|
Préférences
Moteurs de recherche
|
|||||||||||||||||||||||||||||||||||||
JavaTM 2 Platform Std. Ed. v1.6.0
java.util.concurrent.atomic
|
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. |
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 nullMethod 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 valuepublic final void lazySet(int i, int newValue)
i
to the given value.
i
- the indexnewValue
- the new valuepublic 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()