Package org.uma.jmetal.util.measure.impl

Class DurationMeasure

java.lang.Object

org.uma.jmetal.util.naming.impl.SimpleDescribedEntity

org.uma.jmetal.util.measure.impl.SimpleMeasure<Long>

org.uma.jmetal.util.measure.impl.SimplePullMeasure<Long>

org.uma.jmetal.util.measure.impl.DurationMeasure

All Implemented Interfaces:

Serializable, Measure<Long>, PullMeasure<Long>, DescribedEntity

public class DurationMeasure
extends SimplePullMeasure<Long>

This measure allows to have a simple way to compute the time spent in doing something. For instance, an algorithm can compute the time spent to run. In such a case, the algorithm would call start() at the beginning of the running and stop() at the end. Additional calls to these two methods can also be made during the running to exclude specific parts from the counting. At any time during (and after) the running, the get() method can be used to know how much time have been spent so far. If the algorithm is rerun, it will restart and the additional time will sum up to the time already spent before, but it can be avoided by resetting the measure with reset().

Author:

Matthieu Vergne

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
DurationMeasure()

Method Summary

Modifier and Type	Method	Description
Long	get()
void	reset()	Reset the total time to zero.
void	start()	Start a round.
void	stop()	Stop a round.

Methods inherited from class org.uma.jmetal.util.naming.impl.SimpleDescribedEntity

description, name, setDescription, setName, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.uma.jmetal.util.naming.DescribedEntity

description, name

Constructor Details

DurationMeasure

public DurationMeasure()

Method Details

start

public void start()

Start a round. If the round is already started, it has no effect.

stop

public void stop()

Stop a round. If the round is already stopped, it has no effect.

get

public Long get()

Returns:

the total time spent so far

reset

public void reset()

Reset the total time to zero. If a round is currently running, it is restarted.