OpenJDK 1.22 · java.util.concurrent.atomic.AtomicLongArray

Modifier and Type	Field and Description
private static final VarHandle	AA
private final long[]	array
private static final long	serialVersionUID

Access	Constructor and Description
public	AtomicLongArray(int the length of the array length) Creates a new AtomicLongArray of the given length, with all elements initially zero.
public	AtomicLongArray(long[] the array to copy elements from array) Creates a new AtomicLongArray with the same length as, and all elements copied from, the given array.

Method Summary

Modifier and Type	Method and Description
public final long	Returns: the updated value accumulateAndGet(int the index i, long the update value x, LongBinaryOperator a side-effect-free function of two arguments accumulatorFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the element at index `i` with the results of applying the given function to the current and given values, returning the updated value.
public long	Returns: the updated value addAndGet(int the index i, long the value to add delta) Atomically adds the given value to the element at index `i`, with memory effects as specified by `VarHandle#getAndAdd`.
public final long	Returns: the witness value, which will be the same as the expected value if successful compareAndExchange(int the index i, long the expected value expectedValue, long the new value newValue) Atomically sets the element at index `i` to `newValue` if the element's current value, referred to as the witness value, `== expectedValue`, with memory effects as specified by `VarHandle#compareAndExchange`.
public final long	Returns: the witness value, which will be the same as the expected value if successful compareAndExchangeAcquire(int the index i, long the expected value expectedValue, long the new value newValue) Atomically sets the element at index `i` to `newValue` if the element's current value, referred to as the witness value, `== expectedValue`, with memory effects as specified by `VarHandle#compareAndExchangeAcquire`.
public final long	Returns: the witness value, which will be the same as the expected value if successful compareAndExchangeRelease(int the index i, long the expected value expectedValue, long the new value newValue) Atomically sets the element at index `i` to `newValue` if the element's current value, referred to as the witness value, `== expectedValue`, with memory effects as specified by `VarHandle#compareAndExchangeRelease`.
public final boolean	Returns: `true` if successful. False return indicates that the actual value was not equal to the expected value. compareAndSet(int the index i, long the expected value expectedValue, long the new value newValue) Atomically sets the element at index `i` to `newValue` if the element's current value `== expectedValue`, with memory effects as specified by `VarHandle#compareAndSet`.
public final long	Returns: the updated value decrementAndGet(int the index i) Atomically decrements the value of the element at index `i`, with memory effects as specified by `VarHandle#getAndAdd`.
public final long	Returns: the current value get(int the index i) Returns the current value of the element at index `i`, with memory effects as specified by `VarHandle#getVolatile`.
public final long	Returns: the value getAcquire(int the index i) Returns the current value of the element at index `i`, with memory effects as specified by `VarHandle#getAcquire`.
public final long	Returns: the previous value getAndAccumulate(int the index i, long the update value x, LongBinaryOperator a side-effect-free function of two arguments accumulatorFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the element at index `i` with the results of applying the given function to the current and given values, returning the previous value.
public final long	Returns: the previous value getAndAdd(int the index i, long the value to add delta) Atomically adds the given value to the element at index `i`, with memory effects as specified by `VarHandle#getAndAdd`.
public final long	Returns: the previous value getAndDecrement(int the index i) Atomically decrements the value of the element at index `i`, with memory effects as specified by `VarHandle#getAndAdd`.
public final long	Returns: the previous value getAndIncrement(int the index i) Atomically increments the value of the element at index `i`, with memory effects as specified by `VarHandle#getAndAdd`.
public final long	Returns: the previous value getAndSet(int the index i, long the new value newValue) Atomically sets the element at index `i` to `newValue` and returns the old value, with memory effects as specified by `VarHandle#getAndSet`.
public final long	Returns: the previous value getAndUpdate(int the index i, LongUnaryOperator a side-effect-free function updateFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the element at index `i` with the results of applying the given function, returning the previous value.
public final long	Returns: the value getOpaque(int the index i) Returns the current value of the element at index `i`, with memory effects as specified by `VarHandle#getOpaque`.
public final long	Returns: the value getPlain(int the index i) Returns the current value of the element at index `i`, with memory semantics of reading as if the variable was declared non-`volatile`.
public final long	Returns: the updated value incrementAndGet(int the index i) Atomically increments the value of the element at index `i`, with memory effects as specified by `VarHandle#getAndAdd`.
public final void	lazySet(int the index i, long the new value newValue) Sets the element at index `i` to `newValue`, with memory effects as specified by `VarHandle#setRelease`.
public final int	Returns: the length of the array length() Returns the length of the array.
public final void	set(int the index i, long the new value newValue) Sets the element at index `i` to `newValue`, with memory effects as specified by `VarHandle#setVolatile`.
public final void	setOpaque(int the index i, long the new value newValue) Sets the element at index `i` to `newValue`, with memory effects as specified by `VarHandle#setOpaque`.
public final void	setPlain(int the index i, long the new value newValue) Sets the element at index `i` to `newValue`, with memory semantics of setting as if the variable was declared non-`volatile` and non-`final`.
public final void	setRelease(int the index i, long the new value newValue) Sets the element at index `i` to `newValue`, with memory effects as specified by `VarHandle#setRelease`.
public String	Returns: the String representation of the current values of array toString() Overrides java.lang.Object.toString. Returns the String representation of the current values of array.
public final long	Returns: the updated value updateAndGet(int the index i, LongUnaryOperator a side-effect-free function updateFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the element at index `i` with the results of applying the given function, returning the updated value.
public final boolean	Returns: `true` if successful weakCompareAndSet(int the index i, long the expected value expectedValue, long the new value newValue) Deprecated since 9. This method has plain memory effects but the method name implies volatile memory effects (see methods such as `compareAndExchange` and `compareAndSet`). Possibly atomically sets the element at index `i` to `newValue` if the element's current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetPlain`.
public final boolean	Returns: `true` if successful weakCompareAndSetAcquire(int the index i, long the expected value expectedValue, long the new value newValue) Possibly atomically sets the element at index `i` to `newValue` if the element's current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetAcquire`.
public final boolean	Returns: `true` if successful weakCompareAndSetPlain(int the index i, long the expected value expectedValue, long the new value newValue) Possibly atomically sets the element at index `i` to `newValue` if the element's current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetPlain`.
public final boolean	Returns: `true` if successful weakCompareAndSetRelease(int the index i, long the expected value expectedValue, long the new value newValue) Possibly atomically sets the element at index `i` to `newValue` if the element's current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetRelease`.
public final boolean	Returns: `true` if successful weakCompareAndSetVolatile(int the index i, long the expected value expectedValue, long the new value newValue) Possibly atomically sets the element at index `i` to `newValue` if the element's current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSet`.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll wait wait wait

