public final class SimpleDoubleScore extends AbstractScore<SimpleDoubleScore>
Score
is based on 1 level of double 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 SimpleBigDecimalScore
instead.
This class is immutable.
Score
,
Serialized FormModifier and Type | Field and Description |
---|---|
static SimpleDoubleScore |
ONE |
static SimpleDoubleScore |
ZERO |
INIT_LABEL, initScore
Modifier and Type | Method and Description |
---|---|
SimpleDoubleScore |
add(SimpleDoubleScore addend)
Returns a Score whose value is (this + addend).
|
int |
compareTo(SimpleDoubleScore other) |
SimpleDoubleScore |
divide(double divisor)
Returns a Score whose value is (this / divisor).
|
boolean |
equals(Object o) |
double |
getScore()
The total of the broken negative constraints and fulfilled positive constraints.
|
int |
hashCode() |
boolean |
isCompatibleArithmeticArgument(Score otherScore) |
SimpleDoubleScore |
multiply(double multiplicand)
Returns a Score whose value is (this * multiplicand).
|
SimpleDoubleScore |
negate()
Returns a Score whose value is (- this).
|
static SimpleDoubleScore |
of(double score) |
static SimpleDoubleScore |
ofUninitialized(int initScore,
double score) |
static SimpleDoubleScore |
parseScore(String scoreString) |
SimpleDoubleScore |
power(double exponent)
Returns a Score whose value is (this ^ exponent).
|
SimpleDoubleScore |
subtract(SimpleDoubleScore subtrahend)
Returns a Score whose value is (this - subtrahend).
|
SimpleDoubleScore |
toInitializedScore()
For example
-7init/0hard/-8soft returns 0hard/-8soft . |
Number[] |
toLevelNumbers()
Returns an array of numbers representing the Score.
|
String |
toShortString()
Like
Object.toString() , but trims score levels which have a zero weight. |
String |
toString() |
static SimpleDoubleScore |
valueOf(double score)
Deprecated.
in favor of
of(double) |
static SimpleDoubleScore |
valueOfUninitialized(int initScore,
double score)
Deprecated.
in favor of
ofUninitialized(int, double) |
SimpleDoubleScore |
withInitScore(int newInitScore)
For example
0hard/-8soft with -7 returns -7init/0hard/-8soft . |
assertNoInitScore, buildScorePattern, buildShortString, getInitPrefix, getInitScore, isSolutionInitialized, parseInitScore, parseLevelAsBigDecimal, parseLevelAsDouble, parseLevelAsInt, parseLevelAsLong, parseScoreTokens
public static final SimpleDoubleScore ZERO
public static final SimpleDoubleScore ONE
public static SimpleDoubleScore parseScore(String scoreString)
public static SimpleDoubleScore ofUninitialized(int initScore, double score)
@Deprecated public static SimpleDoubleScore valueOfUninitialized(int initScore, double score)
ofUninitialized(int, double)
public static SimpleDoubleScore of(double score)
@Deprecated public static SimpleDoubleScore valueOf(double score)
of(double)
public double getScore()
public SimpleDoubleScore toInitializedScore()
Score
-7init/0hard/-8soft
returns 0hard/-8soft
.Score.getInitScore()
is 0
.public SimpleDoubleScore withInitScore(int newInitScore)
Score
0hard/-8soft
with -7
returns -7init/0hard/-8soft
.newInitScore
- always negative (except in statistical calculations), 0 if all planning variables are initializedScore.getInitScore()
is set to newInitScore
public SimpleDoubleScore add(SimpleDoubleScore addend)
Score
addend
- value to be added to this Scorepublic SimpleDoubleScore subtract(SimpleDoubleScore subtrahend)
Score
subtrahend
- value to be subtracted from this Scorepublic SimpleDoubleScore 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.
multiplicand
- value to be multiplied by this Score.public SimpleDoubleScore 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.
divisor
- value by which this Score is to be dividedpublic SimpleDoubleScore 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.
exponent
- value by which this Score is to be poweredpublic SimpleDoubleScore negate()
Score
public Number[] toLevelNumbers()
Score
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}
The level numbers do not contain the Score.getInitScore()
.
For example: -3init/-0hard/-7soft
also returns new int{-0, -7}
ScoreDefinition.fromLevelNumbers(int, Number[])
public int compareTo(SimpleDoubleScore other)
public String toShortString()
Score
Object.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.
public boolean isCompatibleArithmeticArgument(Score otherScore)
otherScore
- never nullScore.add(Score)
, Score.subtract(Score)
and Comparable.compareTo(Object)
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