org.apache.activemq.artemis.utils.collections

Class ConcurrentAppendOnlyChunkedList<T>

java.lang.Object

org.apache.activemq.artemis.utils.collections.ConcurrentAppendOnlyChunkedList<T>

public final class ConcurrentAppendOnlyChunkedList<T>
extends Object

This collection is a concurrent append-only list that grows in chunks.
It's safe to be used by many threads concurrently and has a max capacity of Integer.MAX_VALUE.

Constructor Summary

Constructors

Constructor and Description
ConcurrentAppendOnlyChunkedList(int chunkSize)

Method Summary

Modifier and Type	Method and Description
void	add(T e) Appends the specified element to the end of this collection.
void	addAll(T[] elements) It appends elements to the collection.
T	get(int index) Returns the element at the specified position in this collection or null if not found.
int	size() It returns the number of elements currently added.
T[]	toArray(java.util.function.IntFunction<T[]> arrayAllocator) Returns an array containing all of the elements in this collection in proper sequence (from first to last element). arrayAllocator will be used to instantiate the array of the correct size with the right runtime type.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConcurrentAppendOnlyChunkedList

public ConcurrentAppendOnlyChunkedList(int chunkSize)

Throws:

IllegalArgumentException - if chunkSize is <0 or not a power of 2

Method Detail

size

public int size()

It returns the number of elements currently added.

addAll

public void addAll(T[] elements)

It appends elements to the collection.

get

public T get(int index)

Returns the element at the specified position in this collection or null if not found.

add

public void add(T e)

Appends the specified element to the end of this collection.

Throws:

NullPointerException - if e is null

toArray

public T[] toArray(java.util.function.IntFunction<T[]> arrayAllocator)

Returns an array containing all of the elements in this collection in proper sequence (from first to last element).
arrayAllocator will be used to instantiate the array of the correct size with the right runtime type.