Package 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.
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Method Summary
Modifier and TypeMethodDescriptionvoid
changed()
Notifies the queue that the first element has changed (optional operation).void
clear()
Removes all elements from this queue.Returns the comparator associated with this priority queue, or null if it uses its elements' natural ordering.dequeue()
Deprecated.int
Dequeues the first element from the queue.void
enqueue
(int x) Enqueues a new element.void
Deprecated.boolean
first()
Deprecated.int
firstInt()
Returns the first element of the queue.int
hashCode()
boolean
isEmpty()
Checks whether this queue is empty.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.
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Method Details
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enqueue
public void enqueue(int x) Description copied from interface:IntPriorityQueue
Enqueues a new element.- Specified by:
enqueue
in interfaceIntPriorityQueue
- Parameters:
x
- the element to enqueue.- See Also:
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dequeueInt
public int dequeueInt()Description copied from interface:IntPriorityQueue
Dequeues the first element from the queue.- Specified by:
dequeueInt
in interfaceIntPriorityQueue
- Returns:
- the dequeued element.
- See Also:
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firstInt
public int firstInt()Description copied from interface:IntPriorityQueue
Returns the first element of the queue.- Specified by:
firstInt
in interfaceIntPriorityQueue
- Returns:
- the first element.
- See Also:
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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 interfaceIntPriorityQueue
- Returns:
- the last element.
- See Also:
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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 interfacePriorityQueue<Integer>
- Returns:
- true if this queue is empty.
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size
public int size()Description copied from interface:PriorityQueue
Returns the number of elements in this queue.- Specified by:
size
in interfacePriorityQueue<Integer>
- Returns:
- the number of elements in this queue.
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clear
public void clear()Description copied from interface:PriorityQueue
Removes all elements from this queue.- Specified by:
clear
in interfacePriorityQueue<Integer>
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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 interfacePriorityQueue<Integer>
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comparator
Description copied from interface:IntPriorityQueue
Returns the comparator associated with this priority queue, or null if it uses its elements' natural ordering.- Specified by:
comparator
in interfaceIntPriorityQueue
- Specified by:
comparator
in interfacePriorityQueue<Integer>
- Returns:
- the comparator associated with this priority queue.
- See Also:
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enqueue
Deprecated.Description copied from interface:IntPriorityQueue
Enqueues a new element.This default implementation delegates to the corresponding type-specific method.
- Specified by:
enqueue
in interfaceIntPriorityQueue
- Specified by:
enqueue
in interfacePriorityQueue<Integer>
- Parameters:
x
- the element to enqueue.
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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 interfaceIntPriorityQueue
- Specified by:
dequeue
in interfacePriorityQueue<Integer>
- Returns:
- the dequeued element.
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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 interfaceIntPriorityQueue
- Specified by:
first
in interfacePriorityQueue<Integer>
- Returns:
- the first element.
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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 interfaceIntPriorityQueue
- Specified by:
last
in interfacePriorityQueue<Integer>
- Returns:
- the last element.
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hashCode
public int hashCode() -
equals
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