java.util.concurrent.atomic
public class
public class
java.util.concurrent.atomic.AtomicReferenceArray
| java.lang.Object | ||
| java.util.concurrent.atomic.AtomicReferenceArray | Serializable | |
An array of object references 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
| AtomicReferenceArray(int length) | |||||
| Create a new AtomicReferenceArray of given length. | |||||
| AtomicReferenceArray(E[] array) | |||||
| Create a new AtomicReferenceArray with the same length as, and all elements copied from, the given array. | |||||
Public Methods
| final | boolean | compareAndSet(int i, E expect, E update) | |||
| Atomically set the value to the given updated value if the current value == the expected value. | |||||
| final | E | get(int i) | |||
| Get the current value at position i. | |||||
| final | E | getAndSet(int i, E newValue) | |||
| Set the element at position i to the given value and return the old value. | |||||
| final | int | length() | |||
| Returns the length of the array. | |||||
| final | void | set(int i, E 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, E expect, E update) | |||
| Atomically set the value to the given updated value if the current value == the expected value. | |||||
Methods inherited
from class
java.lang.Object
Details
Public Constructors
public AtomicReferenceArray(int length)
Create a new AtomicReferenceArray of given length.
Parameters
| length | the length of the array |
|---|
public AtomicReferenceArray(E[] array)
Create a new AtomicReferenceArray 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 boolean compareAndSet(int i, E expect, E 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 E get(int i)
Get the current value at position i.
Parameters
| i | the index |
|---|
Returns
- the current value
public final E getAndSet(int i, E 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 length()
Returns the length of the array.
Returns
- the length of the array
public final void set(int i, E 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.