator state

指定者:

getRawOperatorStateOutput 在接口中 StateSnapshotContext

抛出:

Exception

getKeyedStateStreamFuture

@Nonnull
public RunnableFuture<SnapshotResult<KeyedStateHandle>> getKeyedStateStreamFuture()
                                                                                    throws IOException

抛出:

IOException

getOperatorStateStreamFuture

@Nonnull
public RunnableFuture<SnapshotResult<OperatorStateHandle>> getOperatorStateStreamFuture()
                                                                                          throws IOException

抛出:

IOException

closeExceptionally

public void closeExceptionally()
                        throws IOException

抛出:

IOException