Package it.unimi.dsi.fastutil.ints

Class IntPriorityQueues.SynchronizedPriorityQueue

java.lang.Object

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

All Implemented Interfaces:

IntPriorityQueue, PriorityQueue<java.lang.Integer>

Enclosing class:

IntPriorityQueues

public static class IntPriorityQueues.SynchronizedPriorityQueue
extends java.lang.Object
implements IntPriorityQueue

A synchronized wrapper class for priority queues.

Method Summary

Modifier and Type	Method	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 priority queue, or null if it uses its elements' natural ordering.
java.lang.Integer	dequeue()	Deprecated.
int	dequeueInt()	Dequeues the first element from the queue.
void	enqueue(int x)	Enqueues a new element.
void	enqueue(java.lang.Integer x)	Deprecated.
boolean	equals(java.lang.Object o)
java.lang.Integer	first()	Deprecated.
int	firstInt()	Returns the first element of the queue.
int	hashCode()
boolean	isEmpty()	Checks whether this queue is empty.
java.lang.Integer	last()	Deprecated.
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

getClass, notify, notifyAll, toString, wait, wait, wait

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.

See Also:

PriorityQueue.enqueue(Object)

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.

See Also:

IntPriorityQueue.dequeue()

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.

See Also:

IntPriorityQueue.first()

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).

This default implementation just throws an UnsupportedOperationException.

Specified by:

lastInt in interface IntPriorityQueue

Returns:

the last element.

See Also:

IntPriorityQueue.last()

isEmpty

public boolean isEmpty()

Description copied from interface: PriorityQueue

Checks whether this queue is empty.

This default implementation checks whether PriorityQueue.size() is zero.

Specified by:

isEmpty in interface PriorityQueue<java.lang.Integer>

Returns:

true if this 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<java.lang.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<java.lang.Integer>

changed

public void changed()

Description copied from interface: PriorityQueue

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

This default implementation just throws an UnsupportedOperationException.

Specified by:

changed in interface PriorityQueue<java.lang.Integer>

comparator

public IntComparator comparator()

Description copied from interface: IntPriorityQueue

Returns the comparator associated with this priority queue, 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<java.lang.Integer>

Returns:

the comparator associated with this priority queue.

See Also:

PriorityQueue.comparator()

enqueue

@Deprecated
public void enqueue(java.lang.Integer x)

Deprecated.

Description copied from interface: IntPriorityQueue

Enqueues a new element.

This default implementation delegates to the corresponding type-specific method.

Specified by:

enqueue in interface IntPriorityQueue

Specified by:

enqueue in interface PriorityQueue<java.lang.Integer>

Parameters:

x - the element to enqueue.

dequeue

@Deprecated
public java.lang.Integer dequeue()

Deprecated.

Description copied from interface: IntPriorityQueue

Dequeues the first element from the queue.

This default implementation delegates to the corresponding type-specific method.

Specified by:

dequeue in interface IntPriorityQueue

Specified by:

dequeue in interface PriorityQueue<java.lang.Integer>

Returns:

the dequeued element.

first

@Deprecated
public java.lang.Integer first()

Deprecated.

Description copied from interface: IntPriorityQueue

Returns the first element of the queue.

This default implementation delegates to the corresponding type-specific method.

Specified by:

first in interface IntPriorityQueue

Specified by:

first in interface PriorityQueue<java.lang.Integer>

Returns:

the first element.

last

@Deprecated
public java.lang.Integer last()

Deprecated.

Description copied from interface: IntPriorityQueue

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

This default implementation just throws an UnsupportedOperationException.

This default implementation delegates to the corresponding type-specific method.

Specified by:

last in interface IntPriorityQueue

Specified by:

last in interface PriorityQueue<java.lang.Integer>

Returns:

the last element.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object