org.terracotta.util
Interface ClusteredAtomicLong

All Known Implementing Classes:

TerracottaAtomicLong

public interface ClusteredAtomicLong

A long value that may updated atomically across the cluster.

Method Summary

long	addAndGet(long delta) Atomically add the supplied value to the current value.
byte	byteValue() Number.byteValue()
boolean	compareAndSet(long expect, long update) Atomically set the value to the new value if the current value == the given value.
long	decrementAndGet() Atomically decrement the current value.
double	doubleValue() Number.doubleValue()
float	floatValue() Number.floatValue()
long	get() Get the current value.
long	getAndAdd(long delta) Atomically add the supplied value to the current value.
long	getAndDecrement() Atomically decrement the current value.
long	getAndIncrement() Atomically increment the current value.
long	getAndSet(long newValue) Atomically: set to the given value and return the previous value.
long	incrementAndGet() Atomically increment the current value
int	intValue() Number.intValue()
long	longValue() Number.longValue()
void	set(long newValue) Set to the given value
short	shortValue() Number.shortValue()
String	toString()
boolean	weakCompareAndSet(long expect, long update) Atomically set the value to the new value if the current value == the given value.

Method Detail

addAndGet

long addAndGet(long delta)

Atomically add the supplied value to the current value.

Parameters:

delta - the value to add

Returns:

the new value

compareAndSet

boolean compareAndSet(long expect,
                      long update)

Atomically set the value to the new value if the current value == the given value.

Parameters:

expect - the expected value

update - the new value

Returns:

true if successful, false if the comparison failed

decrementAndGet

long decrementAndGet()

Atomically decrement the current value.

Returns:

the new value

get

long get()

Get the current value.

Returns:

the current value

getAndAdd

long getAndAdd(long delta)

Atomically add the supplied value to the current value.

Parameters:

delta - the value to add

Returns:

the previous value

getAndDecrement

long getAndDecrement()

Atomically decrement the current value.

Returns:

the previous value

getAndIncrement

long getAndIncrement()

Atomically increment the current value.

Returns:

the previous value

getAndSet

long getAndSet(long newValue)

Atomically: set to the given value and return the previous value.

Parameters:

newValue - the new value

Returns:

the previous value

incrementAndGet

long incrementAndGet()

Atomically increment the current value

Returns:

the new value

set

void set(long newValue)

Set to the given value

Parameters:

newValue - the new value

weakCompareAndSet

boolean weakCompareAndSet(long expect,
                          long update)

Atomically set the value to the new value if the current value == the given value.

May fail spuriously. Repeated uncontended valid calls will eventually succeed however.

Parameters:

expect - the expected value

update - the new value

Returns:

true if successful, false if the comparison failed

byteValue

byte byteValue()

Number.byteValue()

shortValue

short shortValue()

Number.shortValue()

intValue

int intValue()

Number.intValue()

longValue

long longValue()

Number.longValue()

floatValue

float floatValue()

Number.floatValue()

doubleValue

double doubleValue()

Number.doubleValue()

toString

String toString()

Overrides:

toString in class Object