Package org.apache.commons.collections

Class SynchronizedPriorityQueue

java.lang.Object

org.apache.commons.collections.SynchronizedPriorityQueue

All Implemented Interfaces:

PriorityQueue

@Deprecated(since="2021-04-30")
public final class SynchronizedPriorityQueue
extends Object
implements PriorityQueue

Deprecated.

PriorityQueue is replaced by the Buffer interface, see buffer subpackage. Due to be removed in v4.0.

A thread safe version of the PriorityQueue. Provides synchronized wrapper methods for all the methods defined in the PriorityQueue interface.

Since:

Commons Collections 1.0

Constructor Summary

Constructors

Constructor	Description
SynchronizedPriorityQueue(PriorityQueue priorityQueue)	Deprecated. Constructs a new synchronized priority queue.

Method Summary

Modifier and Type	Method	Description
void	clear()	Deprecated. Clear all elements from queue.
void	insert(Object element)	Deprecated. Insert an element into queue.
boolean	isEmpty()	Deprecated. Test if queue is empty.
Object	peek()	Deprecated. Return element on top of heap but don't remove it.
Object	pop()	Deprecated. Return element on top of heap and remove it.
String	toString()	Deprecated. Returns a string representation of the underlying queue.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

SynchronizedPriorityQueue

public SynchronizedPriorityQueue(PriorityQueue priorityQueue)

Deprecated.

Constructs a new synchronized priority queue.

Parameters:

priorityQueue - the priority queue to synchronize

Method Detail

clear

public void clear()

Deprecated.

Clear all elements from queue.

Specified by:

clear in interface PriorityQueue

isEmpty

public boolean isEmpty()

Deprecated.

Test if queue is empty.

Specified by:

isEmpty in interface PriorityQueue

Returns:

true if queue is empty else false.

insert

public void insert(Object element)

Deprecated.

Insert an element into queue.

Specified by:

insert in interface PriorityQueue

Parameters:

element - the element to be inserted

peek

public Object peek()
            throws NoSuchElementException

Deprecated.

Return element on top of heap but don't remove it.

Specified by:

peek in interface PriorityQueue

Returns:

the element at top of heap

Throws:

NoSuchElementException - if isEmpty() == true

pop

public Object pop()
           throws NoSuchElementException

Deprecated.

Return element on top of heap and remove it.

Specified by:

pop in interface PriorityQueue

Returns:

the element at top of heap

Throws:

NoSuchElementException - if isEmpty() == true

toString

public String toString()

Deprecated.

Returns a string representation of the underlying queue.

Overrides:

toString in class Object

Returns:

a string representation of the underlying queue