java.util.concurrent.atomic.AtomicLongArray
A long 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
Public Methods
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait
Details
Public Constructors
public
AtomicLongArray(int length)
Create a new AtomicLongArray of given length.
Parameters
length
| the length of the array
|
public
AtomicLongArray(long[] array)
Create a new AtomicLongArray with the same length as, and
all elements copied from, the given array.
Parameters
array
| the array to copy elements from |
Public Methods
public
long
addAndGet(int i, long delta)
Atomically add the given value to element at index
i.
Parameters
i
| the index |
delta
| the value to add |
public
final
boolean
compareAndSet(int i, long expect, long 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
long
decrementAndGet(int i)
Atomically decrement the element at index
i.
public
final
long
get(int i)
Get the current value at position
i.
public
final
long
getAndAdd(int i, long delta)
Atomically add the given value to element at index
i.
Parameters
i
| the index |
delta
| the value to add |
public
final
long
getAndDecrement(int i)
Atomically decrement by one the element at index
i.
public
final
long
getAndIncrement(int i)
Atomically increment by one the element at index
i.
public
final
long
getAndSet(int i, long 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
long
incrementAndGet(int i)
Atomically increment the element at index
i.
public
final
int
length()
Returns the length of the array.
public
final
void
set(int i, long 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, long expect, long 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 |