it.unimi.dsi.fastutil.ints

Class IntPriorityQueues.SynchronizedPriorityQueue

java.lang.Object

it.unimi.dsi.fastutil.ints.IntPriorityQueues.SynchronizedPriorityQueue

All Implemented Interfaces:

IntPriorityQueue, PriorityQueue<Integer>

Enclosing class:

IntPriorityQueues

public static class IntPriorityQueues.SynchronizedPriorityQueue
extends Object
implements IntPriorityQueue

A synchronized wrapper class for priority queues.

Field Summary

Fields

Modifier and Type	Field and Description
protected IntPriorityQueue	q
static long	serialVersionUID
protected Object	sync

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	IntPriorityQueues.SynchronizedPriorityQueue(IntPriorityQueue q)
protected	IntPriorityQueues.SynchronizedPriorityQueue(IntPriorityQueue q, Object sync)

Method Summary

Methods

Modifier and Type	Method and Description
void	changed() Notifies the queue that the first element has changed (optional operation).
void	clear() Removes all elements from this queue.
IntComparator	comparator() Returns the comparator associated with this sorted set, or null if it uses its elements' natural ordering.
Integer	dequeue() Dequeues the first element from the queue.
int	dequeueInt() Dequeues the first element from the queue.
void	enqueue(int x) Enqueues a new element.
void	enqueue(Integer x) Enqueues a new element.
Integer	first() Returns the first element of the queue.
int	firstInt() Returns the first element of the queue.
boolean	isEmpty() Checks whether the queue is empty.
Integer	last() Returns the last element of the queue, that is, the element the would be dequeued last (optional operation).
int	lastInt() Returns the last element of the queue, that is, the element the would be dequeued last (optional operation).
int	size() Returns the number of elements in this queue.

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

public static final long serialVersionUID

See Also:

Constant Field Values

q

protected final IntPriorityQueue q

sync

protected final Object sync

Constructor Detail

IntPriorityQueues.SynchronizedPriorityQueue

protected IntPriorityQueues.SynchronizedPriorityQueue(IntPriorityQueue q,
                                           Object sync)

IntPriorityQueues.SynchronizedPriorityQueue

protected IntPriorityQueues.SynchronizedPriorityQueue(IntPriorityQueue q)

Method Detail

enqueue

public void enqueue(int x)

Description copied from interface: IntPriorityQueue

Enqueues a new element.

Specified by:

enqueue in interface IntPriorityQueue

Parameters:

x - the element to enqueue.

dequeueInt

public int dequeueInt()

Description copied from interface: IntPriorityQueue

Dequeues the first element from the queue.

Specified by:

dequeueInt in interface IntPriorityQueue

Returns:

the dequeued element.

firstInt

public int firstInt()

Description copied from interface: IntPriorityQueue

Returns the first element of the queue.

Specified by:

firstInt in interface IntPriorityQueue

Returns:

the first element.

lastInt

public int lastInt()

Description copied from interface: IntPriorityQueue

Returns the last element of the queue, that is, the element the would be dequeued last (optional operation).

Specified by:

lastInt in interface IntPriorityQueue

Returns:

the last element.

isEmpty

public boolean isEmpty()

Description copied from interface: PriorityQueue

Checks whether the queue is empty.

Specified by:

isEmpty in interface PriorityQueue<Integer>

Returns:

true if the queue is empty.

size

public int size()

Description copied from interface: PriorityQueue

Returns the number of elements in this queue.

Specified by:

size in interface PriorityQueue<Integer>

Returns:

the number of elements in this queue.

clear

public void clear()

Description copied from interface: PriorityQueue

Removes all elements from this queue.

Specified by:

clear in interface PriorityQueue<Integer>

changed

public void changed()

Description copied from interface: PriorityQueue

Notifies the queue that the first element has changed (optional operation).

Specified by:

changed in interface PriorityQueue<Integer>

comparator

public IntComparator comparator()

Description copied from interface: IntPriorityQueue

Returns the comparator associated with this sorted set, or null if it uses its elements' natural ordering.

Note that this specification strengthens the one given in PriorityQueue.comparator().

Specified by:

comparator in interface IntPriorityQueue

Specified by:

comparator in interface PriorityQueue<Integer>

Returns:

the comparator associated with this sorted set, or null if it uses its elements' natural ordering.

See Also:

PriorityQueue.comparator()

enqueue

public void enqueue(Integer x)

Description copied from interface: PriorityQueue

Enqueues a new element.

Specified by:

enqueue in interface PriorityQueue<Integer>

Parameters:

x - the element to enqueue..

dequeue

public Integer dequeue()

Description copied from interface: PriorityQueue

Dequeues the first element from the queue.

Specified by:

dequeue in interface PriorityQueue<Integer>

Returns:

the dequeued element.

first

public Integer first()

Description copied from interface: PriorityQueue

Returns the first element of the queue.

Specified by:

first in interface PriorityQueue<Integer>

Returns:

the first element.

last

public Integer last()

Description copied from interface: PriorityQueue

Returns the last element of the queue, that is, the element the would be dequeued last (optional operation).

Specified by:

last in interface PriorityQueue<Integer>

Returns:

the last element.