Package io.netty.util.internal

Class EmptyPriorityQueue<T>

java.lang.Object

io.netty.util.internal.EmptyPriorityQueue<T>

All Implemented Interfaces:

PriorityQueue<T>, java.lang.Iterable<T>, java.util.Collection<T>, java.util.Queue<T>

public final class EmptyPriorityQueue<T>
extends java.lang.Object
implements PriorityQueue<T>

Method Summary

Modifier and Type	Method	Description
boolean	add(T t)
boolean	addAll(java.util.Collection<? extends T> c)
void	clear()
void	clearIgnoringIndexes()	Removes all of the elements from this PriorityQueue without calling PriorityQueueNode.priorityQueueIndex(DefaultPriorityQueue) or explicitly removing references to them to allow them to be garbage collected.
boolean	contains(java.lang.Object o)
boolean	containsAll(java.util.Collection<?> c)
boolean	containsTyped(T node)	Same as Collection.contains(Object) but typed using generics.
T	element()
boolean	equals(java.lang.Object o)
int	hashCode()
static <V> EmptyPriorityQueue<V>	instance()	Returns an unmodifiable empty PriorityQueue.
boolean	isEmpty()
java.util.Iterator<T>	iterator()
boolean	offer(T t)
T	peek()
T	poll()
void	priorityChanged(T node)	Notify the queue that the priority for node has changed.
T	remove()
boolean	remove(java.lang.Object o)
boolean	removeAll(java.util.Collection<?> c)
boolean	removeTyped(T node)	Same as Collection.remove(Object) but typed using generics.
boolean	retainAll(java.util.Collection<?> c)
int	size()
java.lang.Object[]	toArray()
<T1> T1[]	toArray(T1[] a)
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

parallelStream, removeIf, spliterator, stream

Methods inherited from interface java.lang.Iterable

forEach

Method Detail

instance

public static <V> EmptyPriorityQueue<V> instance()

Returns an unmodifiable empty PriorityQueue.

removeTyped

public boolean removeTyped(T node)

Description copied from interface: PriorityQueue

Same as Collection.remove(Object) but typed using generics.

Specified by:

removeTyped in interface PriorityQueue<T>

containsTyped

public boolean containsTyped(T node)

Description copied from interface: PriorityQueue

Same as Collection.contains(Object) but typed using generics.

Specified by:

containsTyped in interface PriorityQueue<T>

priorityChanged

public void priorityChanged(T node)

Description copied from interface: PriorityQueue

Notify the queue that the priority for node has changed. The queue will adjust to ensure the priority queue properties are maintained.

Specified by:

priorityChanged in interface PriorityQueue<T>

Parameters:

node - An object which is in this queue and the priority may have changed.

size

public int size()

Specified by:

size in interface java.util.Collection<T>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface java.util.Collection<T>

contains

public boolean contains(java.lang.Object o)

Specified by:

contains in interface java.util.Collection<T>

iterator

public java.util.Iterator<T> iterator()

Specified by:

iterator in interface java.util.Collection<T>

Specified by:

iterator in interface java.lang.Iterable<T>

toArray

public java.lang.Object[] toArray()

Specified by:

toArray in interface java.util.Collection<T>

toArray

public <T1> T1[] toArray(T1[] a)

Specified by:

toArray in interface java.util.Collection<T>

add

public boolean add(T t)

Specified by:

add in interface java.util.Collection<T>

Specified by:

add in interface java.util.Queue<T>

remove

public boolean remove(java.lang.Object o)

Specified by:

remove in interface java.util.Collection<T>

containsAll

public boolean containsAll(java.util.Collection<?> c)

Specified by:

containsAll in interface java.util.Collection<T>

addAll

public boolean addAll(java.util.Collection<? extends T> c)

Specified by:

addAll in interface java.util.Collection<T>

removeAll

public boolean removeAll(java.util.Collection<?> c)

Specified by:

removeAll in interface java.util.Collection<T>

retainAll

public boolean retainAll(java.util.Collection<?> c)

Specified by:

retainAll in interface java.util.Collection<T>

clear

public void clear()

Specified by:

clear in interface java.util.Collection<T>

clearIgnoringIndexes

public void clearIgnoringIndexes()

Description copied from interface: PriorityQueue

Removes all of the elements from this PriorityQueue without calling PriorityQueueNode.priorityQueueIndex(DefaultPriorityQueue) or explicitly removing references to them to allow them to be garbage collected. This should only be used when it is certain that the nodes will not be re-inserted into this or any other PriorityQueue and it is known that the PriorityQueue itself will be garbage collected after this call.

Specified by:

clearIgnoringIndexes in interface PriorityQueue<T>

equals

public boolean equals(java.lang.Object o)

Specified by:

equals in interface java.util.Collection<T>

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Specified by:

hashCode in interface java.util.Collection<T>

Overrides:

hashCode in class java.lang.Object

offer

public boolean offer(T t)

Specified by:

offer in interface java.util.Queue<T>

remove

public T remove()

Specified by:

remove in interface java.util.Queue<T>

poll

public T poll()

Specified by:

poll in interface java.util.Queue<T>

element

public T element()

Specified by:

element in interface java.util.Queue<T>

peek

public T peek()

Specified by:

peek in interface java.util.Queue<T>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object