PriorityQueue (The Adobe Experience Manager SDK 2022.11.9850.20221116T162329Z-220900)

All Known Implementing Classes:

BinaryHeap, SynchronizedPriorityQueue
```
@Deprecated(since="2021-04-30")
public interface PriorityQueue
```
Deprecated.
Replaced by the Buffer interface and implementations in buffer subpackage. Due to be removed in v4.0.

Defines a collection for priority queues, which can insert, peek and pop.
This interface is now replaced by the Buffer interface.

Since:

Commons Collections 1.0

Method Summary

All Methods Instance Methods Abstract Methods Deprecated Methods
Modifier and Type	Method	Description
`void`	`clear()`	Deprecated. Clear all elements from queue.
`void`	`insert(java.lang.Object element)`	Deprecated. Insert an element into queue.
`boolean`	`isEmpty()`	Deprecated. Test if queue is empty.
`java.lang.Object`	`peek()`	Deprecated. Return element on top of heap but don't remove it.
`java.lang.Object`	`pop()`	Deprecated. Return element on top of heap and remove it.

- Method Detail
  - clear
```
void clear()
```
    Deprecated.
    
    Clear all elements from queue.
  - isEmpty
```
boolean isEmpty()
```
    Deprecated.
    
    Test if queue is empty.
    
    Returns:
    
    true if queue is empty else false.
  - insert
```
void insert(java.lang.Object element)
```
    Deprecated.
    
    Insert an element into queue.
    
    Parameters:
    
    element - the element to be inserted
    
    Throws:
    
    java.lang.ClassCastException - if the specified element's type prevents it from being compared to other items in the queue to determine its relative priority.
  - peek
```
java.lang.Object peek()
```
    Deprecated.
    
    Return element on top of heap but don't remove it.
    
    Returns:
    
    the element at top of heap
    
    Throws:
    
    java.util.NoSuchElementException - if isEmpty() == true
  - pop
```
java.lang.Object pop()
```
    Deprecated.
    
    Return element on top of heap and remove it.
    
    Returns:
    
    the element at top of heap
    
    Throws:
    
    java.util.NoSuchElementException - if isEmpty() == true