Package tigase.util.workqueue

Class PriorityQueueAbstract<E>

java.lang.Object

tigase.util.workqueue.PriorityQueueAbstract<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

Author:

Artur Hefczyc

Field Summary

Fields

Modifier and Type	Field	Description
static final String	NONPRIORITY_QUEUE
static final String	QUEUE_IMPLEMENTATION

Constructor Summary

Constructors

Constructor	Description
PriorityQueueAbstract()

Method Summary

Modifier and Type	Method	Description
static <E> PriorityQueueAbstract<E>	getPriorityQueue(int maxPriority, int maxSize)	Deprecated.
static <E> PriorityQueueAbstract<E>	getPriorityQueue(int maxPriority, int maxSize, Class<? extends PriorityQueueAbstract> queueClass)
abstract void	init(int maxPriority, int maxSize)
abstract boolean	offer(E element, int priority)
abstract void	put(E element, int priority)
abstract void	setMaxSize(int maxSize)
abstract int[]	size()
abstract E	take()
abstract int	totalSize()

Methods inherited from class java.lang.Object

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

Field Details

NONPRIORITY_QUEUE

public static final String NONPRIORITY_QUEUE

See Also:

• Constant Field Values

QUEUE_IMPLEMENTATION

public static final String QUEUE_IMPLEMENTATION

See Also:

• Constant Field Values

Constructor Details

PriorityQueueAbstract

public PriorityQueueAbstract()

Method Details

getPriorityQueue

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

Deprecated.

getPriorityQueue

public static <E> PriorityQueueAbstract<E> getPriorityQueue(int maxPriority,
 int maxSize,
 Class<? extends PriorityQueueAbstract> queueClass)

init

public abstract void init(int maxPriority,
 int maxSize)

offer

public abstract boolean offer(E element,
 int priority)

put

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

Throws:

InterruptedException

setMaxSize

public abstract void setMaxSize(int maxSize)

size

public abstract int[] size()

take

public abstract E take()
                throws InterruptedException

Throws:

InterruptedException

totalSize

public abstract int totalSize()