org.apache.flink.table.sources.wmstrategies

Class PeriodicWatermarkAssigner

java.lang.Object

org.apache.flink.table.sources.wmstrategies.WatermarkStrategy

org.apache.flink.table.sources.wmstrategies.PeriodicWatermarkAssigner

All Implemented Interfaces:

Serializable, org.apache.flink.table.descriptors.Descriptor

Direct Known Subclasses:

AscendingTimestamps, BoundedOutOfOrderTimestamps

@PublicEvolving
public abstract class PeriodicWatermarkAssigner
extends org.apache.flink.table.sources.wmstrategies.WatermarkStrategy

A periodic watermark assigner.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
PeriodicWatermarkAssigner()

Method Summary

Modifier and Type	Method and Description
abstract org.apache.flink.streaming.api.watermark.Watermark	getWatermark() Returns the current watermark.
abstract void	nextTimestamp(long timestamp) Updates the assigner with the next timestamp.

Methods inherited from class org.apache.flink.table.sources.wmstrategies.WatermarkStrategy

toProperties

Methods inherited from class java.lang.Object

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

Constructor Detail

PeriodicWatermarkAssigner

public PeriodicWatermarkAssigner()

Method Detail

nextTimestamp

public abstract void nextTimestamp(long timestamp)

Updates the assigner with the next timestamp.

Parameters:

timestamp - The next timestamp to update the assigner.

getWatermark

public abstract org.apache.flink.streaming.api.watermark.Watermark getWatermark()

Returns the current watermark.

Returns:

The current watermark.