Package dev.gmitch215.bytebox.locks

Class AtomicReferenceArray<E>

java.lang.Object

dev.gmitch215.bytebox.locks.AtomicReferenceArray<E>

Type Parameters:

E - the element type

public class AtomicReferenceArray<E>
extends Object

java.util.concurrent.atomic.AtomicReferenceArray, which the class library does not carry even though it carries AtomicReference.

One fiber runs at a time and none of these operations suspends, so each is already indivisible and no lock is needed to make it so.

Since:

1.0.2

Constructor Summary

Constructors

Constructor	Description
AtomicReferenceArray(int length)
AtomicReferenceArray(E[] array)

Method Summary

Modifier and Type	Method	Description
final boolean	compareAndSet(int i, E expect, E update)
final E	get(int i)
final E	getAndSet(int i, E newValue)
final void	lazySet(int i, E newValue)
final int	length()	Returns how many elements.
final void	set(int i, E newValue)
String	toString()
final boolean	weakCompareAndSet(int i, E expect, E update)

Methods inherited from class java.lang.Object

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

Constructor Details

AtomicReferenceArray

public AtomicReferenceArray(int length)

Parameters:

length - how many elements, each starting null

AtomicReferenceArray

public AtomicReferenceArray(E[] array)

Parameters:

array - the elements to copy

Method Details

length

public final int length()

Returns how many elements.

Returns:

how many elements

get

public final E get(int i)

Parameters:

i - the index

Returns:

the element

set

public final void set(int i,
 E newValue)

Parameters:

i - the index

newValue - the element to store

lazySet

public final void lazySet(int i,
 E newValue)

Parameters:

i - the index

newValue - the element to store

getAndSet

public final E getAndSet(int i,
 E newValue)

Parameters:

i - the index

newValue - the element to store

Returns:

the element that was there

compareAndSet

public final boolean compareAndSet(int i,
 E expect,
 E update)

Parameters:

i - the index

expect - the element that must be there

update - the element to store

Returns:

whether it was stored

weakCompareAndSet

public final boolean weakCompareAndSet(int i,
 E expect,
 E update)

Parameters:

i - the index

expect - the element that must be there

update - the element to store

Returns:

whether it was stored

toString

public String toString()

Overrides:

toString in class Object