AA	back to summary
private static final VarHandle AA

array	back to summary
private final long[] array

serialVersionUID	back to summary
private static final long serialVersionUID

AtomicLongArray	back to summary
public AtomicLongArray(int length) Creates a new AtomicLongArray of the given length, with all elements initially zero. Parameters length:int the length of the array

AtomicLongArray	back to summary
public AtomicLongArray(long[] array) Creates a new AtomicLongArray with the same length as, and all elements copied from, the given array. Parameters array:long[] the array to copy elements from Exceptions NullPointerException: if array is null

Method Detail

accumulateAndGet back to summary

accumulateAndGet	back to summary
public final long accumulateAndGet(int i, long x, LongBinaryOperator accumulatorFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the element at index `i` with the results of applying the given function to the current and given values, returning the updated value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads. The function is applied with the current value of the element at index `i` as its first argument, and the given update as the second argument. Parameters i:int the index x:long the update value accumulatorFunction:LongBinaryOperator a side-effect-free function of two arguments Returns:long the updated value Since 1.8

public final long accumulateAndGet(int i, long x, LongBinaryOperator accumulatorFunction)

Atomically updates (with memory effects as specified by VarHandle#compareAndSet) the element at index i with the results of applying the given function to the current and given values, returning the updated value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads. The function is applied with the current value of the element at index i as its first argument, and the given update as the second argument.

Parameters

i:int: the index
x:long: the update value
accumulatorFunction:LongBinaryOperator: a side-effect-free function of two arguments

Returns:long

the updated value

Since

1.8

addAndGet back to summary

addAndGet	back to summary
public long addAndGet(int i, long delta) Atomically adds the given value to the element at index `i`, with memory effects as specified by `VarHandle#getAndAdd`. Parameters i:int the index delta:long the value to add Returns:long the updated value

public long addAndGet(int i, long delta)

Atomically adds the given value to the element at index i, with memory effects as specified by VarHandle#getAndAdd.

