org.apache.flink.cdc.runtime.operators.schema.coordinator

类 SchemaRegistry

java.lang.Object

org.apache.flink.cdc.runtime.operators.schema.coordinator.SchemaRegistry

所有已实现的接口:

AutoCloseable, org.apache.flink.api.common.state.CheckpointListener, org.apache.flink.runtime.operators.coordination.CoordinationRequestHandler, org.apache.flink.runtime.operators.coordination.OperatorCoordinator

public class SchemaRegistry
extends Object
implements org.apache.flink.runtime.operators.coordination.OperatorCoordinator, org.apache.flink.runtime.operators.coordination.CoordinationRequestHandler

The implementation of the OperatorCoordinator for the SchemaOperator.

The SchemaRegister provides an event loop style thread model to interact with the Flink runtime. The coordinator ensures that all the state manipulations are made by its event loop thread.

This SchemaRegister is responsible for:

• Apply schema changes when receiving the SchemaChangeRequest from SchemaOperator
• Notify SchemaOperator to continue to push data for the table after receiving FlushSuccessEvent from its registered sink writer

嵌套类概要

从接口继承的嵌套类/接口 org.apache.flink.runtime.operators.coordination.OperatorCoordinator

org.apache.flink.runtime.operators.coordination.OperatorCoordinator.Context, org.apache.flink.runtime.operators.coordination.OperatorCoordinator.Provider, org.apache.flink.runtime.operators.coordination.OperatorCoordinator.SubtaskGateway

字段概要

从接口继承的字段 org.apache.flink.runtime.operators.coordination.OperatorCoordinator

NO_CHECKPOINT

构造器概要

构造器

构造器和说明
SchemaRegistry(String operatorName, org.apache.flink.runtime.operators.coordination.OperatorCoordinator.Context context, ExecutorService executorService, org.apache.flink.cdc.common.sink.MetadataApplier metadataApplier, List<org.apache.flink.cdc.common.route.RouteRule> routes)
SchemaRegistry(String operatorName, org.apache.flink.runtime.operators.coordination.OperatorCoordinator.Context context, ExecutorService coordinatorExecutor, org.apache.flink.cdc.common.sink.MetadataApplier metadataApplier, List<org.apache.flink.cdc.common.route.RouteRule> routes, org.apache.flink.cdc.common.pipeline.SchemaChangeBehavior schemaChangeBehavior)

方法概要

限定符和类型	方法和说明
void	checkpointCoordinator(long checkpointId, CompletableFuture<byte[]> resultFuture)
void	close()
void	executionAttemptFailed(int subtask, int attemptNumber, Throwable throwable)
void	executionAttemptReady(int subtask, int attemptNumber, org.apache.flink.runtime.operators.coordination.OperatorCoordinator.SubtaskGateway subtaskGateway)
void	handleApplyEvolvedSchemaChangeRequest(org.apache.flink.cdc.common.event.SchemaChangeEvent schemaChangeEvent)
void	handleApplyOriginalSchemaChangeEvent(org.apache.flink.cdc.common.event.SchemaChangeEvent schemaChangeEvent)
CompletableFuture<org.apache.flink.runtime.operators.coordination.CoordinationResponse>	handleCoordinationRequest(org.apache.flink.runtime.operators.coordination.CoordinationRequest request)
void	handleEventFromOperator(int subtask, int attemptNumber, org.apache.flink.runtime.operators.coordination.OperatorEvent event)
void	notifyCheckpointComplete(long checkpointId)
void	resetToCheckpoint(long checkpointId, byte[] checkpointData)
void	start()
void	subtaskReset(int subtask, long checkpointId)

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.operators.coordination.OperatorCoordinator

notifyCheckpointAborted

构造器详细资料

SchemaRegistry

public SchemaRegistry(String operatorName,
                      org.apache.flink.runtime.operators.coordination.OperatorCoordinator.Context context,
                      ExecutorService executorService,
                      org.apache.flink.cdc.common.sink.MetadataApplier metadataApplier,
                      List<org.apache.flink.cdc.common.route.RouteRule> routes)

SchemaRegistry

public SchemaRegistry(String operatorName,
                      org.apache.flink.runtime.operators.coordination.OperatorCoordinator.Context context,
                      ExecutorService coordinatorExecutor,
                      org.apache.flink.cdc.common.sink.MetadataApplier metadataApplier,
                      List<org.apache.flink.cdc.common.route.RouteRule> routes,
                      org.apache.flink.cdc.common.pipeline.SchemaChangeBehavior schemaChangeBehavior)

方法详细资料

start

public void start()
           throws Exception

指定者:

start 在接口中 org.apache.flink.runtime.operators.coordination.OperatorCoordinator

抛出:

Exception

close

public void close()
           throws Exception

指定者:

close 在接口中 AutoCloseable

指定者:

close 在接口中 org.apache.flink.runtime.operators.coordination.OperatorCoordinator

抛出:

Exception

handleEventFromOperator

public void handleEventFromOperator(int subtask,
                                    int attemptNumber,
                                    org.apache.flink.runtime.operators.coordination.OperatorEvent event)

指定者:

handleEventFromOperator 在接口中 org.apache.flink.runtime.operators.coordination.OperatorCoordinator

checkpointCoordinator

public void checkpointCoordinator(long checkpointId,
                                  CompletableFuture<byte[]> resultFuture)

指定者:

checkpointCoordinator 在接口中 org.apache.flink.runtime.operators.coordination.OperatorCoordinator

notifyCheckpointComplete

public void notifyCheckpointComplete(long checkpointId)

指定者:

notifyCheckpointComplete 在接口中 org.apache.flink.api.common.state.CheckpointListener

指定者:

notifyCheckpointComplete 在接口中 org.apache.flink.runtime.operators.coordination.OperatorCoordinator

handleCoordinationRequest

public CompletableFuture<org.apache.flink.runtime.operators.coordination.CoordinationResponse> handleCoordinationRequest(org.apache.flink.runtime.operators.coordination.CoordinationRequest request)

指定者:

handleCoordinationRequest 在接口中 org.apache.flink.runtime.operators.coordination.CoordinationRequestHandler

resetToCheckpoint

public void resetToCheckpoint(long checkpointId,
                              @Nullable
                              byte[] checkpointData)
                       throws Exception

指定者:

resetToCheckpoint 在接口中 org.apache.flink.runtime.operators.coordination.OperatorCoordinator

抛出:

Exception

subtaskReset

public void subtaskReset(int subtask,
                         long checkpointId)

指定者:

subtaskReset 在接口中 org.apache.flink.runtime.operators.coordination.OperatorCoordinator

executionAttemptFailed

public void executionAttemptFailed(int subtask,
                                   int attemptNumber,
                                   @Nullable
                                   Throwable throwable)

指定者:

executionAttemptFailed 在接口中 org.apache.flink.runtime.operators.coordination.OperatorCoordinator

executionAttemptReady

public void executionAttemptReady(int subtask,
                                  int attemptNumber,
                                  org.apache.flink.runtime.operators.coordination.OperatorCoordinator.SubtaskGateway subtaskGateway)

指定者:

executionAttemptReady 在接口中 org.apache.flink.runtime.operators.coordination.OperatorCoordinator

handleApplyOriginalSchemaChangeEvent

@VisibleForTesting
public void handleApplyOriginalSchemaChangeEvent(org.apache.flink.cdc.common.event.SchemaChangeEvent schemaChangeEvent)

handleApplyEvolvedSchemaChangeRequest

@VisibleForTesting
public void handleApplyEvolvedSchemaChangeRequest(org.apache.flink.cdc.common.event.SchemaChangeEvent schemaChangeEvent)