it.unimi.dsi.fastutil
Class PriorityQueues.SynchronizedPriorityQueue<K>

java.lang.Object
  extended by it.unimi.dsi.fastutil.PriorityQueues.SynchronizedPriorityQueue<K>
All Implemented Interfaces:
PriorityQueue<K>
Enclosing class:
PriorityQueues

public static class PriorityQueues.SynchronizedPriorityQueue<K>
extends java.lang.Object
implements PriorityQueue<K>

A synchronized wrapper class for priority queues.


Field Summary
static long serialVersionUID
           
 
Method Summary
 void changed()
          Notifies the queue that the first element has changed (optional operation).
 void clear()
          Removes all elements from this queue.
 java.util.Comparator<? super K> comparator()
          Returns the comparator associated with this queue, or null if it uses its elements' natural ordering.
 K dequeue()
          Dequeues the first element from the queue.
 void enqueue(K x)
          Enqueues a new element.
 K first()
          Returns the first element of the queue.
 boolean isEmpty()
          Checks whether the queue is empty.
 K last()
          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
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

serialVersionUID

public static final long serialVersionUID
See Also:
Constant Field Values
Method Detail

enqueue

public void enqueue(K x)
Description copied from interface: PriorityQueue
Enqueues a new element.

Specified by:
enqueue in interface PriorityQueue<K>
Parameters:
x - the element to enqueue..

dequeue

public K dequeue()
Description copied from interface: PriorityQueue
Dequeues the first element from the queue.

Specified by:
dequeue in interface PriorityQueue<K>
Returns:
the dequeued element.

first

public K first()
Description copied from interface: PriorityQueue
Returns the first element of the queue.

Specified by:
first in interface PriorityQueue<K>
Returns:
the first element.

last

public K 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<K>
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<K>
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<K>
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<K>

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<K>

comparator

public java.util.Comparator<? super K> comparator()
Description copied from interface: PriorityQueue
Returns the comparator associated with this queue, or null if it uses its elements' natural ordering.

Specified by:
comparator in interface PriorityQueue<K>
Returns:
the comparator associated with this sorted set, or null if it uses its elements' natural ordering.