Package org.moeaframework.core.termination

Class MaxFunctionEvaluations

java.lang.Object

org.moeaframework.core.termination.MaxFunctionEvaluations

All Implemented Interfaces:

Named, TerminationCondition

public class MaxFunctionEvaluations
extends Object
implements TerminationCondition

Terminates a run when the maximum number of function evaluations is exceeded.

Constructor Summary

Constructors

Constructor	Description
MaxFunctionEvaluations(int maxEvaluations)	Constructs a new termination condition based on the maximum number of function evaluations.

Method Summary

Modifier and Type	Method	Description
static int	derive(TerminationCondition terminationCondition)	Attempts to determine the maximum number of function evaluations that would execute given the termination condition.
double	getPercentComplete(Algorithm algorithm)	Returns the percentage that this condition is complete, as a value between 0.0 and 100.0.
void	initialize(Algorithm algorithm)	Invoked when the algorithm is created to collect any initial conditions.
boolean	shouldTerminate(Algorithm algorithm)	Invoked after every step to check if the algorithm should terminate.

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.termination.TerminationCondition

getName

Constructor Details

MaxFunctionEvaluations

public MaxFunctionEvaluations(int maxEvaluations)

Constructs a new termination condition based on the maximum number of function evaluations.

Parameters:

maxEvaluations - the maximum number of function evaluations

Method Details

initialize

public void initialize(Algorithm algorithm)

Description copied from interface: TerminationCondition

Invoked when the algorithm is created to collect any initial conditions. Note that the algorithm may not have been initialized at this point.

Specified by:

initialize in interface TerminationCondition

Parameters:

algorithm - the algorithm

shouldTerminate

public boolean shouldTerminate(Algorithm algorithm)

Description copied from interface: TerminationCondition

Invoked after every step to check if the algorithm should terminate.

Specified by:

shouldTerminate in interface TerminationCondition

Parameters:

algorithm - the algorithm

Returns:

true if the algorithm should terminate; false otherwise

getPercentComplete

public double getPercentComplete(Algorithm algorithm)

Description copied from interface: TerminationCondition

Returns the percentage that this condition is complete, as a value between 0.0 and 100.0. If the percentage can not be determined, returns 0d/0d.

Specified by:

getPercentComplete in interface TerminationCondition

Parameters:

algorithm - the algorithm

Returns:

the percentage completion

derive

public static int derive(TerminationCondition terminationCondition)

Attempts to determine the maximum number of function evaluations that would execute given the termination condition.

Parameters:

terminationCondition - the termination condition

Returns:

the max number of function evaluations, or -1 if the value could not be derived