Class ExpConverter

java.lang.Object

tech.units.indriya.AbstractConverter

tech.units.indriya.function.ExpConverter

All Implemented Interfaces:

Serializable, Comparable<javax.measure.UnitConverter>, javax.measure.UnitConverter, tech.uom.lib.common.function.ValueSupplier<String>

public final class ExpConverter
extends AbstractConverter
implements tech.uom.lib.common.function.ValueSupplier<String>

This class represents a exponential converter of limited precision. Such converter is used to create inverse of logarithmic unit.

This class is package private, instances are created using the AbstractConverter.inverse() method.

Since:

1.0

Version:

1.3, April 26, 2018

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class AbstractConverter

AbstractConverter.Pair

Field Summary

Fields

Modifier and Type	Field	Description
private final double	base	Holds the logarithmic base.
private final double	logOfBase	Holds the natural logarithm of the base.
private static final long	serialVersionUID

Fields inherited from class AbstractConverter

conversionSteps, IDENTITY

Constructor Summary

Constructors

Constructor	Description
ExpConverter(double base)	Creates a logarithmic converter having the specified base.

Method Summary

Modifier and Type	Method	Description
int	compareTo(javax.measure.UnitConverter o)
double	convertWhenNotIdentity(double amount)	Non-API
BigDecimal	convertWhenNotIdentity(BigDecimal value, MathContext ctx)	Non-API
boolean	equals(Object obj)
double	getBase()	Returns the exponential base of this converter.
String	getValue()
int	hashCode()
AbstractConverter	inverseWhenNotIdentity()	Non-API
boolean	isIdentity()
boolean	isLinear()
protected boolean	isSimpleCompositionWith(AbstractConverter that)	Non-API Guard for AbstractConverter.simpleCompose(AbstractConverter)
static ExpConverter	of(double base)	Creates a logarithmic converter having the specified base.
protected AbstractConverter	simpleCompose(AbstractConverter that)	Non-API Guarded by AbstractConverter.isSimpleCompositionWith(AbstractConverter)
final String	transformationLiteral()	Non-API

Methods inherited from class AbstractConverter

concatenate, convert, convert, convertWhenNotIdentity, getConversionSteps, inverse, of, toString

Methods inherited from class Object

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

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

base

private final double base

Holds the logarithmic base.

logOfBase

private final double logOfBase

Holds the natural logarithm of the base.

Constructor Details

ExpConverter

public ExpConverter(double base)

Creates a logarithmic converter having the specified base.

Parameters:

base - the logarithmic base (e.g. Math.E for the Natural Logarithm).

Method Details

of

public static ExpConverter of(double base)

Creates a logarithmic converter having the specified base.

Parameters:

base - the logarithmic base (e.g. Math.E for the Natural Logarithm).

getBase

public double getBase()

Returns the exponential base of this converter.

Returns:

the exponential base (e.g. Math.E for the Natural Exponential).

isIdentity

public boolean isIdentity()

Specified by:

isIdentity in interface javax.measure.UnitConverter

isSimpleCompositionWith

protected boolean isSimpleCompositionWith(AbstractConverter that)

Description copied from class: AbstractConverter

Non-API Guard for AbstractConverter.simpleCompose(AbstractConverter)

Specified by:

isSimpleCompositionWith in class AbstractConverter

Parameters:

that -

Returns:

whether or not a 'simple' composition of transformations is possible

simpleCompose

protected AbstractConverter simpleCompose(AbstractConverter that)

Description copied from class: AbstractConverter

Non-API Guarded by AbstractConverter.isSimpleCompositionWith(AbstractConverter)

Overrides:

simpleCompose in class AbstractConverter

Parameters:

that -

Returns:

a new AbstractConverter that adds no additional conversion step

inverseWhenNotIdentity

public AbstractConverter inverseWhenNotIdentity()

Description copied from class: AbstractConverter

Non-API

Returns an AbstractConverter that represents the inverse transformation of this converter, for cases where the transformation is not the identity transformation.

Specified by:

inverseWhenNotIdentity in class AbstractConverter

Returns:

transformationLiteral

public final String transformationLiteral()

Description copied from class: AbstractConverter

Non-API

Returns a String describing the transformation that is represented by this converter. Contributes to converter's toString method. If null or empty toString output becomes simplified.

Specified by:

transformationLiteral in class AbstractConverter

Returns:

equals

public boolean equals(Object obj)

Specified by:

equals in class AbstractConverter

hashCode

public int hashCode()

Specified by:

hashCode in class AbstractConverter

convertWhenNotIdentity

public double convertWhenNotIdentity(double amount)

Description copied from class: AbstractConverter

Non-API

Specified by:

convertWhenNotIdentity in class AbstractConverter

Parameters:

amount -

Returns:

transformed value

convertWhenNotIdentity

public BigDecimal convertWhenNotIdentity(BigDecimal value,
 MathContext ctx)
                                  throws ArithmeticException

Description copied from class: AbstractConverter

Non-API

Specified by:

convertWhenNotIdentity in class AbstractConverter

Parameters:

value -

ctx -

Returns:

transformed value

Throws:

ArithmeticException

isLinear

public boolean isLinear()

Specified by:

isLinear in interface javax.measure.UnitConverter

getValue

public String getValue()

Specified by:

getValue in interface tech.uom.lib.common.function.ValueSupplier<String>

compareTo

public int compareTo(javax.measure.UnitConverter o)

Specified by:

compareTo in interface Comparable<javax.measure.UnitConverter>