HardSoftDoubleScore (OptaPlanner distribution 6.3.0.Beta1 API)

java.lang.Object
- org.optaplanner.core.api.score.AbstractScore<HardSoftDoubleScore>
- - org.optaplanner.core.api.score.buildin.hardsoftdouble.HardSoftDoubleScore

All Implemented Interfaces:

Serializable, Comparable<HardSoftDoubleScore>, FeasibilityScore<HardSoftDoubleScore>, Score<HardSoftDoubleScore>
```
public final class HardSoftDoubleScore
extends AbstractScore<HardSoftDoubleScore>
implements FeasibilityScore<HardSoftDoubleScore>
```
This 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.

See Also:
Score, Serialized Form

Method Summary

Methods
Modifier 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)`

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

Methods inherited from interface org.optaplanner.core.api.score.Score
isCompatibleArithmeticArgument

- Method Detail
  - parseScore
```
public static HardSoftDoubleScore parseScore(String scoreString)
```
  - valueOf
```
public static HardSoftDoubleScore valueOf(double hardScore,
                          double softScore)
```
  - getHardScore
```
public double getHardScore()
```
    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
  - getSoftScore
```
public double getSoftScore()
```
    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
  - isFeasible
```
public boolean isFeasible()
```
    Description copied from interface: FeasibilityScore
    
    A Solution is feasible if it has no broken hard constraints.
    
    Specified by:
    
    isFeasible in interface FeasibilityScore<HardSoftDoubleScore>
    
    Returns:
    true if the hard score is 0 or higher
  - add
```
public HardSoftDoubleScore add(HardSoftDoubleScore augment)
```
    Description copied from interface: Score
    
    Returns a Score whose value is (this + augment).
    
    Specified by:
    
    add in interface Score<HardSoftDoubleScore>
    
    Parameters:
    augment - value to be added to this Score
    
    Returns:
    this + augment
  - subtract
```
public HardSoftDoubleScore subtract(HardSoftDoubleScore subtrahend)
```
    Description copied from interface: Score
    
    Returns a Score whose value is (this - subtrahend).
    
    Specified by:
    
    subtract in interface Score<HardSoftDoubleScore>
    
    Parameters:
    subtrahend - value to be subtracted from this Score
    
    Returns:
    this - subtrahend, rounded as necessary
  - multiply
```
public HardSoftDoubleScore 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.
    
    Specified by:
    
    multiply in interface Score<HardSoftDoubleScore>
    
    Parameters:
    multiplicand - value to be multiplied by this Score.
    
    Returns:
    this * multiplicand
  - divide
```
public HardSoftDoubleScore 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.
    
    Specified by:
    
    divide in interface Score<HardSoftDoubleScore>
    
    Parameters:
    divisor - value by which this Score is to be divided
    
    Returns:
    this / divisor
  - power
```
public HardSoftDoubleScore 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.
    
    Specified by:
    
    power in interface Score<HardSoftDoubleScore>
    
    Parameters:
    exponent - value by which this Score is to be powered
    
    Returns:
    this ^ exponent
  - negate
```
public HardSoftDoubleScore negate()
```
    Description copied from interface: Score
    
    Returns a Score whose value is (- this).
    
    Specified by:
    
    negate in interface Score<HardSoftDoubleScore>
    
    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}
    
    Specified by:
    
    toLevelNumbers in interface Score<HardSoftDoubleScore>
    
    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(HardSoftDoubleScore other)
```
    Specified by:
    
    compareTo in interface Comparable<HardSoftDoubleScore>
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object

Class HardSoftDoubleScore

Method Summary

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

Methods inherited from class java.lang.Object

Methods inherited from interface org.optaplanner.core.api.score.Score

Method Detail

parseScore

valueOf

getHardScore

getSoftScore

isFeasible

add

subtract

multiply

divide

power

negate

toLevelNumbers

equals

hashCode

compareTo

toString