Package net.bmahe.genetics4j.moo.nsga2.spec

Class ImmutableTournamentNSGA2Selection<T extends Comparable<T>>

java.lang.Object

net.bmahe.genetics4j.moo.nsga2.spec.TournamentNSGA2Selection<T>

net.bmahe.genetics4j.moo.nsga2.spec.ImmutableTournamentNSGA2Selection<T>

All Implemented Interfaces:

SelectionPolicy

@Generated("org.immutables.processor.ProxyProcessor")
public final class ImmutableTournamentNSGA2Selection<T extends Comparable<T>>
extends TournamentNSGA2Selection<T>

Immutable implementation of TournamentNSGA2Selection.

Use the builder to create immutable instances: new TournamentNSGA2Selection.Builder(). Use the static factory method to create immutable instances: ImmutableTournamentNSGA2Selection.of().

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ImmutableTournamentNSGA2Selection.Builder<T extends Comparable<T>>	Builds instances of type ImmutableTournamentNSGA2Selection.
private final class	ImmutableTournamentNSGA2Selection.InitShim

Field Summary

Fields

Modifier and Type	Field	Description
private final Optional<Comparator<Genotype>>	deduplicate
private final ObjectiveDistance<T>	distance
private final Comparator<T>	dominance
private ImmutableTournamentNSGA2Selection<T>.InitShim	initShim
private final int	numberObjectives
private final int	numCandidates
private final Function<Integer,Comparator<T>>	objectiveComparator
private static final byte	STAGE_INITIALIZED
private static final byte	STAGE_INITIALIZING
private static final byte	STAGE_UNINITIALIZED

Constructor Summary

Constructors

Modifier	Constructor	Description
private	ImmutableTournamentNSGA2Selection(int numberObjectives, Comparator<T> dominance, Optional<Comparator<Genotype>> deduplicate, Function<Integer,Comparator<T>> objectiveComparator, ObjectiveDistance<T> distance, int numCandidates)
private	ImmutableTournamentNSGA2Selection(int numberObjectives, Function<Integer,Comparator<T>> objectiveComparator, ObjectiveDistance<T> distance, int numCandidates)
private	ImmutableTournamentNSGA2Selection(ImmutableTournamentNSGA2Selection.Builder<T> builder)

Method Summary

Modifier and Type	Method	Description
static <T extends Comparable<T>> ImmutableTournamentNSGA2Selection<T>	copyOf(TournamentNSGA2Selection<T> instance)	Creates an immutable copy of a TournamentNSGA2Selection value.
Optional<Comparator<Genotype>>	deduplicate()	Comparator used for deduplication of solution prior to processing
ObjectiveDistance<T>	distance()	Define how to compute distances between fitness scores along their objectives
Comparator<T>	dominance()	Override the dominance operator.
boolean	equals(Object another)	This instance is equal to all instances of ImmutableTournamentNSGA2Selection that have equal attribute values.
private boolean	equalTo(int synthetic, ImmutableTournamentNSGA2Selection<?> another)
int	hashCode()	Computes a hash code from attributes: numberObjectives, dominance, deduplicate, objectiveComparator, distance, numCandidates.
int	numberObjectives()	Describe how many objectives are embedded in T
int	numCandidates()	Number of candidates in each tournament
Function<Integer,Comparator<T>>	objectiveComparator()	Sort T based on the objective passed as a parameter
static <T extends Comparable<T>> ImmutableTournamentNSGA2Selection<T>	of(int numberObjectives, Function<Integer,Comparator<T>> objectiveComparator, ObjectiveDistance<T> distance, int numCandidates)	Construct a new immutable TournamentNSGA2Selection instance.
String	toString()	Prints the immutable value TournamentNSGA2Selection with attribute values.
final ImmutableTournamentNSGA2Selection<T>	withDeduplicate(Optional<Comparator<Genotype>> value)	Copy the current immutable object by setting a value for the deduplicate attribute.
final ImmutableTournamentNSGA2Selection<T>	withDistance(ObjectiveDistance<T> value)	Copy the current immutable object by setting a value for the distance attribute.
final ImmutableTournamentNSGA2Selection<T>	withDominance(Comparator<T> value)	Copy the current immutable object by setting a value for the dominance attribute.
final ImmutableTournamentNSGA2Selection<T>	withNumberObjectives(int value)	Copy the current immutable object by setting a value for the numberObjectives attribute.
final ImmutableTournamentNSGA2Selection<T>	withNumCandidates(int value)	Copy the current immutable object by setting a value for the numCandidates attribute.
final ImmutableTournamentNSGA2Selection<T>	withObjectiveComparator(Function<Integer,Comparator<T>> value)	Copy the current immutable object by setting a value for the objectiveComparator attribute.

