org.moeaframework.analysis.collector
Class ApproximationSetCollector

java.lang.Object
  org.moeaframework.analysis.collector.ApproximationSetCollector

All Implemented Interfaces:

Collector

public class ApproximationSetCollector
extends Object
implements Collector

Collects approximation sets from an Algorithm.

Constructor Summary

ApproximationSetCollector()
Constructs an unattached collector for recording Pareto dominance approximation sets from an algorithm.

ApproximationSetCollector(Algorithm algorithm, double[] epsilon)
Constructs a collector for recording approximation sets from the specified algorithm.

ApproximationSetCollector(double epsilon)
Constructs an unattached collector for recording ε-box dominance approximation sets from an algorithm.

ApproximationSetCollector(double[] epsilon)
Constructs an unattached collector for recording ε-box dominance approximation sets from an algorithm.

Method Summary

Collector	attach(Object object) Returns a new instance of this collector which has been attached to the specified object as identified by the attach point returned through Collector.getAttachPoint().
void	collect(Accumulator accumulator) Collects the necessary information from the object, storing the data to the specified accumulator.
AttachPoint	getAttachPoint() Returns the attach point describing where this collector is attached.

Methods inherited from class java.lang.Object

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

Constructor Detail

ApproximationSetCollector

public ApproximationSetCollector()

Constructs an unattached collector for recording Pareto dominance approximation sets from an algorithm.

ApproximationSetCollector

public ApproximationSetCollector(double epsilon)

Constructs an unattached collector for recording ε-box dominance approximation sets from an algorithm.

Parameters:

epsilon - the ε value

ApproximationSetCollector

public ApproximationSetCollector(double[] epsilon)

Constructs an unattached collector for recording ε-box dominance approximation sets from an algorithm.

Parameters:

epsilon - the ε values

ApproximationSetCollector

public ApproximationSetCollector(Algorithm algorithm,
                                 double[] epsilon)

Constructs a collector for recording approximation sets from the specified algorithm.

Parameters:

algorithm - the algorithm this collector records data from

epsilon - the ε-values used when collecting only the ε-dominant solutions; or null if regular Pareto dominance is used

Method Detail

getAttachPoint

public AttachPoint getAttachPoint()

Description copied from interface: Collector

Returns the attach point describing where this collector is attached. The matched object should be unique.

Specified by:

getAttachPoint in interface Collector

Returns:

the attach point describing where this collector is attached

attach

public Collector attach(Object object)

Description copied from interface: Collector

Returns a new instance of this collector which has been attached to the specified object as identified by the attach point returned through Collector.getAttachPoint().

Specified by:

attach in interface Collector

Parameters:

object - the matching object

Returns:

a new instance of this collector which has been attached to the specified object

collect

public void collect(Accumulator accumulator)

Description copied from interface: Collector

Collects the necessary information from the object, storing the data to the specified accumulator. This method must only be invoked after this collector has been attached to an appropriate object.

Specified by:

collect in interface Collector

Parameters:

accumulator - the accumulator to which the collected data is stored