Package org.openjdk.jmc.common.unit

Class BinaryScaleFactor

java.lang.Object

org.openjdk.jmc.common.unit.ScaleFactor

org.openjdk.jmc.common.unit.BinaryScaleFactor

All Implemented Interfaces:

Comparable<ScaleFactor>, IScalarAffineTransform

public class BinaryScaleFactor
extends ScaleFactor

Field Summary

Fields

Modifier and Type	Field	Description
protected int	powerOf2

Method Summary

Modifier and Type	Method	Description
StringBuilder	asExponentialStringBuilder(boolean multiplicationSign)
int	compareTo(ScaleFactor other)
ScaleFactor	concat(ScaleFactor innerFactor)	Concatenate (that is, multiply) this scale factor with innerFactor.
boolean	equals(Object other)
static BinaryScaleFactor	get(int powerOf2)
static BinaryScaleFactor	getFloor1024Factor(double value)
static BinaryScaleFactor	getFloor2Factor(long value)
double	getMultiplier()
int	hashCode()
BinaryScaleFactor	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

powerOf2

protected final int powerOf2

Method Detail

get

public static BinaryScaleFactor get(int powerOf2)

getFloor2Factor

public static BinaryScaleFactor getFloor2Factor(long value)

getFloor1024Factor

public static BinaryScaleFactor getFloor1024Factor(double value)

getMultiplier

public double getMultiplier()

Returns:

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

asExponentialStringBuilder

public 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 BinaryScaleFactor 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 Comparable<ScaleFactor>

Overrides:

compareTo in class ScaleFactor

equals

public boolean equals(Object other)

Specified by:

equals in class ScaleFactor

hashCode

public int hashCode()

Specified by:

hashCode in class ScaleFactor