Methods inherited from class net.bmahe.genetics4j.moo.nsga2.spec.TournamentNSGA2Selection

builder, ofFitnessVector, ofFitnessVector

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

numberObjectives

private final int numberObjectives

dominance

private final Comparator<T extends Comparable<T>> dominance

deduplicate

private final Optional<Comparator<Genotype>> deduplicate

objectiveComparator

private final Function<Integer,Comparator<T extends Comparable<T>>> objectiveComparator

distance

private final ObjectiveDistance<T extends Comparable<T>> distance

numCandidates

private final int numCandidates

STAGE_INITIALIZING

private static final byte STAGE_INITIALIZING

See Also:

• Constant Field Values

STAGE_UNINITIALIZED

private static final byte STAGE_UNINITIALIZED

See Also:

• Constant Field Values

STAGE_INITIALIZED

private static final byte STAGE_INITIALIZED

See Also:

• Constant Field Values

initShim

private transient volatile ImmutableTournamentNSGA2Selection<T extends Comparable<T>>.InitShim initShim

Constructor Details

ImmutableTournamentNSGA2Selection

private ImmutableTournamentNSGA2Selection(int numberObjectives,
 Function<Integer,Comparator<T>> objectiveComparator,
 ObjectiveDistance<T> distance,
 int numCandidates)

ImmutableTournamentNSGA2Selection

private ImmutableTournamentNSGA2Selection(ImmutableTournamentNSGA2Selection.Builder<T> builder)

ImmutableTournamentNSGA2Selection

private ImmutableTournamentNSGA2Selection(int numberObjectives,
 Comparator<T> dominance,
 Optional<Comparator<Genotype>> deduplicate,
 Function<Integer,Comparator<T>> objectiveComparator,
 ObjectiveDistance<T> distance,
 int numCandidates)

Method Details

numberObjectives

public int numberObjectives()

Describe how many objectives are embedded in T

Specified by:

numberObjectives in class TournamentNSGA2Selection<T extends Comparable<T>>

Returns:

Number of objectives embedded in T

dominance

public Comparator<T> dominance()

Override the dominance operator.

If not specified, it assumes the default comparator conforms to the Pareto dominance relation

Overrides:

dominance in class TournamentNSGA2Selection<T extends Comparable<T>>

Returns:

deduplicate

public Optional<Comparator<Genotype>> deduplicate()

Comparator used for deduplication of solution prior to processing

If not specified, it defaults to not do any deduplication

Overrides:

deduplicate in class TournamentNSGA2Selection<T extends Comparable<T>>

Returns:

objectiveComparator

public Function<Integer,Comparator<T>> objectiveComparator()

Sort T based on the objective passed as a parameter

Specified by:

objectiveComparator in class TournamentNSGA2Selection<T extends Comparable<T>>

Returns:

distance

public ObjectiveDistance<T> distance()

Define how to compute distances between fitness scores along their objectives

Specified by:

distance in class TournamentNSGA2Selection<T extends Comparable<T>>

Returns:

Distance computation method

numCandidates

public int numCandidates()

Number of candidates in each tournament

Specified by:

numCandidates in class TournamentNSGA2Selection<T extends Comparable<T>>

Returns:

Number of candidates in each tournament

withNumberObjectives

public final ImmutableTournamentNSGA2Selection<T> withNumberObjectives(int value)

Copy the current immutable object by setting a value for the numberObjectives attribute. A value equality check is used to prevent copying of the same value by returning this.

