Package com.rosetta.model.lib

Class RosettaNumber

java.lang.Object

java.lang.Number

com.rosetta.model.lib.RosettaNumber

All Implemented Interfaces:

Serializable, Comparable<RosettaNumber>

public class RosettaNumber
extends Number
implements Comparable<RosettaNumber>

An implementation of the IEEE754 decimal128 standard. Under the hood, this class uses BigDecimal. Also see MathContext.DECIMAL128. (Actually, *almost* an implementation of the decimal128 standard. See section "Relation to IEEE 754 Decimal Arithmetic" in the BigDecimal documentation for edge cases: https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/math/BigDecimal.html ) Note that this class circumvents problems caused by a per-instance precision, like in BigDecimal. E.g., for equality, see https://stackoverflow.com/q/6787142/3083982

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static final MathContext	DECIMAL_PRECISION
static final RosettaNumber	ONE
static final RosettaNumber	ZERO

Constructor Summary

Constructors

Constructor	Description
RosettaNumber(String repr)

Method Summary

Modifier and Type	Method	Description
RosettaNumber	add(RosettaNumber other)
BigDecimal	bigDecimalValue()
BigInteger	bigIntegerValue()
int	compareTo(RosettaNumber o)
RosettaNumber	divide(RosettaNumber other)
double	doubleValue()
boolean	equals(Object object)
float	floatValue()
int	hashCode()
int	intValue()
long	longValue()
RosettaNumber	multiply(RosettaNumber other)
RosettaNumber	subtract(RosettaNumber other)
String	toString()
static RosettaNumber	valueOf(double value)
static RosettaNumber	valueOf(long value)
static RosettaNumber	valueOf(BigDecimal value)
static RosettaNumber	valueOf(BigInteger value)

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

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

Field Details

DECIMAL_PRECISION

public static final MathContext DECIMAL_PRECISION

ZERO

public static final RosettaNumber ZERO

ONE

public static final RosettaNumber ONE

Constructor Details

RosettaNumber

public RosettaNumber(String repr)

Method Details

valueOf

public static RosettaNumber valueOf(double value)

valueOf

public static RosettaNumber valueOf(long value)

valueOf

public static RosettaNumber valueOf(BigInteger value)

valueOf

public static RosettaNumber valueOf(BigDecimal value)

add

public RosettaNumber add(RosettaNumber other)

subtract

public RosettaNumber subtract(RosettaNumber other)

multiply

public RosettaNumber multiply(RosettaNumber other)

divide

public RosettaNumber divide(RosettaNumber other)

equals

public boolean equals(Object object)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object

intValue

public int intValue()

Specified by:

intValue in class Number

longValue

public long longValue()

Specified by:

longValue in class Number

floatValue

public float floatValue()

Specified by:

floatValue in class Number

doubleValue

public double doubleValue()

Specified by:

doubleValue in class Number

bigIntegerValue

public BigInteger bigIntegerValue()

bigDecimalValue

public BigDecimal bigDecimalValue()

compareTo

public int compareTo(RosettaNumber o)

Specified by:

compareTo in interface Comparable<RosettaNumber>