Package org.moeaframework.problem

Class TimingProblem

java.lang.Object

org.moeaframework.problem.ProblemWrapper

org.moeaframework.problem.TimingProblem

All Implemented Interfaces:

AutoCloseable, Problem

public class TimingProblem
extends ProblemWrapper

Wraps a problem to collect objective function evaluation timing data. Precision and accuracy of the timing data is dependent on System.nanoTime().

Field Summary

Fields inherited from class org.moeaframework.problem.ProblemWrapper

problem

Constructor Summary

Constructors

Constructor	Description
TimingProblem(Problem problem)	Decorates the specified problem to collecting objective function evaluation timing data.

Method Summary

Modifier and Type	Method	Description
void	clear()	Clears any timing data collected.
void	evaluate(Solution solution)	Evaluates the solution, updating the solution's objectives in place.
long	getNanoseconds()	Returns the time, in nanoseconds, expended on objective function evaluation.
int	getNFE()	Returns the number of times the objective function was evaluated.
double	getSeconds()	Returns the time, in seconds, expended on objective function evaluation.

Methods inherited from class org.moeaframework.problem.ProblemWrapper

close, getName, getNumberOfConstraints, getNumberOfObjectives, getNumberOfVariables, newSolution

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.moeaframework.core.Problem

isType

Constructor Details

TimingProblem

public TimingProblem(Problem problem)

Decorates the specified problem to collecting objective function evaluation timing data.

Parameters:

problem - the problem to decorate

Method Details

evaluate

public void evaluate(Solution solution)

Description copied from interface: Problem

Evaluates the solution, updating the solution's objectives in place. Algorithms must explicitly call this method when appropriate to evaluate new solutions or reevaluate modified solutions.

Specified by:

evaluate in interface Problem

Overrides:

evaluate in class ProblemWrapper

Parameters:

solution - the solution to be evaluated

clear

public void clear()

Clears any timing data collected.

getNanoseconds

public long getNanoseconds()

Returns the time, in nanoseconds, expended on objective function evaluation.

Returns:

the time, in nanoseconds, expended on objective function evaluation

getSeconds

public double getSeconds()

Returns the time, in seconds, expended on objective function evaluation.

Returns:

the time, in seconds, expended on objective function evaluation

getNFE

public int getNFE()

Returns the number of times the objective function was evaluated.

Returns:

the number of times the objective function was evaluated