org.openjdk.jmc.common.unit

Class DecimalScaleFactor

java.lang.Object

org.openjdk.jmc.common.unit.ScaleFactor

org.openjdk.jmc.common.unit.DecimalScaleFactor

All Implemented Interfaces:

java.lang.Comparable<ScaleFactor>, IScalarAffineTransform

Direct Known Subclasses:

DecimalScaleFactor.DownSmall, DecimalScaleFactor.Unity, DecimalScaleFactor.UpSmall

public class DecimalScaleFactor
extends ScaleFactor

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	DecimalScaleFactor.Cache
private static class	DecimalScaleFactor.DownSmall
private static class	DecimalScaleFactor.Unity
private static class	DecimalScaleFactor.UpSmall

Field Summary

Fields

Modifier and Type	Field and Description
(package private) int	powerOf10
private static char[]	SUPERSCRIPT_DIGITS
private static char	SUPERSCRIPT_MINUS

Constructor Summary

Constructors

Constructor and Description
DecimalScaleFactor(int powerOf10)

Method Summary

Modifier and Type	Method and Description
static void	appendExponentTo(int exp, java.lang.StringBuilder out)
java.lang.StringBuilder	asExponentialStringBuilder(boolean multiplicationSign)
int	compareTo(ScaleFactor other)
ScaleFactor	concat(ScaleFactor innerFactor) Concatenate (that is, multiply) this scale factor with innerFactor.
boolean	equals(java.lang.Object other)
static DecimalScaleFactor	get(int powerOf10)
static DecimalScaleFactor	getEngFloorFactor(double value)
double	getMultiplier()
static DecimalScaleFactor	getSciFloorFactor(double value)
int	hashCode()
DecimalScaleFactor	invert()
boolean	isInteger()
boolean	isUnity()
long	targetFloor(long srcNumericalValue)
boolean	targetOutOfRange(double srcNumericalValue, long maxAbsValue)
boolean	targetOutOfRange(long srcNumericalValue, long maxAbsValue)
double	targetValue(double srcNumericalValue)
long	targetValue(long srcNumericalValue)

Methods inherited from class org.openjdk.jmc.common.unit.ScaleFactor

concat, getOffset, invertAndConcat, invertAndConcat, targetFloor, targetIntFloor, targetNumber, targetNumber

Methods inherited from class java.lang.Object

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

Field Detail

powerOf10

final int powerOf10

SUPERSCRIPT_MINUS

private static final char SUPERSCRIPT_MINUS

See Also:

Constant Field Values

SUPERSCRIPT_DIGITS

private static final char[] SUPERSCRIPT_DIGITS

Constructor Detail

DecimalScaleFactor

public DecimalScaleFactor(int powerOf10)

Method Detail

appendExponentTo

public static void appendExponentTo(int exp,
                                    java.lang.StringBuilder out)

get

public static DecimalScaleFactor get(int powerOf10)

getSciFloorFactor

public static DecimalScaleFactor getSciFloorFactor(double value)

getEngFloorFactor

public static DecimalScaleFactor getEngFloorFactor(double value)

getMultiplier

public double getMultiplier()

Returns:

the multiplier which source values should be multiplied with (before the offset is added)

asExponentialStringBuilder

public java.lang.StringBuilder asExponentialStringBuilder(boolean multiplicationSign)

targetOutOfRange

public boolean targetOutOfRange(long srcNumericalValue,
                                long maxAbsValue)

targetOutOfRange

public boolean targetOutOfRange(double srcNumericalValue,
                                long maxAbsValue)

targetValue

public long targetValue(long srcNumericalValue)

Parameters:

srcNumericalValue - a numerical quantity value, expressed in the source unit

Returns:

the corresponding numerical quantity value, when expressed in the target unit, rounded to the closest integer that can be represented by a long

targetFloor

public long targetFloor(long srcNumericalValue)

Parameters:

srcNumericalValue - a numerical quantity value, expressed in the source unit

Returns:

the floor of the corresponding numerical quantity value, when expressed in the target unit, clamped to a long

targetValue

public double targetValue(double srcNumericalValue)

Parameters:

srcNumericalValue - a numerical quantity value, expressed in the source unit

Returns:

the corresponding numerical quantity value, when expressed in the target unit

isUnity

public boolean isUnity()

Returns:

true iff this represents the identity transform

isInteger

public boolean isInteger()

Returns:

true iff this transform can exactly be described by an integer multiplier followed by an integer offset

concat

public ScaleFactor concat(ScaleFactor innerFactor)

Description copied from class: ScaleFactor

Concatenate (that is, multiply) this scale factor with innerFactor. This is just a special case of ScaleFactor.concat(IScalarAffineTransform).

Specified by:

concat in class ScaleFactor

Returns:

the combined scale factor

See Also:

ScaleFactor.concat(IScalarAffineTransform)

invert

public DecimalScaleFactor invert()

Specified by:

invert in interface IScalarAffineTransform

Specified by:

invert in class ScaleFactor

Returns:

the inverse transform

compareTo

public int compareTo(ScaleFactor other)

Specified by:

compareTo in interface java.lang.Comparable<ScaleFactor>

Overrides:

compareTo in class ScaleFactor

equals

public boolean equals(java.lang.Object other)

Specified by:

equals in class ScaleFactor

hashCode

public int hashCode()

Specified by:

hashCode in class ScaleFactor