HeapPriorityQueueElement (Flink : 2.0-SNAPSHOT API)

All Known Implementing Classes:

AbstractHeapPriorityQueueElement, ForStDBCachingPriorityQueueSet, RocksDBCachingPriorityQueueSet, SourceCoordinator.WatermarkElement, TimerHeapInternalTimer
```
@Internal
public interface HeapPriorityQueueElement
```
Interface for objects that can be managed by a HeapPriorityQueue. Such an object can only be contained in at most one HeapPriorityQueue at a time.

Field Summary

Fields
Modifier and Type Field Description

static int NOT_CONTAINED
The index that indicates that a HeapPriorityQueueElement object is not contained in and managed by any HeapPriorityQueue.

Method Summary

All Methods Instance Methods Abstract 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`.

- Field Detail
  - NOT_CONTAINED
```
static final int NOT_CONTAINED
```
    The index that indicates that a HeapPriorityQueueElement object is not contained in and managed by any HeapPriorityQueue. We do not strictly enforce that internal indexes must be reset to this value when elements are removed from a HeapPriorityQueue.
    
    See Also:
    
    Constant Field Values
- Method Detail
  - getInternalIndex
```
int getInternalIndex()
```
    Returns the current index of this object in the internal array of HeapPriorityQueue.
  - setInternalIndex
```
void setInternalIndex(int newIndex)
```
    Sets the current index of this object in the HeapPriorityQueue and should only be called by the owning HeapPriorityQueue.
    
    Parameters:
    
    newIndex - the new index in the timer heap.