org.mapdb

Class Queues.CircularQueue<E>

java.lang.Object

org.mapdb.Queues.SimpleQueue<E>

org.mapdb.Queues.CircularQueue<E>

All Implemented Interfaces:

Iterable<E>, Collection<E>, BlockingQueue<E>, Queue<E>

Enclosing class:

Queues

public static class Queues.CircularQueue<E>
extends Queues.SimpleQueue<E>

Nested Class Summary

Nested classes/interfaces inherited from class org.mapdb.Queues.SimpleQueue

Queues.SimpleQueue.Node<E>, Queues.SimpleQueue.NodeSerializer<E>

Field Summary

Fields

Modifier and Type	Field and Description
protected Atomic.Long	headInsert
protected Lock	lock
protected long	size

Fields inherited from class org.mapdb.Queues.SimpleQueue

engine, head, nodeSerializer, serializer, TICK

Constructor Summary

Constructors

Constructor and Description
Queues.CircularQueue(Engine engine, Serializer<E> serializer, long headRecid, long headInsertRecid, long size)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	add(Object o)
void	clear()
boolean	isEmpty()
E	peek()
E	poll()

Methods inherited from class org.mapdb.Queues.SimpleQueue

addAll, close, contains, containsAll, drainTo, drainTo, element, iterator, offer, offer, poll, put, remainingCapacity, remove, remove, removeAll, retainAll, size, take, toArray, toArray

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Collection

equals, hashCode

Field Detail

headInsert

protected final Atomic.Long headInsert

lock

protected final Lock lock

size

protected final long size

Constructor Detail

Queues.CircularQueue

public Queues.CircularQueue(Engine engine,
                    Serializer<E> serializer,
                    long headRecid,
                    long headInsertRecid,
                    long size)

Method Detail

add

public boolean add(Object o)

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Collection<E>

Overrides:

isEmpty in class Queues.SimpleQueue<E>

clear

public void clear()

Specified by:

clear in interface Collection<E>

Overrides:

clear in class Queues.SimpleQueue<E>

poll

public E poll()

Specified by:

poll in interface Queue<E>

Overrides:

poll in class Queues.SimpleQueue<E>

peek

public E peek()

Specified by:

peek in interface Queue<E>

Overrides:

peek in class Queues.SimpleQueue<E>