Package org.optaplanner.core.config.heuristic.selector.common.nearby

Enum NearbySelectionDistributionType

java.lang.Object

java.lang.Enum<NearbySelectionDistributionType>

org.optaplanner.core.config.heuristic.selector.common.nearby.NearbySelectionDistributionType

All Implemented Interfaces:

Serializable, Comparable<NearbySelectionDistributionType>

public enum NearbySelectionDistributionType
extends Enum<NearbySelectionDistributionType>

Enum Constant Summary

Enum Constants

Enum Constant	Description
BETA_DISTRIBUTION	Selection according to a beta distribution.
BLOCK_DISTRIBUTION	Only the n nearest are selected, with an equal probability.
LINEAR_DISTRIBUTION	Nearest elements are selected with a higher probability.
PARABOLIC_DISTRIBUTION	Nearest elements are selected with a higher probability.

Method Summary

Modifier and Type	Method	Description
static NearbySelectionDistributionType	valueOf(String name)	Returns the enum constant of this type with the specified name.
static NearbySelectionDistributionType[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

BLOCK_DISTRIBUTION

public static final NearbySelectionDistributionType BLOCK_DISTRIBUTION

Only the n nearest are selected, with an equal probability.

LINEAR_DISTRIBUTION

public static final NearbySelectionDistributionType LINEAR_DISTRIBUTION

Nearest elements are selected with a higher probability. The probability decreases linearly.

PARABOLIC_DISTRIBUTION

public static final NearbySelectionDistributionType PARABOLIC_DISTRIBUTION

Nearest elements are selected with a higher probability. The probability decreases quadratically.

BETA_DISTRIBUTION

public static final NearbySelectionDistributionType BETA_DISTRIBUTION

Selection according to a beta distribution. Slows down the solver significantly.

Method Detail

values

public static NearbySelectionDistributionType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (NearbySelectionDistributionType c : NearbySelectionDistributionType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static NearbySelectionDistributionType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null