Package net.bmahe.genetics4j.moo.spea2.spec.replacement

Class ImmutableSPEA2Replacement.Builder<T extends Comparable<T>>

java.lang.Object

net.bmahe.genetics4j.moo.spea2.spec.replacement.ImmutableSPEA2Replacement.Builder<T>

Direct Known Subclasses:

SPEA2Replacement.Builder

Enclosing class:

ImmutableSPEA2Replacement<T extends Comparable<T>>

public static class ImmutableSPEA2Replacement.Builder<T extends Comparable<T>>
extends Object

Builds instances of type ImmutableSPEA2Replacement. Initialize attributes and then invoke the build() method to create an immutable instance.

Builder is not thread-safe and generally should not be stored in a field or collection, but instead used immediately to create instances.

Field Summary

Fields

Modifier and Type	Field	Description
private Optional<Comparator<Genotype>>	deduplicate
private BiFunction<T,T,Double>	distance
private Comparator<T>	dominance
private static final long	INIT_BIT_DISTANCE
private long	initBits
private Optional<Integer>	k

Constructor Summary

Constructors

Constructor	Description
Builder()	Creates a builder for ImmutableSPEA2Replacement instances.

Method Summary

Modifier and Type	Method	Description
ImmutableSPEA2Replacement<T>	build()	Builds a new ImmutableSPEA2Replacement.
final SPEA2Replacement.Builder<T>	deduplicate(Optional<Comparator<Genotype>> deduplicate)	Initializes the value for the deduplicate attribute.
final SPEA2Replacement.Builder<T>	distance(BiFunction<T,T,Double> distance)	Initializes the value for the distance attribute.
final SPEA2Replacement.Builder<T>	dominance(Comparator<T> dominance)	Initializes the value for the dominance attribute.
private String	formatRequiredAttributesMessage()
final SPEA2Replacement.Builder<T>	from(SPEA2Replacement<T> instance)	Fill a builder with attribute values from the provided SPEA2Replacement instance.
final SPEA2Replacement.Builder<T>	k(Optional<Integer> k)	Initializes the value for the k attribute.

Methods inherited from class java.lang.Object

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

Field Details

INIT_BIT_DISTANCE

private static final long INIT_BIT_DISTANCE

See Also:

• Constant Field Values

initBits

private long initBits

dominance

private Comparator<T extends Comparable<T>> dominance

deduplicate

private Optional<Comparator<Genotype>> deduplicate

k

private Optional<Integer> k

distance

private BiFunction<T extends Comparable<T>,T extends Comparable<T>,Double> distance

Constructor Details

Builder

public Builder()

Creates a builder for ImmutableSPEA2Replacement instances.

 new SPEA2Replacement.Builder<T>()
    .dominance(Comparator<T>) // optional dominance
    .deduplicate(Optional<Comparator<net.bmahe.genetics4j.core.Genotype>>) // optional deduplicate
    .k(Optional<Integer>) // optional k
    .distance(function.BiFunction<T, T, Double>) // required distance
    .build();
 

Method Details

from

public final SPEA2Replacement.Builder<T> from(SPEA2Replacement<T> instance)

Fill a builder with attribute values from the provided SPEA2Replacement instance. Regular attribute values will be replaced with those from the given instance. Absent optional values will not replace present values.

Parameters:

instance - The instance from which to copy values

Returns:

this builder for use in a chained invocation

dominance

public final SPEA2Replacement.Builder<T> dominance(Comparator<T> dominance)

Initializes the value for the dominance attribute.

If not set, this attribute will have a default value as returned by the initializer of dominance.

Parameters:

dominance - The value for dominance

Returns:

this builder for use in a chained invocation

deduplicate

public final SPEA2Replacement.Builder<T> deduplicate(Optional<Comparator<Genotype>> deduplicate)

Initializes the value for the deduplicate attribute.

If not set, this attribute will have a default value as returned by the initializer of deduplicate.

Parameters:

deduplicate - The value for deduplicate

Returns:

this builder for use in a chained invocation

k

public final SPEA2Replacement.Builder<T> k(Optional<Integer> k)

Initializes the value for the k attribute.

If not set, this attribute will have a default value as returned by the initializer of k.

Parameters:

k - The value for k

Returns:

this builder for use in a chained invocation

distance

public final SPEA2Replacement.Builder<T> distance(BiFunction<T,T,Double> distance)

Initializes the value for the distance attribute.

Parameters:

distance - The value for distance

Returns:

this builder for use in a chained invocation

build

public ImmutableSPEA2Replacement<T> build()

Builds a new ImmutableSPEA2Replacement.

Returns:

An immutable instance of SPEA2Replacement

Throws:

IllegalStateException - if any required attributes are missing

formatRequiredAttributesMessage

private String formatRequiredAttributesMessage()