org.elasticsearch.common.util.concurrent

Class AtomicArray<E>

java.lang.Object

org.elasticsearch.common.util.concurrent.AtomicArray<E>

public class AtomicArray<E>
extends Object

A list backed by an AtomicReferenceArray with potential null values, easily allowing to get the concrete values as a list using asList().

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AtomicArray.Entry<E> An entry within the array.

Constructor Summary

Constructors

Constructor and Description
AtomicArray(int size)

Method Summary

Modifier and Type	Method and Description
List<AtomicArray.Entry<E>>	asList() Returns the it as a non null list, with an Entry wrapping each value allowing to retain its index.
static <E> E	empty()
E	get(int i) Gets the current value at position i.
int	length() The size of the expected results, including potential null values.
void	set(int i, E value) Sets the element at position i to the given value.
void	setOnce(int i, E value)
E[]	toArray(E[] a) Copies the content of the underlying atomic array to a normal one.

Methods inherited from class java.lang.Object

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

Constructor Detail

AtomicArray

public AtomicArray(int size)

Method Detail

empty

public static <E> E empty()

length

public int length()

The size of the expected results, including potential null values.

set

public void set(int i,
                E value)

Sets the element at position i to the given value.

Parameters:

i - the index

value - the new value

setOnce

public final void setOnce(int i,
                          E value)

get

public E get(int i)

Gets the current value at position i.

Parameters:

i - the index

Returns:

the current value

asList

public List<AtomicArray.Entry<E>> asList()

Returns the it as a non null list, with an Entry wrapping each value allowing to retain its index.

toArray

public E[] toArray(E[] a)

Copies the content of the underlying atomic array to a normal one.