Parameters:

value - A new value for numberObjectives

Returns:

A modified copy of the this object

withDominance

public final ImmutableTournamentNSGA2Selection<T> withDominance(Comparator<T> value)

Copy the current immutable object by setting a value for the dominance attribute. A shallow reference equality check is used to prevent copying of the same value by returning this.

Parameters:

value - A new value for dominance

Returns:

A modified copy of the this object

withDeduplicate

public final ImmutableTournamentNSGA2Selection<T> withDeduplicate(Optional<Comparator<Genotype>> value)

Copy the current immutable object by setting a value for the deduplicate attribute. An equals check used to prevent copying of the same value by returning this.

Parameters:

value - A new value for deduplicate

Returns:

A modified copy of the this object

withObjectiveComparator

public final ImmutableTournamentNSGA2Selection<T> withObjectiveComparator(Function<Integer,Comparator<T>> value)

Copy the current immutable object by setting a value for the objectiveComparator attribute. A shallow reference equality check is used to prevent copying of the same value by returning this.

Parameters:

value - A new value for objectiveComparator

Returns:

A modified copy of the this object

withDistance

public final ImmutableTournamentNSGA2Selection<T> withDistance(ObjectiveDistance<T> value)

Copy the current immutable object by setting a value for the distance attribute. A shallow reference equality check is used to prevent copying of the same value by returning this.

Parameters:

value - A new value for distance

Returns:

A modified copy of the this object

withNumCandidates

public final ImmutableTournamentNSGA2Selection<T> withNumCandidates(int value)

Copy the current immutable object by setting a value for the numCandidates attribute. A value equality check is used to prevent copying of the same value by returning this.

Parameters:

value - A new value for numCandidates

Returns:

A modified copy of the this object

equals

public boolean equals(Object another)

This instance is equal to all instances of ImmutableTournamentNSGA2Selection that have equal attribute values.

Overrides:

equals in class Object

Returns:

true if this is equal to another instance

equalTo

private boolean equalTo(int synthetic,
 ImmutableTournamentNSGA2Selection<?> another)

hashCode

public int hashCode()

Computes a hash code from attributes: numberObjectives, dominance, deduplicate, objectiveComparator, distance, numCandidates.

Overrides:

hashCode in class Object

Returns:

hashCode value

toString

public String toString()

Prints the immutable value TournamentNSGA2Selection with attribute values.

Overrides:

toString in class Object

Returns:

A string representation of the value

of

public static <T extends Comparable<T>>
ImmutableTournamentNSGA2Selection<T> of(int numberObjectives,
 Function<Integer,Comparator<T>> objectiveComparator,
 ObjectiveDistance<T> distance,
 int numCandidates)

Construct a new immutable TournamentNSGA2Selection instance.

Type Parameters:

T - generic parameter T

Parameters:

numberObjectives - The value for the numberObjectives attribute

objectiveComparator - The value for the objectiveComparator attribute

distance - The value for the distance attribute

numCandidates - The value for the numCandidates attribute

Returns:

An immutable TournamentNSGA2Selection instance

copyOf

public static <T extends Comparable<T>>
ImmutableTournamentNSGA2Selection<T> copyOf(TournamentNSGA2Selection<T> instance)

Creates an immutable copy of a TournamentNSGA2Selection value. Uses accessors to get values to initialize the new immutable instance. If an instance is already immutable, it is returned as is.

Type Parameters:

T - generic parameter T

Parameters:

instance - The instance to copy

Returns:

A copied immutable TournamentNSGA2Selection instance