E
- The base class of elements held in this arraypublic class AtomicReferenceArray<E> extends Object implements Serializable
java.util.concurrent.atomic
package
specification for description of the properties of atomic
variables.Constructor and Description |
---|
AtomicReferenceArray(E[] array)
Creates a new AtomicReferenceArray with the same length as, and
all elements copied from, the given array.
|
AtomicReferenceArray(int length)
Creates a new AtomicReferenceArray of the given length, with all
elements initially null.
|
Modifier and Type | Method and Description |
---|---|
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. |
public AtomicReferenceArray(int length)
length
- the length of the arraypublic AtomicReferenceArray(E[] array)
array
- the array to copy elements fromNullPointerException
- if array is nullpublic final int length()
public final E get(int i)
i
.i
- the indexpublic 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 valuepublic 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 valuepublic 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 Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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