org.moeaframework.algorithm.jmetal
Class JMetalAlgorithmAdapter

java.lang.Object
  org.moeaframework.algorithm.jmetal.JMetalAlgorithmAdapter

All Implemented Interfaces:

Algorithm

public class JMetalAlgorithmAdapter
extends Object
implements Algorithm

Adapter for JMetal algorithms. This allows JMetal algorithms to be used within the MOEA Framework as an Algorithm.

Constructor Summary

JMetalAlgorithmAdapter(jmetal.core.Algorithm algorithm, JMetalProblemAdapter problem)
Constructs an adapter for the specified JMetal algorithm.

Method Summary

void	evaluate(Solution solution) Evaluates the specified solution for the problem being solved by this algorithm.
int	getNumberOfEvaluations() Returns the number of times the evaluate method was invoked.
Problem	getProblem() Returns the problem being solved by this algorithm.
NondominatedPopulation	getResult() Returns the current best-known result.
Serializable	getState() Throws NotSerializableException since JMetal algorithms are currently not serializable.
boolean	isTerminated() Returns true if this algorithm is terminated; false otherwise.
void	setState(Object state) Throws NotSerializableException since JMetal algorithms are currently not serializable.
void	step() Performs one logical step of this algorithm.
void	terminate() Terminates this algorithm.

Methods inherited from class java.lang.Object

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

Constructor Detail

JMetalAlgorithmAdapter

public JMetalAlgorithmAdapter(jmetal.core.Algorithm algorithm,
                              JMetalProblemAdapter problem)

Constructs an adapter for the specified JMetal algorithm.

Parameters:

algorithm - the JMetal algorithm

Method Detail

evaluate

public void evaluate(Solution solution)

Description copied from interface: Algorithm

Evaluates the specified solution for the problem being solved by this algorithm.

Specified by:

evaluate in interface Algorithm

Parameters:

solution - the solution to be evaluated

See Also:

Problem.evaluate(Solution)

getNumberOfEvaluations

public int getNumberOfEvaluations()

Description copied from interface: Algorithm

Returns the number of times the evaluate method was invoked. This is the primary measure of runtime for optimization algorithms.

Specified by:

getNumberOfEvaluations in interface Algorithm

Returns:

the number of times the evaluate method was invoked

getProblem

public Problem getProblem()

Description copied from interface: Algorithm

Returns the problem being solved by this algorithm.

Specified by:

getProblem in interface Algorithm

Returns:

the problem being solved by this algorithm

getResult

public NondominatedPopulation getResult()

Description copied from interface: Algorithm

Returns the current best-known result.

Specified by:

getResult in interface Algorithm

Returns:

the current best-known result

step

public void step()

Description copied from interface: Algorithm

Performs one logical step of this algorithm. The amount of work performed depends on the implementation. One invocation of this method may produce one or many trial solutions.

This method should not be invoked when Algorithm.isTerminated() returns true.

Specified by:

step in interface Algorithm

isTerminated

public boolean isTerminated()

Description copied from interface: Algorithm

Returns true if this algorithm is terminated; false otherwise.

Specified by:

isTerminated in interface Algorithm

Returns:

true if this algorithm is terminated; false otherwise

See Also:

Algorithm.terminate()

terminate

public void terminate()

Description copied from interface: Algorithm

Terminates this algorithm. Implementations should use this method to free any underlying resources; however, the Algorithm.getResult() and Algorithm.getNumberOfEvaluations() methods are still required to work after termination.

Specified by:

terminate in interface Algorithm

getState

public Serializable getState()
                      throws NotSerializableException

Throws NotSerializableException since JMetal algorithms are currently not serializable.

Specified by:

getState in interface Algorithm

Returns:

a Serializable object representing the internal state of this algorithm

Throws:

NotSerializableException - if this algorithm does not support serialization

setState

public void setState(Object state)
              throws NotSerializableException

Throws NotSerializableException since JMetal algorithms are currently not serializable.

Specified by:

setState in interface Algorithm

Parameters:

state - the internal state of this algorithm

Throws:

NotSerializableException - if this algorithm does not support serialization