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Préférences
Moteurs de recherche
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JavaTM 2 Platform Std. Ed. v1.6.0
java.util.concurrent.atomic
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Constructor Summary | |
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AtomicReferenceArray(E[] array)
Creates a new AtomicReferenceArray with the same length as, and all elements copied from, the given array. |
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AtomicReferenceArray(int length)
Creates a new AtomicReferenceArray of given length. |
Method Summary | |
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boolean |
compareAndSet(int i,
E expect,
E update)
Atomically sets the element at position i to the given
updated value if the current value == the expected value. |
E |
get(int i)
Gets the current value at position i . |
E |
getAndSet(int i,
E newValue)
Atomically sets the element at position i to the given
value and returns the old value. |
void |
lazySet(int i,
E newValue)
Eventually sets the element at position i to the given value. |
int |
length()
Returns the length of the array. |
void |
set(int i,
E 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,
E expect,
E 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 |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public AtomicReferenceArray(int length)
length
- the length of the arraypublic AtomicReferenceArray(E[] array)
array
- the array to copy elements from
NullPointerException
- if array is nullMethod Detail |
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public final int length()
public final E get(int i)
i
.
i
- the index
public final void set(int i, E newValue)
i
to the given value.
i
- the indexnewValue
- the new valuepublic final void lazySet(int i, E newValue)
i
to the given value.
i
- the indexnewValue
- the new valuepublic final E getAndSet(int i, E newValue)
i
to the given
value and returns the old value.
i
- the indexnewValue
- the new value
public final boolean compareAndSet(int i, E expect, E 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, E expect, E 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 String toString()