StatusWatermarkValve.SubpartitionStatus (Flink : Runtime 2.1.0 API)

java.lang.Object
- org.apache.flink.streaming.runtime.watermarkstatus.StatusWatermarkValve.SubpartitionStatus

All Implemented Interfaces:

HeapPriorityQueue.HeapPriorityQueueElement

Enclosing class:

StatusWatermarkValve
```
@VisibleForTesting
protected static class StatusWatermarkValve.SubpartitionStatus
extends Object
implements HeapPriorityQueue.HeapPriorityQueueElement
```
An SubpartitionStatus keeps track of a subpartition's last watermark, stream status, and whether or not the subpartition's current watermark is aligned with the overall watermark output from the valve.
There are 2 situations where a subpartition's watermark is not considered aligned:
- the current watermark status of the subpartition is idle
- the watermark status has resumed to be active, but the watermark of the subpartition hasn't caught up to the last output watermark from the valve yet.
NOTE: This class implements HeapPriorityQueue.HeapPriorityQueueElement to be managed by StatusWatermarkValve.alignedSubpartitionStatuses to help find minimum watermark.

Field Summary

Fields
Modifier and Type Field Description

protected boolean isWatermarkAligned

protected long watermark

protected WatermarkStatus watermarkStatus
- Fields inherited from interface org.apache.flink.streaming.runtime.watermarkstatus.HeapPriorityQueue.HeapPriorityQueueElement
  NOT_CONTAINED

Constructor Summary

Constructors
Modifier Constructor Description

protected SubpartitionStatus()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`getInternalIndex()`	Returns the current index of this object in the internal array of `HeapPriorityQueue`.
`void`	`setInternalIndex(int newIndex)`	Sets the current index of this object in the `HeapPriorityQueue` and should only be called by the owning `HeapPriorityQueue`.

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

- Field Detail
  - watermark
```
protected long watermark
```
  - watermarkStatus
```
protected WatermarkStatus watermarkStatus
```
  - isWatermarkAligned
```
protected boolean isWatermarkAligned
```
- Constructor Detail
  - SubpartitionStatus
```
protected SubpartitionStatus()
```
- Method Detail
  - getInternalIndex
```
public int getInternalIndex()
```
    Description copied from interface: HeapPriorityQueue.HeapPriorityQueueElement
    
    Returns the current index of this object in the internal array of HeapPriorityQueue.
    
    Specified by:
    
    getInternalIndex in interface HeapPriorityQueue.HeapPriorityQueueElement
  - setInternalIndex
```
public void setInternalIndex(int newIndex)
```
    Description copied from interface: HeapPriorityQueue.HeapPriorityQueueElement
    
    Sets the current index of this object in the HeapPriorityQueue and should only be called by the owning HeapPriorityQueue.
    
    Specified by:
    
    setInternalIndex in interface HeapPriorityQueue.HeapPriorityQueueElement
    
    Parameters:
    
    newIndex - the new index in the timer heap.