DisiPriorityQueue (Lucene 9.10.0 core API)

java.lang.Object
- org.apache.lucene.search.DisiPriorityQueue

All Implemented Interfaces:

Iterable<DisiWrapper>
```
public final class DisiPriorityQueue
extends Object
implements Iterable<DisiWrapper>
```
A priority queue of DocIdSetIterators that orders by current doc ID. This specialization is needed over PriorityQueue because the pluggable comparison function makes the rebalancing quite slow.

NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.

Constructor Summary

Constructors
Constructor Description

DisiPriorityQueue(int maxSize)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`DisiWrapper`	`add(DisiWrapper entry)`
`void`	`addAll(DisiWrapper[] entries, int offset, int len)`
`void`	`clear()`	Clear the heap.
`Iterator<DisiWrapper>`	`iterator()`
`DisiWrapper`	`pop()`
`int`	`size()`
`DisiWrapper`	`top()`
`DisiWrapper`	`top2()`	Return the 2nd least value in this heap, or null if the heap contains less than 2 values.
`DisiWrapper`	`topList()`	Get the list of scorers which are on the current doc.
`DisiWrapper`	`updateTop()`

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

Methods inherited from interface java.lang.Iterable
forEach, spliterator

Constructor Detail

DisiPriorityQueue

public DisiPriorityQueue(int maxSize)

Method Detail

size
```
public int size()
```

top
```
public DisiWrapper top()
```

top2
```
public DisiWrapper top2()
```
Return the 2nd least value in this heap, or null if the heap contains less than 2 values.

topList
```
public DisiWrapper topList()
```
Get the list of scorers which are on the current doc.

add

public DisiWrapper add(DisiWrapper entry)

addAll

public void addAll(DisiWrapper[] entries,
                   int offset,
                   int len)

pop
```
public DisiWrapper pop()
```

updateTop
```
public DisiWrapper updateTop()
```

clear
```
public void clear()
```
Clear the heap.

iterator
```
public Iterator<DisiWrapper> iterator()
```
Specified by:

iterator in interface Iterable<DisiWrapper>