Parameters

i:int: the index
delta:long: the value to add

Returns:long

the updated value

compareAndExchange back to summary

compareAndExchange	back to summary
public final long compareAndExchange(int i, long expectedValue, long newValue) Atomically sets the element at index `i` to `newValue` if the element's current value, referred to as the witness value, `== expectedValue`, with memory effects as specified by `VarHandle#compareAndExchange`. Parameters i:int the index expectedValue:long the expected value newValue:long the new value Returns:long the witness value, which will be the same as the expected value if successful Since 9

public final long compareAndExchange(int i, long expectedValue, long newValue)

Atomically sets the element at index i to newValue if the element's current value, referred to as the witness value, == expectedValue, with memory effects as specified by VarHandle#compareAndExchange.

Parameters

i:int: the index
expectedValue:long: the expected value
newValue:long: the new value

Returns:long

the witness value, which will be the same as the expected value if successful

Since

compareAndExchangeAcquire back to summary

compareAndExchangeAcquire	back to summary
public final long compareAndExchangeAcquire(int i, long expectedValue, long newValue) Atomically sets the element at index `i` to `newValue` if the element's current value, referred to as the witness value, `== expectedValue`, with memory effects as specified by `VarHandle#compareAndExchangeAcquire`. Parameters i:int the index expectedValue:long the expected value newValue:long the new value Returns:long the witness value, which will be the same as the expected value if successful Since 9

public final long compareAndExchangeAcquire(int i, long expectedValue, long newValue)

Parameters

i:int: the index
expectedValue:long: the expected value
newValue:long: the new value

Returns:long

the witness value, which will be the same as the expected value if successful

Since

compareAndExchangeRelease back to summary

compareAndExchangeRelease	back to summary
public final long compareAndExchangeRelease(int i, long expectedValue, long newValue) Atomically sets the element at index `i` to `newValue` if the element's current value, referred to as the witness value, `== expectedValue`, with memory effects as specified by `VarHandle#compareAndExchangeRelease`. Parameters i:int the index expectedValue:long the expected value newValue:long the new value Returns:long the witness value, which will be the same as the expected value if successful Since 9

public final long compareAndExchangeRelease(int i, long expectedValue, long newValue)

Parameters

i:int: the index
expectedValue:long: the expected value
newValue:long: the new value

Returns:long

the witness value, which will be the same as the expected value if successful

Since

compareAndSet back to summary

compareAndSet	back to summary
public final boolean compareAndSet(int i, long expectedValue, long newValue) Atomically sets the element at index `i` to `newValue` if the element's current value `== expectedValue`, with memory effects as specified by `VarHandle#compareAndSet`. Parameters i:int the index expectedValue:long the expected value newValue:long the new value Returns:boolean `true` if successful. False return indicates that the actual value was not equal to the expected value.

public final boolean compareAndSet(int i, long expectedValue, long newValue)

Atomically sets the element at index i to newValue if the element's current value == expectedValue, with memory effects as specified by VarHandle#compareAndSet.

Parameters

i:int: the index
expectedValue:long: the expected value
newValue:long: the new value

Returns:boolean

true if successful. False return indicates that the actual value was not equal to the expected value.

decrementAndGet back to summary

decrementAndGet	back to summary
public final long decrementAndGet(int i) Atomically decrements the value of the element at index `i`, with memory effects as specified by `VarHandle#getAndAdd`. Equivalent to `addAndGet(i, -1)`. Parameters i:int the index Returns:long the updated value

public final long decrementAndGet(int i)

Atomically decrements the value of the element at index i, with memory effects as specified by VarHandle#getAndAdd.

Equivalent to addAndGet(i, -1).

Parameters

i:int: the index

Returns:long

the updated value

get back to summary

get	back to summary
public final long get(int i) Returns the current value of the element at index `i`, with memory effects as specified by `VarHandle#getVolatile`. Parameters i:int the index Returns:long the current value

public final long get(int i)

Returns the current value of the element at index i, with memory effects as specified by VarHandle#getVolatile.

Parameters

i:int: the index

Returns:long

the current value

getAcquire back to summary

getAcquire	back to summary
public final long getAcquire(int i) Returns the current value of the element at index `i`, with memory effects as specified by `VarHandle#getAcquire`. Parameters i:int the index Returns:long the value Since 9

public final long getAcquire(int i)

Returns the current value of the element at index i, with memory effects as specified by VarHandle#getAcquire.

