org.apache.flink.table.runtime.operators.wmassigners

类 WatermarkAssignerOperator

java.lang.Object

org.apache.flink.streaming.api.operators.AbstractStreamOperator<BaseRow>

org.apache.flink.table.runtime.operators.wmassigners.WatermarkAssignerOperator

所有已实现的接口:

Serializable, org.apache.flink.runtime.state.CheckpointListener, org.apache.flink.streaming.api.operators.KeyContext, org.apache.flink.streaming.api.operators.OneInputStreamOperator<BaseRow,BaseRow>, org.apache.flink.streaming.api.operators.SetupableStreamOperator<BaseRow>, org.apache.flink.streaming.api.operators.StreamOperator<BaseRow>, org.apache.flink.streaming.runtime.tasks.ProcessingTimeCallback, org.apache.flink.util.Disposable

public class WatermarkAssignerOperator
extends org.apache.flink.streaming.api.operators.AbstractStreamOperator<BaseRow>
implements org.apache.flink.streaming.api.operators.OneInputStreamOperator<BaseRow,BaseRow>, org.apache.flink.streaming.runtime.tasks.ProcessingTimeCallback

A stream operator that extracts timestamps from stream elements and generates periodic watermarks.

另请参阅:

序列化表格

嵌套类概要

从类继承的嵌套类/接口 org.apache.flink.streaming.api.operators.AbstractStreamOperator

org.apache.flink.streaming.api.operators.AbstractStreamOperator.CountingOutput<OUT>

字段概要

从类继承的字段 org.apache.flink.streaming.api.operators.AbstractStreamOperator

chainingStrategy, config, latencyStats, LOG, metrics, output, timeServiceManager

构造器概要

构造器

构造器和说明
WatermarkAssignerOperator(int rowtimeFieldIndex, WatermarkGenerator watermarkGenerator, long idleTimeout) Create a watermark assigner operator.

方法概要

限定符和类型	方法和说明
void	close()
void	dispose()
void	onProcessingTime(long timestamp)
void	open()
void	processElement(org.apache.flink.streaming.runtime.streamrecord.StreamRecord<BaseRow> element)
void	processWatermark(org.apache.flink.streaming.api.watermark.Watermark mark) Override the base implementation to completely ignore watermarks propagated from upstream (we rely only on the WatermarkGenerator to emit watermarks from here).

从类继承的方法 org.apache.flink.streaming.api.operators.AbstractStreamOperator

getChainingStrategy, getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getUserCodeClassloader, initializeState, initializeState, notifyCheckpointComplete, numEventTimeTimers, numProcessingTimeTimers, prepareSnapshotPreBarrier, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processWatermark1, processWatermark2, reportOrForwardLatencyMarker, setChainingStrategy, setCurrentKey, setKeyContextElement1, setKeyContextElement2, setup, snapshotState, snapshotState

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.streaming.api.operators.OneInputStreamOperator

processLatencyMarker

从接口继承的方法 org.apache.flink.streaming.api.operators.StreamOperator

getChainingStrategy, getMetricGroup, getOperatorID, initializeState, prepareSnapshotPreBarrier, setChainingStrategy, setKeyContextElement1, setKeyContextElement2, snapshotState

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

notifyCheckpointComplete

从接口继承的方法 org.apache.flink.streaming.api.operators.KeyContext

getCurrentKey, setCurrentKey

构造器详细资料

WatermarkAssignerOperator

public WatermarkAssignerOperator(int rowtimeFieldIndex,
                                 WatermarkGenerator watermarkGenerator,
                                 long idleTimeout)

Create a watermark assigner operator.

参数:

rowtimeFieldIndex - the field index to extract event timestamp

watermarkGenerator - the watermark generator

idleTimeout - (idleness checking timeout)

方法详细资料

open

public void open()
          throws Exception

指定者:

open 在接口中 org.apache.flink.streaming.api.operators.StreamOperator<BaseRow>

覆盖:

open 在类中 org.apache.flink.streaming.api.operators.AbstractStreamOperator<BaseRow>

抛出:

Exception

processElement

public void processElement(org.apache.flink.streaming.runtime.streamrecord.StreamRecord<BaseRow> element)
                    throws Exception

指定者:

processElement 在接口中 org.apache.flink.streaming.api.operators.OneInputStreamOperator<BaseRow,BaseRow>

抛出:

Exception

onProcessingTime

public void onProcessingTime(long timestamp)
                      throws Exception

指定者:

onProcessingTime 在接口中 org.apache.flink.streaming.runtime.tasks.ProcessingTimeCallback

抛出:

Exception

processWatermark

public void processWatermark(org.apache.flink.streaming.api.watermark.Watermark mark)
                      throws Exception

Override the base implementation to completely ignore watermarks propagated from upstream (we rely only on the WatermarkGenerator to emit watermarks from here).

指定者:

processWatermark 在接口中 org.apache.flink.streaming.api.operators.OneInputStreamOperator<BaseRow,BaseRow>

覆盖:

processWatermark 在类中 org.apache.flink.streaming.api.operators.AbstractStreamOperator<BaseRow>

抛出:

Exception

close

public void close()
           throws Exception

指定者:

close 在接口中 org.apache.flink.streaming.api.operators.StreamOperator<BaseRow>

覆盖:

close 在类中 org.apache.flink.streaming.api.operators.AbstractStreamOperator<BaseRow>

抛出:

Exception

dispose

public void dispose()
             throws Exception

指定者:

dispose 在接口中 org.apache.flink.streaming.api.operators.StreamOperator<BaseRow>

指定者:

dispose 在接口中 org.apache.flink.util.Disposable

覆盖:

dispose 在类中 org.apache.flink.streaming.api.operators.AbstractStreamOperator<BaseRow>

抛出:

Exception