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

Class PunctuatedWatermarkAssignerWrapper

java.lang.Object

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

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.eventtime.TimestampAssigner<org.apache.flink.table.data.RowData>, org.apache.flink.api.common.functions.Function, org.apache.flink.streaming.api.functions.AssignerWithPunctuatedWatermarks<org.apache.flink.table.data.RowData>

@Internal
public class PunctuatedWatermarkAssignerWrapper
extends Object
implements org.apache.flink.streaming.api.functions.AssignerWithPunctuatedWatermarks<org.apache.flink.table.data.RowData>

Generates periodic watermarks based on a PunctuatedWatermarkAssigner.

See Also:

Serialized Form

Field Summary

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

NO_TIMESTAMP

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and 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

Constructor Detail

PunctuatedWatermarkAssignerWrapper

public PunctuatedWatermarkAssignerWrapper(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 Detail

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.api.functions.AssignerWithPunctuatedWatermarks<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>