it.unimi.dsi.fastutil.longs

Class LongPriorityQueues.SynchronizedPriorityQueue

java.lang.Object

it.unimi.dsi.fastutil.longs.LongPriorityQueues.SynchronizedPriorityQueue

All Implemented Interfaces:

LongPriorityQueue, PriorityQueue<java.lang.Long>

Enclosing class:

LongPriorityQueues

public static class LongPriorityQueues.SynchronizedPriorityQueue
extends java.lang.Object
implements LongPriorityQueue

A synchronized wrapper class for priority queues.

Method Summary

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.
LongComparator	comparator() Returns the comparator associated with this priority queue, or null if it uses its elements' natural ordering.
java.lang.Long	dequeue() Deprecated.
long	dequeueLong() Dequeues the first element from the queue.
void	enqueue(long x) Enqueues a new element.
void	enqueue(java.lang.Long x) Deprecated.
boolean	equals(java.lang.Object o)
java.lang.Long	first() Deprecated.
long	firstLong() Returns the first element of the queue.
int	hashCode()
boolean	isEmpty() Checks whether this queue is empty.
java.lang.Long	last() Deprecated.
long	lastLong() 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(long x)

Description copied from interface: LongPriorityQueue

Enqueues a new element.

Specified by:

enqueue in interface LongPriorityQueue

Parameters:

x - the element to enqueue.

See Also:

PriorityQueue.enqueue(Object)

dequeueLong

public long dequeueLong()

Description copied from interface: LongPriorityQueue

Dequeues the first element from the queue.

Specified by:

dequeueLong in interface LongPriorityQueue

Returns:

the dequeued element.

See Also:

LongPriorityQueue.dequeue()

firstLong

public long firstLong()

Description copied from interface: LongPriorityQueue

Returns the first element of the queue.

Specified by:

firstLong in interface LongPriorityQueue

Returns:

the first element.

See Also:

LongPriorityQueue.first()

lastLong

public long lastLong()

Description copied from interface: LongPriorityQueue

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:

lastLong in interface LongPriorityQueue

Returns:

the last element.

See Also:

LongPriorityQueue.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.Long>

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.Long>

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.Long>

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.Long>

comparator

public LongComparator comparator()

Description copied from interface: LongPriorityQueue

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 LongPriorityQueue

Specified by:

comparator in interface PriorityQueue<java.lang.Long>

Returns:

the comparator associated with this priority queue.

See Also:

PriorityQueue.comparator()

enqueue

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

Deprecated.

Description copied from interface: LongPriorityQueue

Enqueues a new element.

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

Specified by:

enqueue in interface LongPriorityQueue

Specified by:

enqueue in interface PriorityQueue<java.lang.Long>

Parameters:

x - the element to enqueue.

dequeue

@Deprecated
public java.lang.Long dequeue()

Deprecated.

Description copied from interface: LongPriorityQueue

Dequeues the first element from the queue.

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

Specified by:

dequeue in interface LongPriorityQueue

Specified by:

dequeue in interface PriorityQueue<java.lang.Long>

Returns:

the dequeued element.

first

@Deprecated
public java.lang.Long first()

Deprecated.

Description copied from interface: LongPriorityQueue

Returns the first element of the queue.

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

Specified by:

first in interface LongPriorityQueue

Specified by:

first in interface PriorityQueue<java.lang.Long>

Returns:

the first element.

last

@Deprecated
public java.lang.Long last()

Deprecated.

Description copied from interface: LongPriorityQueue

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 LongPriorityQueue

Specified by:

last in interface PriorityQueue<java.lang.Long>

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