Parameters

i:int: the index

Returns:long

the value

Since

getAndAccumulate back to summary

getAndAccumulate	back to summary
public final long getAndAccumulate(int i, long x, LongBinaryOperator accumulatorFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the element at index `i` with the results of applying the given function to the current and given values, returning the previous value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads. The function is applied with the current value of the element at index `i` as its first argument, and the given update as the second argument. Parameters i:int the index x:long the update value accumulatorFunction:LongBinaryOperator a side-effect-free function of two arguments Returns:long the previous value Since 1.8

public final long getAndAccumulate(int i, long x, LongBinaryOperator accumulatorFunction)

Atomically updates (with memory effects as specified by VarHandle#compareAndSet) the element at index i with the results of applying the given function to the current and given values, returning the previous value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads. The function is applied with the current value of the element at index i as its first argument, and the given update as the second argument.

Parameters

i:int: the index
x:long: the update value
accumulatorFunction:LongBinaryOperator: a side-effect-free function of two arguments

Returns:long

the previous value

Since

1.8

getAndAdd back to summary

getAndAdd	back to summary
public final long getAndAdd(int i, long delta) Atomically adds the given value to the element at index `i`, with memory effects as specified by `VarHandle#getAndAdd`. Parameters i:int the index delta:long the value to add Returns:long the previous value

public final long getAndAdd(int i, long delta)

Atomically adds the given value to the element at index i, with memory effects as specified by VarHandle#getAndAdd.

Parameters

i:int: the index
delta:long: the value to add

Returns:long

the previous value

getAndDecrement back to summary

getAndDecrement	back to summary
public final long getAndDecrement(int i) Atomically decrements the value of the element at index `i`, with memory effects as specified by `VarHandle#getAndAdd`. Equivalent to `getAndAdd(i, -1)`. Parameters i:int the index Returns:long the previous value

public final long getAndDecrement(int i)

Atomically decrements the value of the element at index i, with memory effects as specified by VarHandle#getAndAdd.

Equivalent to getAndAdd(i, -1).

Parameters

i:int: the index

Returns:long

the previous value

getAndIncrement back to summary

getAndIncrement	back to summary
public final long getAndIncrement(int i) Atomically increments the value of the element at index `i`, with memory effects as specified by `VarHandle#getAndAdd`. Equivalent to `getAndAdd(i, 1)`. Parameters i:int the index Returns:long the previous value

public final long getAndIncrement(int i)

Atomically increments the value of the element at index i, with memory effects as specified by VarHandle#getAndAdd.

Equivalent to getAndAdd(i, 1).

Parameters

i:int: the index

Returns:long

the previous value

getAndSet back to summary

getAndSet	back to summary
public final long getAndSet(int i, long newValue) Atomically sets the element at index `i` to `newValue` and returns the old value, with memory effects as specified by `VarHandle#getAndSet`. Parameters i:int the index newValue:long the new value Returns:long the previous value

public final long getAndSet(int i, long newValue)

Atomically sets the element at index i to newValue and returns the old value, with memory effects as specified by VarHandle#getAndSet.

Parameters

i:int: the index
newValue:long: the new value

Returns:long

the previous value

getAndUpdate back to summary

getAndUpdate	back to summary
public final long getAndUpdate(int i, LongUnaryOperator updateFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the element at index `i` with the results of applying the given function, returning the previous value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads. Parameters i:int the index updateFunction:LongUnaryOperator a side-effect-free function Returns:long the previous value Since 1.8

public final long getAndUpdate(int i, LongUnaryOperator updateFunction)

Atomically updates (with memory effects as specified by VarHandle#compareAndSet) the element at index i with the results of applying the given function, returning the previous value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads.

Parameters

i:int: the index
updateFunction:LongUnaryOperator: a side-effect-free function

Returns:long

the previous value

Since

1.8

getOpaque back to summary

getOpaque	back to summary
public final long getOpaque(int i) Returns the current value of the element at index `i`, with memory effects as specified by `VarHandle#getOpaque`. Parameters i:int the index Returns:long the value Since 9

public final long getOpaque(int i)

Returns the current value of the element at index i, with memory effects as specified by VarHandle#getOpaque.

