PeriodicWatermarkAssigner (Flink : 2.0-preview1 API)

java.lang.Object
- org.apache.flink.table.sources.wmstrategies.WatermarkStrategy
- - org.apache.flink.table.sources.wmstrategies.PeriodicWatermarkAssigner

All Implemented Interfaces:

Serializable, Descriptor

Direct Known Subclasses:

AscendingTimestamps, BoundedOutOfOrderTimestamps
```
@PublicEvolving
public abstract class PeriodicWatermarkAssigner
extends WatermarkStrategy
```
A periodic watermark assigner.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

PeriodicWatermarkAssigner()

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`abstract 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 Watermark getWatermark()
```
    Returns the current watermark.
    
    Returns:
    
    The current watermark.