Class HardSoftBigDecimalScore
- java.lang.Object
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- ai.timefold.solver.core.api.score.buildin.hardsoftbigdecimal.HardSoftBigDecimalScore
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- All Implemented Interfaces:
Score<HardSoftBigDecimalScore>,Serializable,Comparable<HardSoftBigDecimalScore>
public final class HardSoftBigDecimalScore extends Object implements Score<HardSoftBigDecimalScore>
ThisScoreis based on 2 levels ofBigDecimalconstraints: hard and soft. Hard constraints have priority over soft constraints. Hard constraints determine feasibility.This class is immutable.
- See Also:
Score, Serialized Form
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Field Summary
Fields Modifier and Type Field Description static HardSoftBigDecimalScoreONE_HARDstatic HardSoftBigDecimalScoreONE_SOFTstatic HardSoftBigDecimalScoreZERO
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description HardSoftBigDecimalScoreabs()Returns a Score whose value is the absolute value of the score, i.e.HardSoftBigDecimalScoreadd(HardSoftBigDecimalScore addend)Returns a Score whose value is (this + addend).intcompareTo(HardSoftBigDecimalScore other)HardSoftBigDecimalScoredivide(double divisor)Returns a Score whose value is (this / divisor).booleanequals(Object o)BigDecimalgetHardScore()Deprecated, for removal: This API element is subject to removal in a future version.UsehardScore()instead.BigDecimalgetSoftScore()Deprecated, for removal: This API element is subject to removal in a future version.UsesoftScore()instead.BigDecimalhardScore()The total of the broken negative hard constraints and fulfilled positive hard constraints.inthashCode()intinitScore()The init score is the negative of the number of uninitialized genuine planning variables.booleanisFeasible()APlanningSolutionis feasible if it has no broken hard constraints andScore.isSolutionInitialized()is true.HardSoftBigDecimalScoremultiply(double multiplicand)Returns a Score whose value is (this * multiplicand).static HardSoftBigDecimalScoreof(BigDecimal hardScore, BigDecimal softScore)static HardSoftBigDecimalScoreofHard(BigDecimal hardScore)static HardSoftBigDecimalScoreofSoft(BigDecimal softScore)static HardSoftBigDecimalScoreofUninitialized(int initScore, BigDecimal hardScore, BigDecimal softScore)static HardSoftBigDecimalScoreparseScore(String scoreString)HardSoftBigDecimalScorepower(double exponent)Returns a Score whose value is (this ^ exponent).BigDecimalsoftScore()The total of the broken negative soft constraints and fulfilled positive soft constraints.HardSoftBigDecimalScoresubtract(HardSoftBigDecimalScore subtrahend)Returns a Score whose value is (this - subtrahend).Number[]toLevelNumbers()Returns an array of numbers representing the Score.StringtoShortString()LikeObject.toString(), but trims score levels which have a zero weight.StringtoString()HardSoftBigDecimalScorewithInitScore(int newInitScore)For example0hard/-8softwith-7returns-7init/0hard/-8soft.HardSoftBigDecimalScorezero()Returns a Score, all levels of which are zero.-
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface ai.timefold.solver.core.api.score.Score
getInitScore, isSolutionInitialized, isZero, negate, toLevelDoubles
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Field Detail
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ZERO
public static final HardSoftBigDecimalScore ZERO
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ONE_HARD
public static final HardSoftBigDecimalScore ONE_HARD
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ONE_SOFT
public static final HardSoftBigDecimalScore ONE_SOFT
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Method Detail
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parseScore
public static HardSoftBigDecimalScore parseScore(String scoreString)
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ofUninitialized
public static HardSoftBigDecimalScore ofUninitialized(int initScore, BigDecimal hardScore, BigDecimal softScore)
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of
public static HardSoftBigDecimalScore of(BigDecimal hardScore, BigDecimal softScore)
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ofHard
public static HardSoftBigDecimalScore ofHard(BigDecimal hardScore)
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ofSoft
public static HardSoftBigDecimalScore ofSoft(BigDecimal softScore)
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initScore
public int initScore()
Description copied from interface:ScoreThe init score is the negative of the number of uninitialized genuine planning variables. If it's 0 (which it usually is), thePlanningSolutionis fully initialized and the score'sObject.toString()does not mention it.During
Comparable.compareTo(Object), it's even more important than the hard score: if you don't want this behaviour, read about overconstrained planning in the reference manual.- Specified by:
initScorein interfaceScore<HardSoftBigDecimalScore>- Returns:
- higher is better, always negative (except in statistical calculations), 0 if all planning variables are initialized
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hardScore
public BigDecimal hardScore()
The total of the broken negative hard constraints and fulfilled positive hard constraints. Their weight is included in the total. The hard score is usually a negative number because most use cases only have negative constraints.- Returns:
- higher is better, usually negative, 0 if no hard constraints are broken/fulfilled
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getHardScore
@Deprecated(forRemoval=true) public BigDecimal getHardScore()
Deprecated, for removal: This API element is subject to removal in a future version.UsehardScore()instead.As defined byhardScore().