Parameters

i:int: the index

Returns:long

the value

Since

getPlain back to summary

getPlain	back to summary
public final long getPlain(int i) Returns the current value of the element at index `i`, with memory semantics of reading as if the variable was declared non-`volatile`. Parameters i:int the index Returns:long the value Since 9

public final long getPlain(int i)

Returns the current value of the element at index i, with memory semantics of reading as if the variable was declared non-volatile.

Parameters

i:int: the index

Returns:long

the value

Since

incrementAndGet back to summary

incrementAndGet	back to summary
public final long incrementAndGet(int i) Atomically increments the value of the element at index `i`, with memory effects as specified by `VarHandle#getAndAdd`. Equivalent to `addAndGet(i, 1)`. Parameters i:int the index Returns:long the updated value

public final long incrementAndGet(int i)

Atomically increments the value of the element at index i, with memory effects as specified by VarHandle#getAndAdd.

Equivalent to addAndGet(i, 1).

Parameters

i:int: the index

Returns:long

the updated value

lazySet back to summary

lazySet	back to summary
public final void lazySet(int i, long newValue) Sets the element at index `i` to `newValue`, with memory effects as specified by `VarHandle#setRelease`. Parameters i:int the index newValue:long the new value Since 1.6

public final void lazySet(int i, long newValue)

Sets the element at index i to newValue, with memory effects as specified by VarHandle#setRelease.

Parameters

i:int: the index
newValue:long: the new value

Since

1.6

length	back to summary
public final int length() Returns the length of the array. Returns:int the length of the array

length

back to summary

public final int length()

Returns the length of the array.

Returns:int: the length of the array

set back to summary

set	back to summary
public final void set(int i, long newValue) Sets the element at index `i` to `newValue`, with memory effects as specified by `VarHandle#setVolatile`. Parameters i:int the index newValue:long the new value

public final void set(int i, long newValue)

Sets the element at index i to newValue, with memory effects as specified by VarHandle#setVolatile.

Parameters

i:int: the index
newValue:long: the new value

setOpaque back to summary

setOpaque	back to summary
public final void setOpaque(int i, long newValue) Sets the element at index `i` to `newValue`, with memory effects as specified by `VarHandle#setOpaque`. Parameters i:int the index newValue:long the new value Since 9

public final void setOpaque(int i, long newValue)

Sets the element at index i to newValue, with memory effects as specified by VarHandle#setOpaque.

Parameters

i:int: the index
newValue:long: the new value

Since

setPlain back to summary

setPlain	back to summary
public final void setPlain(int i, long newValue) Sets the element at index `i` to `newValue`, with memory semantics of setting as if the variable was declared non-`volatile` and non-`final`. Parameters i:int the index newValue:long the new value Since 9

public final void setPlain(int i, long newValue)

Sets the element at index i to newValue, with memory semantics of setting as if the variable was declared non-volatile and non-final.

Parameters

i:int: the index
newValue:long: the new value

Since

setRelease back to summary

setRelease	back to summary
public final void setRelease(int i, long newValue) Sets the element at index `i` to `newValue`, with memory effects as specified by `VarHandle#setRelease`. Parameters i:int the index newValue:long the new value Since 9

public final void setRelease(int i, long newValue)

Sets the element at index i to newValue, with memory effects as specified by VarHandle#setRelease.

Parameters

i:int: the index
newValue:long: the new value

Since

toString	back to summary
public String toString() Overrides java.lang.Object.toString. Returns the String representation of the current values of array. Returns:String the String representation of the current values of array

toString

back to summary

public String toString()

Overrides java.lang.Object.toString.

Returns the String representation of the current values of array.

Returns:String: the String representation of the current values of array

updateAndGet back to summary

updateAndGet	back to summary
public final long updateAndGet(int i, LongUnaryOperator updateFunction) Atomically updates (with memory effects as specified by `VarHandle#compareAndSet`) the element at index `i` with the results of applying the given function, returning the updated value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads. Parameters i:int the index updateFunction:LongUnaryOperator a side-effect-free function Returns:long the updated value Since 1.8

public final long updateAndGet(int i, LongUnaryOperator updateFunction)

Atomically updates (with memory effects as specified by VarHandle#compareAndSet) the element at index i with the results of applying the given function, returning the updated value. The function should be side-effect-free, since it may be re-applied when attempted updates fail due to contention among threads.

