tigase.util
Class PriorityQueueAbstract<E>

java.lang.Object
  tigase.util.PriorityQueueAbstract<E>

Type Parameters:

E -

Direct Known Subclasses:

NonpriorityQueue, PriorityQueueRelaxed, PriorityQueueStrict

public abstract class PriorityQueueAbstract<E>
extends Object

Works like a LinkedBlockingQueue using the put() and take() methods but with an additional priority integer parameter. The elemnt returned from take() will honor the priority in such a way that all elements of a lower priority will be returned before any elemens of a higher priority. Modified proposition taken from Noa Resare: http://resare.com/noa/ref/MultiPrioQueue.java

Version:

$Rev: 2996 $

Author:

Artur Hefczyc

Field Summary

static String	NONPRIORITY_QUEUE Field description
static String	QUEUE_IMPLEMENTATION Field description

Constructor Summary

PriorityQueueAbstract()

Method Summary

static <E> PriorityQueueAbstract<E>	getPriorityQueue(int maxPriority, int maxSize) Method description
abstract void	init(int maxPriority, int maxSize) Method description
abstract boolean	offer(E element, int priority) Method description
abstract void	put(E element, int priority) Method description
abstract void	setMaxSize(int maxSize) Method description
abstract int[]	size() Method description
abstract E	take() Method description
abstract int	totalSize() Method description

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NONPRIORITY_QUEUE

public static final String NONPRIORITY_QUEUE

Field description

See Also:

Constant Field Values

QUEUE_IMPLEMENTATION

public static final String QUEUE_IMPLEMENTATION

Field description

See Also:

Constant Field Values

Constructor Detail

PriorityQueueAbstract

public PriorityQueueAbstract()

Method Detail

init

public abstract void init(int maxPriority,
                          int maxSize)

Method description

Parameters:

maxPriority -

maxSize -

offer

public abstract boolean offer(E element,
                              int priority)

Method description

Parameters:

element -

priority -

Returns:

put

public abstract void put(E element,
                         int priority)
                  throws InterruptedException

Method description

Parameters:

element -

priority -

Throws:

InterruptedException

setMaxSize

public abstract void setMaxSize(int maxSize)

Method description

Parameters:

maxSize -

size

public abstract int[] size()

Method description

Returns:

take

public abstract E take()
                throws InterruptedException

Method description

Returns:

Throws:

InterruptedException

totalSize

public abstract int totalSize()

Method description

Returns:

getPriorityQueue

public static <E> PriorityQueueAbstract<E> getPriorityQueue(int maxPriority,
                                                            int maxSize)

Method description

Type Parameters:

E -

Parameters:

maxPriority -

maxSize -

Returns: