org.terracotta.statistics.extended
Class NullCompoundOperation<T extends Enum<T>>

java.lang.Object
  org.terracotta.statistics.extended.NullCompoundOperation<T>

Type Parameters:

T - the generic type

All Implemented Interfaces:

CompoundOperation<T>, SamplingSupport

public final class NullCompoundOperation<T extends Enum<T>>
extends Object
implements CompoundOperation<T>

The Class NullCompoundOperation.

Author:

cdennis

Method Summary

CountOperation<T>	asCountOperation() Count operation.
Result	component(T result) Component.
Result	compound(Set<T> results) Compound.
boolean	expire(long expiry)
int	getHistorySampleSize() Gets the history sample size.
long	getHistorySampleTime(TimeUnit unit) Gets the history sample time.
long	getWindowSize(TimeUnit unit) Gets the window size.
static <T extends Enum<T>> CompoundOperation<T>	instance(Class<T> klazz) Instance.
boolean	isAlwaysOn() Checks if is always on.
SampledStatistic<Double>	ratioOf(Set<T> numerator, Set<T> denomiator) Ratio of.
void	setAlwaysOn(boolean enable) Sets the always on.
void	setHistory(int samples, long time, TimeUnit unit) Sets the history.
void	setWindow(long time, TimeUnit unit) Sets the window.
Class<T>	type() Type.

Methods inherited from class java.lang.Object

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

Method Detail

instance

public static <T extends Enum<T>> CompoundOperation<T> instance(Class<T> klazz)

Instance.

Type Parameters:

T - the generic type

Returns:

the operation

type

public Class<T> type()

Type.

Specified by:

type in interface CompoundOperation<T extends Enum<T>>

Returns:

the class

component

public Result component(T result)

Component.

Specified by:

component in interface CompoundOperation<T extends Enum<T>>

Parameters:

result - the result

Returns:

the result

compound

public Result compound(Set<T> results)

Compound.

Specified by:

compound in interface CompoundOperation<T extends Enum<T>>

Parameters:

results - the results

Returns:

the result

asCountOperation

public CountOperation<T> asCountOperation()

Description copied from interface: CompoundOperation

Count operation.

Specified by:

asCountOperation in interface CompoundOperation<T extends Enum<T>>

Returns:

the count operation

ratioOf

public SampledStatistic<Double> ratioOf(Set<T> numerator,
                                        Set<T> denomiator)

Ratio of.

Specified by:

ratioOf in interface CompoundOperation<T extends Enum<T>>

Parameters:

numerator - the numerator

denomiator - the denomiator

Returns:

the statistic

expire

public boolean expire(long expiry)

Specified by:

expire in interface SamplingSupport

setAlwaysOn

public void setAlwaysOn(boolean enable)

Sets the always on.

Specified by:

setAlwaysOn in interface CompoundOperation<T extends Enum<T>>

Specified by:

setAlwaysOn in interface SamplingSupport

Parameters:

enable - the new always on

setWindow

public void setWindow(long time,
                      TimeUnit unit)

Sets the window.

Specified by:

setWindow in interface CompoundOperation<T extends Enum<T>>

Parameters:

time - the time

unit - the unit

setHistory

public void setHistory(int samples,
                       long time,
                       TimeUnit unit)

Sets the history.

Specified by:

setHistory in interface CompoundOperation<T extends Enum<T>>

Parameters:

samples - the samples

time - the time

unit - the unit

isAlwaysOn

public boolean isAlwaysOn()

Checks if is always on.

Specified by:

isAlwaysOn in interface CompoundOperation<T extends Enum<T>>

Returns:

true, if is always on

getWindowSize

public long getWindowSize(TimeUnit unit)

Description copied from interface: CompoundOperation

Gets the window size.

Specified by:

getWindowSize in interface CompoundOperation<T extends Enum<T>>

Parameters:

unit - the unit

Returns:

the window size

getHistorySampleSize

public int getHistorySampleSize()

Gets the history sample size.

Specified by:

getHistorySampleSize in interface CompoundOperation<T extends Enum<T>>

Returns:

the history sample size

getHistorySampleTime

public long getHistorySampleTime(TimeUnit unit)

Gets the history sample time.

Specified by:

getHistorySampleTime in interface CompoundOperation<T extends Enum<T>>

Parameters:

unit - the unit

Returns:

the history sample time