public class

AtomicIntegerArray

extends Object
implements Serializable
java.lang.Object
   ↳ java.util.concurrent.atomic.AtomicIntegerArray

Class Overview

An int array in which elements may be updated atomically. See the java.util.concurrent.atomic package specification for description of the properties of atomic variables.

Summary

Public Constructors
AtomicIntegerArray(int length)
Create a new AtomicIntegerArray of given length.
AtomicIntegerArray(int[] array)
Create a new AtomicIntegerArray with the same length as, and all elements copied from, the given array.
Public Methods
final int addAndGet(int i, int delta)
Atomically add the given value to element at index i.
final boolean compareAndSet(int i, int expect, int update)
Atomically set the value to the given updated value if the current value == the expected value.
final int decrementAndGet(int i)
Atomically decrement by one the element at index i.
final int get(int i)
Get the current value at position i.
final int getAndAdd(int i, int delta)
Atomically add the given value to element at index i.
final int getAndDecrement(int i)
Atomically decrement by one the element at index i.
final int getAndIncrement(int i)
Atomically increment by one the element at index i.
final int getAndSet(int i, int newValue)
Set the element at position i to the given value and return the old value.
final int incrementAndGet(int i)
Atomically increment by one the element at index i.
final int length()
Returns the length of the array.
final void set(int i, int newValue)
Set the element at position i to the given value.
String toString()
Returns the String representation of the current values of array.
final boolean weakCompareAndSet(int i, int expect, int update)
Atomically set the value to the given updated value if the current value == the expected value.
[Expand]
Inherited Methods
From class java.lang.Object

Public Constructors

public AtomicIntegerArray (int length)

Create a new AtomicIntegerArray of given length.

Parameters
length the length of the array

public AtomicIntegerArray (int[] array)

Create a new AtomicIntegerArray with the same length as, and all elements copied from, the given array.

Parameters
array the array to copy elements from
Throws
NullPointerException if array is null

Public Methods

public final int addAndGet (int i, int delta)

Atomically add the given value to element at index i.

Parameters
i the index
delta the value to add
Returns
  • the updated value;

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

Atomically set the value to the given updated value if the current value == the expected value.

Parameters
i the index
expect the expected value
update the new value
Returns
  • true if successful. False return indicates that the actual value was not equal to the expected value.

public final int decrementAndGet (int i)

Atomically decrement by one the element at index i.

Parameters
i the index
Returns
  • the updated value;

public final int get (int i)

Get the current value at position i.

Parameters
i the index
Returns
  • the current value

public final int getAndAdd (int i, int delta)

Atomically add the given value to element at index i.

Parameters
i the index
delta the value to add
Returns
  • the previous value;

public final int getAndDecrement (int i)

Atomically decrement by one the element at index i.

Parameters
i the index
Returns
  • the previous value;

public final int getAndIncrement (int i)

Atomically increment by one the element at index i.

Parameters
i the index
Returns
  • the previous value;

public final int getAndSet (int i, int newValue)

Set the element at position i to the given value and return the old value.

Parameters
i the index
newValue the new value
Returns
  • the previous value

public final int incrementAndGet (int i)

Atomically increment by one the element at index i.

Parameters
i the index
Returns
  • the updated value;

public final int length ()

Returns the length of the array.

Returns
  • the length of the array

public final void set (int i, int newValue)

Set the element at position i to the given value.

Parameters
i the index
newValue the new value

public String toString ()

Returns the String representation of the current values of array.

Returns
  • the String representation of the current values of array.

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

Atomically set the value to the given updated value if the current value == the expected value. May fail spuriously.

Parameters
i the index
expect the expected value
update the new value
Returns
  • true if successful.