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softScore
public BigDecimal softScore()
The total of the broken negative soft constraints and fulfilled positive soft constraints. Their weight is included in the total. The soft score is usually a negative number because most use cases only have negative constraints.In a normal score comparison, the soft score is irrelevant if the 2 scores don't have the same hard score.
- Returns:
- higher is better, usually negative, 0 if no soft constraints are broken/fulfilled
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getSoftScore
@Deprecated(forRemoval=true) public BigDecimal getSoftScore()
Deprecated, for removal: This API element is subject to removal in a future version.UsesoftScore()instead.As defined bysoftScore().
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withInitScore
public HardSoftBigDecimalScore withInitScore(int newInitScore)
Description copied from interface:ScoreFor example0hard/-8softwith-7returns-7init/0hard/-8soft.- Specified by:
withInitScorein interfaceScore<HardSoftBigDecimalScore>- Parameters:
newInitScore- always negative (except in statistical calculations), 0 if all planning variables are initialized- Returns:
- equals score except that
Score.initScore()is set tonewInitScore
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isFeasible
public boolean isFeasible()
Description copied from interface:ScoreAPlanningSolutionis feasible if it has no broken hard constraints andScore.isSolutionInitialized()is true. Simple scores (SimpleScore,SimpleLongScore,SimpleBigDecimalScore) are always feasible, if theirScore.initScore()is 0.- Specified by:
isFeasiblein interfaceScore<HardSoftBigDecimalScore>- Returns:
- true if the hard score is 0 or higher and the
Score.initScore()is 0.
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add
public HardSoftBigDecimalScore add(HardSoftBigDecimalScore addend)
Description copied from interface:ScoreReturns a Score whose value is (this + addend).- Specified by:
addin interfaceScore<HardSoftBigDecimalScore>- Parameters:
addend- value to be added to this Score- Returns:
- this + addend
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subtract
public HardSoftBigDecimalScore subtract(HardSoftBigDecimalScore subtrahend)
Description copied from interface:ScoreReturns a Score whose value is (this - subtrahend).- Specified by:
subtractin interfaceScore<HardSoftBigDecimalScore>- Parameters:
subtrahend- value to be subtracted from this Score- Returns:
- this - subtrahend, rounded as necessary
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multiply
public HardSoftBigDecimalScore multiply(double multiplicand)
Description copied from interface:ScoreReturns a Score whose value is (this * multiplicand). When rounding is needed, it should be floored (as defined byMath.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.
- Specified by:
multiplyin interfaceScore<HardSoftBigDecimalScore>- Parameters:
multiplicand- value to be multiplied by this Score.- Returns:
- this * multiplicand
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divide
public HardSoftBigDecimalScore divide(double divisor)
Description copied from interface:ScoreReturns a Score whose value is (this / divisor). When rounding is needed, it should be floored (as defined byMath.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.
- Specified by:
dividein interfaceScore<HardSoftBigDecimalScore>- Parameters:
divisor- value by which this Score is to be divided- Returns:
- this / divisor
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power
public HardSoftBigDecimalScore power(double exponent)
Description copied from interface:ScoreReturns a Score whose value is (this ^ exponent). When rounding is needed, it should be floored (as defined byMath.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.
- Specified by:
powerin interfaceScore<HardSoftBigDecimalScore>- Parameters:
exponent- value by which this Score is to be powered- Returns:
- this ^ exponent
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abs
public HardSoftBigDecimalScore abs()
Description copied from interface:ScoreReturns a Score whose value is the absolute value of the score, i.e. |this|.- Specified by:
absin interfaceScore<HardSoftBigDecimalScore>- Returns:
- never null
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zero
public HardSoftBigDecimalScore zero()
Description copied from interface:ScoreReturns a Score, all levels of which are zero.- Specified by:
zeroin interfaceScore<HardSoftBigDecimalScore>- Returns:
- never null
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toLevelNumbers
public Number[] toLevelNumbers()
Description copied from interface:ScoreReturns 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 specificScoreimplementation.For example:
-0hard/-7softreturnsnew int{-0, -7}The level numbers do not contain the
Score.initScore(). For example:-3init/-0hard/-7softalso returnsnew int{-0, -7}- Specified by:
toLevelNumbersin interfaceScore<HardSoftBigDecimalScore>- Returns:
- never null
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compareTo
public int compareTo(HardSoftBigDecimalScore other)
- Specified by:
compareToin interfaceComparable<HardSoftBigDecimalScore>
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toShortString
public String toShortString()
Description copied from interface:ScoreLikeObject.toString(), but trims score levels which have a zero weight. For example 0hard/-258soft returns -258soft.Do not use this format to persist information as text, use
Object.toString()instead, so it can be parsed reliably.- Specified by:
toShortStringin interfaceScore<HardSoftBigDecimalScore>- Returns:
- never null
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