org.optaplanner.core.api.score.buildin.simplelong
Class SimpleLongScore

java.lang.Object
  org.optaplanner.core.api.score.AbstractScore<SimpleLongScore>
      org.optaplanner.core.api.score.buildin.simplelong.SimpleLongScore

All Implemented Interfaces:

Serializable, Comparable<SimpleLongScore>, Score<SimpleLongScore>

public final class SimpleLongScore
extends AbstractScore<SimpleLongScore>

This Score is based on 1 level of long constraints.

This class is immutable.

See Also:

Score, Serialized Form

Method Summary

SimpleLongScore	add(SimpleLongScore augment) Returns a Score whose value is (this + augment).
int	compareTo(SimpleLongScore other)
SimpleLongScore	divide(double divisor) Returns a Score whose value is (this / divisor).
boolean	equals(Object o)
long	getScore() The total of the broken negative constraints and fulfilled positive hard constraints.
int	hashCode()
SimpleLongScore	multiply(double multiplicand) Returns a Score whose value is (this * multiplicand).
SimpleLongScore	negate() Returns a Score whose value is (- this).
static SimpleLongScore	parseScore(String scoreString)
SimpleLongScore	power(double exponent) Returns a Score whose value is (this ^ exponent).
SimpleLongScore	subtract(SimpleLongScore subtrahend) Returns a Score whose value is (this - subtrahend).
Number[]	toLevelNumbers() Returns an array of numbers representing the Score.
String	toString()
static SimpleLongScore	valueOf(long score)

Methods inherited from class org.optaplanner.core.api.score.AbstractScore

buildScorePattern, buildScorePattern, isCompatibleArithmeticArgument, parseLevelAsBigDecimal, parseLevelAsDouble, parseLevelAsInt, parseLevelAsLong, parseLevelStrings, parseLevelStrings

Methods inherited from class java.lang.Object

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

Method Detail

parseScore

public static SimpleLongScore parseScore(String scoreString)

valueOf

public static SimpleLongScore valueOf(long score)

getScore

public long getScore()

The total of the broken negative constraints and fulfilled positive hard constraints. Their weight is included in the total. The score is usually a negative number because most use cases only have negative constraints.

Returns:

higher is better, usually negative, 0 if no constraints are broken/fulfilled

add

public SimpleLongScore add(SimpleLongScore augment)

Description copied from interface: Score

Returns a Score whose value is (this + augment).

Parameters:

augment - value to be added to this Score

Returns:

this + augment

subtract

public SimpleLongScore subtract(SimpleLongScore subtrahend)

Description copied from interface: Score

Returns a Score whose value is (this - subtrahend).

Parameters:

subtrahend - value to be subtracted from this Score

Returns:

this - subtrahend, rounded as necessary

multiply

public SimpleLongScore multiply(double multiplicand)

Description copied from interface: Score

Returns a Score whose value is (this * multiplicand). When rounding is needed, it should be floored (as defined by Math.floor(double).

/> If the implementation has a scale/precision, then the unspecified scale/precision of the double multiplicand should have no impact on the returned scale/precision.

Parameters:

multiplicand - value to be multiplied by this Score.

Returns:

this * multiplicand

divide

public SimpleLongScore divide(double divisor)

Description copied from interface: Score

Returns a Score whose value is (this / divisor). When rounding is needed, it should be floored (as defined by Math.floor(double).

/> If the implementation has a scale/precision, then the unspecified scale/precision of the double divisor should have no impact on the returned scale/precision.

Parameters:

divisor - value by which this Score is to be divided

Returns:

this / divisor

power

public SimpleLongScore power(double exponent)

Description copied from interface: Score

Returns a Score whose value is (this ^ exponent). When rounding is needed, it should be floored (as defined by Math.floor(double).

/> If the implementation has a scale/precision, then the unspecified scale/precision of the double exponent should have no impact on the returned scale/precision.

Parameters:

exponent - value by which this Score is to be powered

Returns:

this ^ exponent

negate

public SimpleLongScore negate()

Description copied from interface: Score

Returns a Score whose value is (- this).

Returns:

- this

toLevelNumbers

public Number[] toLevelNumbers()

Description copied from interface: Score

Returns an array of numbers representing the Score. Each number represents 1 score level. A greater score level uses a lower array index than a lesser score level.

When rounding is needed, each rounding should be floored (as defined by Math.floor(double). The length of the returned array must be stable for a specific Score implementation.

For example: -0hard/-7soft returns new int{-0, -7}

Returns:

never null

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(SimpleLongScore other)

toString

public String toString()

Overrides:

toString in class Object