Package org.optaplanner.core.config.score.trend

Enum InitializingScoreTrendLevel

java.lang.Object

java.lang.Enum<InitializingScoreTrendLevel>

org.optaplanner.core.config.score.trend.InitializingScoreTrendLevel

All Implemented Interfaces:

Serializable, Comparable<InitializingScoreTrendLevel>

public enum InitializingScoreTrendLevel
extends Enum<InitializingScoreTrendLevel>

Bounds 1 score level of the possible Scores for a PlanningSolution as more and more variables are initialized (while the already initialized variables don't change).

See Also:

• InitializingScoreTrend

Enum Constant Summary

Enum Constants

Enum Constant	Description
ANY	No predictions can be made.
ONLY_DOWN	During initialization, the Score is monotonically decreasing.
ONLY_UP	During initialization, the Score is monotonically increasing.

Method Summary

Modifier and Type	Method	Description
static InitializingScoreTrendLevel	valueOf(String name)	Returns the enum constant of this type with the specified name.
static InitializingScoreTrendLevel[]	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 Details

ANY

public static final InitializingScoreTrendLevel ANY

No predictions can be made.

ONLY_UP

public static final InitializingScoreTrendLevel ONLY_UP

During initialization, the Score is monotonically increasing. This means: given a non-fully initialized PlanningSolution with a Score A, initializing 1 or more variables (without altering the already initialized variables) will give a PlanningSolution for which the Score is better or equal to A.

In practice, this means that the score constraints of this score level are all positive, and initializing a variable cannot unmatch an already matched positive constraint.

Also implies the perfect minimum score is 0.

ONLY_DOWN

public static final InitializingScoreTrendLevel ONLY_DOWN

During initialization, the Score is monotonically decreasing. This means: given a non-fully initialized PlanningSolution with a Score A, initializing 1 or more variables (without altering the already initialized variables) will give a PlanningSolution for which the Score is worse or equal to A.

In practice, this means that the score constraints of this score level are all negative, and initializing a variable cannot unmatch an already matched negative constraint.

Also implies the perfect maximum score is 0.

Method Details

values

public static InitializingScoreTrendLevel[] values()

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

Returns:

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

valueOf

public static InitializingScoreTrendLevel 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