Parameters

i:int: the index
updateFunction:LongUnaryOperator: a side-effect-free function

Returns:long

the updated value

Since

1.8

weakCompareAndSet back to summary

weakCompareAndSet	back to summary
public final boolean weakCompareAndSet(int i, long expectedValue, long newValue) Deprecated since 9. This method has plain memory effects but the method name implies volatile memory effects (see methods such as `compareAndExchange` and `compareAndSet`). To avoid confusion over plain or volatile memory effects it is recommended that the method `weakCompareAndSetPlain` be used instead. Possibly atomically sets the element at index `i` to `newValue` if the element's current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetPlain`. Parameters i:int the index expectedValue:long the expected value newValue:long the new value Returns:boolean `true` if successful Annotations @Deprecated since:9 See Also `weakCompareAndSetPlain`

public final boolean weakCompareAndSet(int i, long expectedValue, long newValue)

Deprecated

since 9.

This method has plain memory effects but the method name implies volatile memory effects (see methods such as compareAndExchange and compareAndSet). To avoid confusion over plain or volatile memory effects it is recommended that the method weakCompareAndSetPlain be used instead.

Possibly atomically sets the element at index i to newValue if the element's current value == expectedValue, with memory effects as specified by VarHandle#weakCompareAndSetPlain.

Parameters

i:int: the index
expectedValue:long: the expected value
newValue:long: the new value

Returns:boolean

true if successful

Annotations

@Deprecated
since:9

See Also

weakCompareAndSetPlain

weakCompareAndSetAcquire back to summary

weakCompareAndSetAcquire	back to summary
public final boolean weakCompareAndSetAcquire(int i, long expectedValue, long newValue) Possibly atomically sets the element at index `i` to `newValue` if the element's current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetAcquire`. Parameters i:int the index expectedValue:long the expected value newValue:long the new value Returns:boolean `true` if successful Since 9

public final boolean weakCompareAndSetAcquire(int i, long expectedValue, long newValue)

Possibly atomically sets the element at index i to newValue if the element's current value == expectedValue, with memory effects as specified by VarHandle#weakCompareAndSetAcquire.

Parameters

i:int: the index
expectedValue:long: the expected value
newValue:long: the new value

Returns:boolean

true if successful

Since

weakCompareAndSetPlain back to summary

weakCompareAndSetPlain	back to summary
public final boolean weakCompareAndSetPlain(int i, long expectedValue, long newValue) Possibly atomically sets the element at index `i` to `newValue` if the element's current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetPlain`. Parameters i:int the index expectedValue:long the expected value newValue:long the new value Returns:boolean `true` if successful Since 9

public final boolean weakCompareAndSetPlain(int i, long expectedValue, long newValue)

Possibly atomically sets the element at index i to newValue if the element's current value == expectedValue, with memory effects as specified by VarHandle#weakCompareAndSetPlain.

Parameters

i:int: the index
expectedValue:long: the expected value
newValue:long: the new value

Returns:boolean

true if successful

Since

weakCompareAndSetRelease back to summary

weakCompareAndSetRelease	back to summary
public final boolean weakCompareAndSetRelease(int i, long expectedValue, long newValue) Possibly atomically sets the element at index `i` to `newValue` if the element's current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSetRelease`. Parameters i:int the index expectedValue:long the expected value newValue:long the new value Returns:boolean `true` if successful Since 9

public final boolean weakCompareAndSetRelease(int i, long expectedValue, long newValue)

Possibly atomically sets the element at index i to newValue if the element's current value == expectedValue, with memory effects as specified by VarHandle#weakCompareAndSetRelease.

Parameters

i:int: the index
expectedValue:long: the expected value
newValue:long: the new value

Returns:boolean

true if successful

Since

weakCompareAndSetVolatile back to summary

weakCompareAndSetVolatile	back to summary
public final boolean weakCompareAndSetVolatile(int i, long expectedValue, long newValue) Possibly atomically sets the element at index `i` to `newValue` if the element's current value `== expectedValue`, with memory effects as specified by `VarHandle#weakCompareAndSet`. Parameters i:int the index expectedValue:long the expected value newValue:long the new value Returns:boolean `true` if successful Since 9

public final boolean weakCompareAndSetVolatile(int i, long expectedValue, long newValue)

Possibly atomically sets the element at index i to newValue if the element's current value == expectedValue, with memory effects as specified by VarHandle#weakCompareAndSet.

Parameters

i:int: the index
expectedValue:long: the expected value
newValue:long: the new value

Returns:boolean

true if successful

Since

public Class AtomicLongArray

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