Package science.aist.jack.data

Class AtomicDouble

java.lang.Object

java.lang.Number

science.aist.jack.data.AtomicDouble

All Implemented Interfaces:

Serializable

public class AtomicDouble
extends Number

Implementation of AtomicFloat based on AtomicLong

Since:

2.0

Author:

Andreas Pointner

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
AtomicDouble()	Default constructor which initializes the object with 0d
AtomicDouble(double initialValue)	Constructor which initialized the object with initialValue

Method Summary

Modifier and Type	Method	Description
boolean	compareAndSet(float expect, float update)	Atomically sets the value to the given updated value if the current value == the expected value.
double	doubleValue()	returns the value as double
float	floatValue()	returns the value as float
double	get()	Gets the current value.
double	getAndSet(double newValue)	Atomically sets to the given value and returns the old value.
int	intValue()	returns the value as int
long	longValue()	returns the value as long
void	set(double newValue)	Sets to the given value.
boolean	weakCompareAndSetPlain(double expect, double update)	Atomically sets the value to the given updated value if the current value == the expected value.

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AtomicDouble

public AtomicDouble()

Default constructor which initializes the object with 0d

AtomicDouble

public AtomicDouble(double initialValue)

Constructor which initialized the object with initialValue

Parameters:

initialValue - the initial value for the object

Method Detail

compareAndSet

public final boolean compareAndSet(float expect,
                                   float update)

Atomically sets the value to the given updated value if the current value == the expected value.

Parameters:

expect - the expected value

update - the new value

Returns:

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

See Also:

AtomicLong.compareAndSet(long, long)

set

public final void set(double newValue)

Sets to the given value.

Parameters:

newValue - the new value

See Also:

AtomicLong.set(long)

get

public final double get()

Gets the current value.

Returns:

the current value

See Also:

AtomicLong.get()

getAndSet

public final double getAndSet(double newValue)

Atomically sets to the given value and returns the old value.

Parameters:

newValue - the new value

Returns:

the previous value

See Also:

AtomicLong.getAndSet(long)

weakCompareAndSetPlain

public final boolean weakCompareAndSetPlain(double expect,
                                            double update)

Atomically sets the value 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.

Parameters:

expect - the expected value

update - the new value

Returns:

true if successful

See Also:

AtomicLong.weakCompareAndSetPlain(long, long)

floatValue

public float floatValue()

returns the value as float

Specified by:

floatValue in class Number

Returns:

value as float

doubleValue

public double doubleValue()

returns the value as double

Specified by:

doubleValue in class Number

Returns:

value as double

intValue

public int intValue()

returns the value as int

Specified by:

intValue in class Number

Returns:

value as int

longValue

public long longValue()

returns the value as long

Specified by:

longValue in class Number

Returns:

value as long