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Java™ Platform Standard Ed. 6 |
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java.lang.Objectjava.util.concurrent.atomic.AtomicIntegerArray
public class AtomicIntegerArray
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.
| Constructor Summary | |
|---|---|
AtomicIntegerArray(int length)
Creates a new AtomicIntegerArray of given length. |
|
AtomicIntegerArray(int[] array)
Creates a new AtomicIntegerArray with the same length as, and all elements copied from, the given array. |
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| Method Summary | |
|---|---|
int |
addAndGet(int i,
int delta)
Atomically adds the given value to the element at index i. |
boolean |
compareAndSet(int i,
int expect,
int update)
Atomically sets the element at position i to the given
updated value if the current value == the expected value. |
int |
decrementAndGet(int i)
Atomically decrements by one the element at index i. |
int |
get(int i)
Gets the current value at position i. |
int |
getAndAdd(int i,
int delta)
Atomically adds the given value to the element at index i. |
int |
getAndDecrement(int i)
Atomically decrements by one the element at index i. |
int |
getAndIncrement(int i)
Atomically increments by one the element at index i. |
int |
getAndSet(int i,
int newValue)
Atomically sets the element at position i to the given
value and returns the old value. |
int |
incrementAndGet(int i)
Atomically increments by one the element at index i. |
void |
lazySet(int i,
int newValue)
Eventually sets the element at position i to the given value. |
int |
length()
Returns the length of the array. |
void |
set(int i,
int newValue)
Sets the element at position i to the given value. |
String |
toString()
Returns the String representation of the current values of array. |
boolean |
weakCompareAndSet(int i,
int expect,
int update)
Atomically sets the element at position i to the given
updated value if the current value == the expected value. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public AtomicIntegerArray(int length)
length - the length of the arraypublic AtomicIntegerArray(int[] array)
array - the array to copy elements from
NullPointerException - if array is null| Method Detail |
|---|
public final int length()
public final int get(int i)
i.
i - the index
public final void set(int i,
int newValue)
i to the given value.
i - the indexnewValue - the new value
public final void lazySet(int i,
int newValue)
i to the given value.
i - the indexnewValue - the new value
public final int getAndSet(int i,
int newValue)
i to the given
value and returns the old value.
i - the indexnewValue - the new value
public final boolean compareAndSet(int i,
int expect,
int update)
i to the given
updated value if the current value == the expected value.
i - the indexexpect - the expected valueupdate - the new value
public final boolean weakCompareAndSet(int i,
int expect,
int update)
i to the given
updated value if the current value == the expected value.
May fail spuriously
and does not provide ordering guarantees, so is only rarely an
appropriate alternative to compareAndSet.
i - the indexexpect - the expected valueupdate - the new value
public final int getAndIncrement(int i)
i.
i - the index
public final int getAndDecrement(int i)
i.
i - the index
public final int getAndAdd(int i,
int delta)
i.
i - the indexdelta - the value to add
public final int incrementAndGet(int i)
i.
i - the index
public final int decrementAndGet(int i)
i.
i - the index
public final int addAndGet(int i,
int delta)
i.
i - the indexdelta - the value to add
public String toString()
toString in class Object
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Java™ Platform Standard Ed. 6 |
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