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

Class PunctuatedWatermarkStrategyWrapper

java.lang.Object

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

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.eventtime.TimestampAssigner<org.apache.flink.table.data.RowData>, org.apache.flink.api.common.eventtime.TimestampAssignerSupplier<org.apache.flink.table.data.RowData>, org.apache.flink.api.common.eventtime.WatermarkGeneratorSupplier<org.apache.flink.table.data.RowData>, org.apache.flink.api.common.eventtime.WatermarkStrategy<org.apache.flink.table.data.RowData>, org.apache.flink.streaming.runtime.operators.util.WatermarkStrategyWithPunctuatedWatermarks<org.apache.flink.table.data.RowData>

@Internal
public class PunctuatedWatermarkStrategyWrapper
extends Object
implements org.apache.flink.streaming.runtime.operators.util.WatermarkStrategyWithPunctuatedWatermarks<org.apache.flink.table.data.RowData>

Generates periodic watermarks based on a PunctuatedWatermarkAssigner.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.api.common.eventtime.TimestampAssignerSupplier

org.apache.flink.api.common.eventtime.TimestampAssignerSupplier.Context, org.apache.flink.api.common.eventtime.TimestampAssignerSupplier.SupplierFromSerializableTimestampAssigner<T extends Object>

Nested classes/interfaces inherited from interface org.apache.flink.api.common.eventtime.WatermarkGeneratorSupplier

org.apache.flink.api.common.eventtime.WatermarkGeneratorSupplier.Context

Field Summary

Fields inherited from interface org.apache.flink.api.common.eventtime.TimestampAssigner

NO_TIMESTAMP

Constructor Summary

Constructors

Constructor	Description
PunctuatedWatermarkStrategyWrapper(org.apache.flink.table.sources.wmstrategies.PunctuatedWatermarkAssigner assigner, int timeFieldIdx, org.apache.flink.table.types.DataType sourceType)

Method Summary

Modifier and Type	Method	Description
org.apache.flink.streaming.api.watermark.Watermark	checkAndGetNextWatermark(org.apache.flink.table.data.RowData row, long extractedTimestamp)
long	extractTimestamp(org.apache.flink.table.data.RowData element, long recordTimestamp)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.api.common.eventtime.WatermarkStrategy

getAlignmentParameters, withIdleness, withTimestampAssigner, withTimestampAssigner, withWatermarkAlignment, withWatermarkAlignment

Methods inherited from interface org.apache.flink.streaming.runtime.operators.util.WatermarkStrategyWithPunctuatedWatermarks

createTimestampAssigner, createWatermarkGenerator

Constructor Details

PunctuatedWatermarkStrategyWrapper

public PunctuatedWatermarkStrategyWrapper(org.apache.flink.table.sources.wmstrategies.PunctuatedWatermarkAssigner assigner,
 int timeFieldIdx,
 org.apache.flink.table.types.DataType sourceType)

Parameters:

timeFieldIdx - the index of the rowtime attribute.

assigner - the watermark assigner.

sourceType - the type of source

Method Details

checkAndGetNextWatermark

@Nullable
public org.apache.flink.streaming.api.watermark.Watermark checkAndGetNextWatermark(org.apache.flink.table.data.RowData row,
 long extractedTimestamp)

Specified by:

checkAndGetNextWatermark in interface org.apache.flink.streaming.runtime.operators.util.WatermarkStrategyWithPunctuatedWatermarks<org.apache.flink.table.data.RowData>

extractTimestamp

public long extractTimestamp(org.apache.flink.table.data.RowData element,
 long recordTimestamp)

Specified by:

extractTimestamp in interface org.apache.flink.api.common.eventtime.TimestampAssigner<org.apache.flink.table.data.RowData>