public final class HardSoftDoubleScore extends AbstractScore<HardSoftDoubleScore> implements FeasibilityScore<HardSoftDoubleScore>
Score
is based on 2 levels of double constraints: hard and soft.
Hard constraints have priority over soft constraints.
WARNING: NOT RECOMMENDED TO USE DUE TO ROUNDING ERRORS THAT CAUSE SCORE CORRUPTION.
For example, this prints false: System.out.println((0.01 + 0.05) == (0.01 + 0.02 + 0.03));
Use HardSoftBigDecimalScore
instead.
This class is immutable.Score
,
Serialized FormModifier and Type | Method and Description |
---|---|
HardSoftDoubleScore |
add(HardSoftDoubleScore augment)
Returns a Score whose value is (this + augment).
|
int |
compareTo(HardSoftDoubleScore other) |
HardSoftDoubleScore |
divide(double divisor)
Returns a Score whose value is (this / divisor).
|
boolean |
equals(Object o) |
double |
getHardScore()
The total of the broken negative hard constraints and fulfilled positive hard constraints.
|
double |
getSoftScore()
The total of the broken negative soft constraints and fulfilled positive soft constraints.
|
int |
hashCode() |
boolean |
isFeasible()
A
Solution is feasible if it has no broken hard constraints. |
HardSoftDoubleScore |
multiply(double multiplicand)
Returns a Score whose value is (this * multiplicand).
|
HardSoftDoubleScore |
negate()
Returns a Score whose value is (- this).
|
static HardSoftDoubleScore |
parseScore(String scoreString) |
HardSoftDoubleScore |
power(double exponent)
Returns a Score whose value is (this ^ exponent).
|
HardSoftDoubleScore |
subtract(HardSoftDoubleScore subtrahend)
Returns a Score whose value is (this - subtrahend).
|
Number[] |
toLevelNumbers()
Returns an array of numbers representing the Score.
|
String |
toString() |
static HardSoftDoubleScore |
valueOf(double hardScore,
double softScore) |
buildScorePattern, buildScorePattern, isCompatibleArithmeticArgument, parseLevelAsBigDecimal, parseLevelAsDouble, parseLevelAsInt, parseLevelAsLong, parseLevelStrings, parseLevelStrings
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
isCompatibleArithmeticArgument
public static HardSoftDoubleScore parseScore(String scoreString)
public static HardSoftDoubleScore valueOf(double hardScore, double softScore)
public double getHardScore()
public double getSoftScore()
public boolean isFeasible()
FeasibilityScore
Solution
is feasible if it has no broken hard constraints.isFeasible
in interface FeasibilityScore<HardSoftDoubleScore>
public HardSoftDoubleScore add(HardSoftDoubleScore augment)
Score
add
in interface Score<HardSoftDoubleScore>
augment
- value to be added to this Scorepublic HardSoftDoubleScore subtract(HardSoftDoubleScore subtrahend)
Score
subtract
in interface Score<HardSoftDoubleScore>
subtrahend
- value to be subtracted from this Scorepublic HardSoftDoubleScore multiply(double multiplicand)
Score
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.
multiply
in interface Score<HardSoftDoubleScore>
multiplicand
- value to be multiplied by this Score.public HardSoftDoubleScore divide(double divisor)
Score
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.
divide
in interface Score<HardSoftDoubleScore>
divisor
- value by which this Score is to be dividedpublic HardSoftDoubleScore power(double exponent)
Score
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.
power
in interface Score<HardSoftDoubleScore>
exponent
- value by which this Score is to be poweredpublic HardSoftDoubleScore negate()
Score
negate
in interface Score<HardSoftDoubleScore>
public Number[] toLevelNumbers()
Score
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}toLevelNumbers
in interface Score<HardSoftDoubleScore>
public int compareTo(HardSoftDoubleScore other)
compareTo
in interface Comparable<HardSoftDoubleScore>
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