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javax.units
Class MultiplyConverter

java.lang.Object
  javax.units.Converter
      javax.units.MultiplyConverter

All Implemented Interfaces:

java.io.Serializable

public final class MultiplyConverter

extends Converter

This class represents a multiply converter. A multiply converter multiplies numeric values by a constant scale factor.

Instances of this class are immutable.

Version:

4.0, February 29, 2003

Author:

Jean-Marie Dautelle

See Also:

Serialized Form

Field Summary

Fields inherited from class javax.units.Converter

IDENTITY

Constructor Summary

MultiplyConverter(double factor)
Creates a multiply converter with the specified scale factor.

Method Summary

Converter	concatenate(Converter converter) Concatenates this converter with another converter.
double	convert(double amount) Converts a double value.
double	derivative(double x) Returns this converter derivative for the specified x value.
Converter	inverse() Returns the inverse of this converter.
boolean	isLinear() Indicates if this converter is linear.

Methods inherited from class javax.units.Converter

equals, hashCode

Methods inherited from class java.lang.Object

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

Constructor Detail

MultiplyConverter

public MultiplyConverter(double factor)

Creates a multiply converter with the specified scale factor.

Parameters:

factor - the scale factor.

Method Detail

inverse

public Converter inverse()

Description copied from class: Converter

Returns the inverse of this converter. If x is a valid value, then x == inverse().convert(convert(x)) to within the accuracy of computer arithmetic.

Specified by:

inverse in class Converter

Returns:

the inverse of this converter.

convert

public double convert(double amount)

Description copied from class: Converter

Converts a double value.

Specified by:

convert in class Converter

Parameters:

amount - the numeric value to convert.

Returns:

the converted numeric value.

derivative

public double derivative(double x)

Description copied from class: Converter

Returns this converter derivative for the specified x value. For linear converters, this method returns a constant (the linear factor) for all x values.

Specified by:

derivative in class Converter

Parameters:

x - the value for which the derivative is calculated.

Returns:

the derivative for the specified value.

isLinear

public boolean isLinear()

Description copied from class: Converter

Indicates if this converter is linear. A converter is linear if convert(u + v) == convert(u) + convert(v) and convert(r * u) == r * convert(u).

Specified by:

isLinear in class Converter

Returns:

true if this converter is linear; false otherwise.

concatenate

public Converter concatenate(Converter converter)

Description copied from class: Converter

Concatenates this converter with another converter. The resulting converter is equivalent to first converting by the other converter, and then converting by this converter.

Overrides:

concatenate in class Converter

Parameters:

converter - the other converter.

Returns:

the concatenation of this converter with the other converter.