Class Overview
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 |
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AtomicReferenceArray(int length)
Create a new AtomicReferenceArray of given length.
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AtomicReferenceArray(E[] array)
Create a new AtomicReferenceArray with the same length as, and
all elements copied from, the given array.
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| Public Methods |
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final
boolean
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compareAndSet(int i, E expect, E update)
Atomically set the value to the given updated value
if the current value == the expected value.
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final
E
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get(int i)
Get the current value at position i.
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final
E
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getAndSet(int i, E newValue)
Set the element at position i to the given value and return the
old value.
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final
int
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length()
Returns the length of the array.
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final
void
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set(int i, E newValue)
Set the element at position i to the given value.
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String
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toString()
Returns the String representation of the current values of array.
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final
boolean
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weakCompareAndSet(int i, E expect, E update)
Atomically set the value to the given updated value
if the current value == the expected value.
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[Expand]
Inherited Methods |
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From class java.lang.Object
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Object
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clone()
Creates and returns a copy of this Object.
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boolean
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equals(Object o)
Compares this instance with the specified object and indicates if they
are equal.
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void
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finalize()
Is called before the object's memory is being reclaimed by the VM.
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final
Class<? extends Object>
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getClass()
Returns the unique instance of Class which represents this
object's class. |
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int
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hashCode()
Returns an integer hash code for this object.
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final
void
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notify()
Causes a thread which is waiting on this object's monitor (by means of
calling one of the wait() methods) to be woken up.
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final
void
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notifyAll()
Causes all threads which are waiting on this object's monitor (by means
of calling one of the wait() methods) to be woken up.
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String
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toString()
Returns a string containing a concise, human-readable description of this
object.
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final
void
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wait(long millis, int nanos)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
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final
void
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wait(long millis)
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the
specified timeout expires.
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final
void
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wait()
Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.
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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 |
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.
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 |
public
final
int
length
()
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.
public
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.
May fail spuriously.
Parameters
| i
| the index |
| expect
| the expected value |
| update
| the new value |
