AscendingTimestamps (Flink : 2.0-SNAPSHOT API)

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

All Implemented Interfaces:

Serializable, Descriptor
```
@PublicEvolving
public final class AscendingTimestamps
extends PeriodicWatermarkAssigner
```
A watermark strategy for ascending rowtime attributes.
Emits a watermark of the maximum observed timestamp so far minus 1. Rows that have a timestamp equal to the max timestamp are not late.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

AscendingTimestamps()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object obj)`
`Watermark`	`getWatermark()`	Returns the current watermark.
`int`	`hashCode()`
`void`	`nextTimestamp(long timestamp)`	Updates the assigner with the next timestamp.
`Map<String,String>`	`toProperties()`	This method is a default implementation that uses java serialization and it is discouraged.

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AscendingTimestamps
```
public AscendingTimestamps()
```
- Method Detail
  - nextTimestamp
```
public void nextTimestamp(long timestamp)
```
    Description copied from class: PeriodicWatermarkAssigner
    
    Updates the assigner with the next timestamp.
    
    Specified by:
    
    nextTimestamp in class PeriodicWatermarkAssigner
    
    Parameters:
    
    timestamp - The next timestamp to update the assigner.
  - toProperties
```
public Map<String,String> toProperties()
```
    Description copied from class: WatermarkStrategy
    
    This method is a default implementation that uses java serialization and it is discouraged. All implementation should provide a more specific set of properties.
    
    Specified by:
    
    toProperties in interface Descriptor
    
    Overrides:
    
    toProperties in class WatermarkStrategy
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object
  - getWatermark
```
public Watermark getWatermark()
```
    Description copied from class: PeriodicWatermarkAssigner
    
    Returns the current watermark.
    
    Specified by:
    
    getWatermark in class PeriodicWatermarkAssigner
    
    Returns:
    
    The current watermark.