org.apache.flink.state.common

接口 PeriodicMaterializationManager.MaterializationTarget

封闭类:

PeriodicMaterializationManager

@NotThreadSafe
public static interface PeriodicMaterializationManager.MaterializationTarget

PeriodicMaterializationManager.MaterializationRunnable provider and consumer, i.e. state backend.

字段概要

字段

限定符和类型	字段和说明
static PeriodicMaterializationManager.MaterializationTarget	NO_OP

方法概要

限定符和类型	方法和说明
void	handleMaterializationFailureOrCancellation(long materializationID, org.apache.flink.runtime.state.changelog.SequenceNumber upTo, Throwable cause)
void	handleMaterializationResult(org.apache.flink.runtime.state.SnapshotResult<org.apache.flink.runtime.state.KeyedStateHandle> materializedSnapshot, long materializationID, org.apache.flink.runtime.state.changelog.SequenceNumber upTo) Implementations should not trigger materialization until the previous one has been confirmed or failed.
Optional<PeriodicMaterializationManager.MaterializationRunnable>	initMaterialization() Initialize state materialization so that materialized data can be persisted durably and included into the checkpoint.

字段详细资料

NO_OP

static final PeriodicMaterializationManager.MaterializationTarget NO_OP

方法详细资料

initMaterialization

Optional<PeriodicMaterializationManager.MaterializationRunnable> initMaterialization()
                                                                              throws Exception

Initialize state materialization so that materialized data can be persisted durably and included into the checkpoint.

返回:

a tuple of - future snapshot result from the underlying state backend - a SequenceNumber identifying the latest change in the changelog

抛出:

Exception

handleMaterializationResult

void handleMaterializationResult(org.apache.flink.runtime.state.SnapshotResult<org.apache.flink.runtime.state.KeyedStateHandle> materializedSnapshot,
                                 long materializationID,
                                 org.apache.flink.runtime.state.changelog.SequenceNumber upTo)
                          throws Exception

Implementations should not trigger materialization until the previous one has been confirmed or failed.

抛出:

Exception

handleMaterializationFailureOrCancellation

void handleMaterializationFailureOrCancellation(long materializationID,
                                                org.apache.flink.runtime.state.changelog.SequenceNumber upTo,
                                                Throwable cause)