tec.uom.se.unit

Class BaseUnit<Q extends javax.measure.Quantity<Q>>

java.lang.Object

tec.uom.se.AbstractUnit<Q>

tec.uom.se.unit.BaseUnit<Q>

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable<javax.measure.Unit<Q>>, javax.measure.Unit<Q>

public final class BaseUnit<Q extends javax.measure.Quantity<Q>>
extends AbstractUnit<Q>

This class represents the building blocks on top of which all others physical units are created. Base units are always unscaled SI units.

When using the standard model, all seven SI base units are dimensionally independent.

Version:

1.0, Jan 21, 2017

See Also:

Wikipedia: SI base unit, Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
private javax.measure.Dimension	dimension Holds the base unit dimension.
private static long	serialVersionUID
private java.lang.String	symbol Holds the symbol.

Fields inherited from class tec.uom.se.AbstractUnit

name, ONE, SYMBOL_TO_UNIT

Constructor Summary

Constructors

Constructor and Description
BaseUnit(java.lang.String symbol) Creates a base unit having the specified symbol and dimension.
BaseUnit(java.lang.String symbol, javax.measure.Dimension dimension) Creates a base unit having the specified symbol and dimension.
BaseUnit(java.lang.String symbol, java.lang.String name) Creates a base unit having the specified symbol and name.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object that)
java.util.Map<? extends AbstractUnit<Q>,java.lang.Integer>	getBaseUnits()
javax.measure.Dimension	getDimension()
java.lang.String	getSymbol()
javax.measure.UnitConverter	getSystemConverter() Returns the converter from this unit to its unscaled System Unit unit.
int	hashCode()
AbstractUnit<Q>	toSystemUnit() Returns the unscaled SI unit from which this unit is derived.

Methods inherited from class tec.uom.se.AbstractUnit

alternate, annotate, asType, compareTo, divide, divide, divide, getActualType, getConverterTo, getConverterToAny, getName, getSystemUnit, inverse, isCompatible, isSystemUnit, multiply, multiply, multiply, parse, pow, root, setName, setSymbol, shift, toString, transform

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

symbol

private final java.lang.String symbol

Holds the symbol.

dimension

private final javax.measure.Dimension dimension

Holds the base unit dimension.

Constructor Detail

BaseUnit

public BaseUnit(java.lang.String symbol,
                javax.measure.Dimension dimension)

Creates a base unit having the specified symbol and dimension.

Parameters:

symbol - the symbol of this base unit.

BaseUnit

public BaseUnit(java.lang.String symbol)

Creates a base unit having the specified symbol and dimension.

Parameters:

symbol - the symbol of this base unit.

BaseUnit

public BaseUnit(java.lang.String symbol,
                java.lang.String name)

Creates a base unit having the specified symbol and name.

Parameters:

symbol - the symbol of this base unit.

name - the name of this base unit.

Throws:

java.lang.IllegalArgumentException - if the specified symbol is associated to a different unit.

Method Detail

getSymbol

public java.lang.String getSymbol()

Specified by:

getSymbol in interface javax.measure.Unit<Q extends javax.measure.Quantity<Q>>

Overrides:

getSymbol in class AbstractUnit<Q extends javax.measure.Quantity<Q>>

toSystemUnit

public AbstractUnit<Q> toSystemUnit()

Description copied from class: AbstractUnit

Returns the unscaled SI unit from which this unit is derived. They SI unit can be be used to identify a quantity given the unit. For example:[code] static boolean isAngularVelocity(AbstractUnit unit) { return unit.toSI().equals(RADIAN.divide(SECOND)); } assert(REVOLUTION.divide(MINUTE).isAngularVelocity()); // Returns true. [/code]

Specified by:

toSystemUnit in class AbstractUnit<Q extends javax.measure.Quantity<Q>>

Returns:

the unscaled metric unit from which this unit is derived.

getSystemConverter

public javax.measure.UnitConverter getSystemConverter()
                                               throws java.lang.UnsupportedOperationException

Description copied from class: AbstractUnit

Returns the converter from this unit to its unscaled System Unit unit.

Specified by:

getSystemConverter in class AbstractUnit<Q extends javax.measure.Quantity<Q>>

Returns:

getConverterTo(this.toSystemUnit())

Throws:

java.lang.UnsupportedOperationException

See Also:

#toSI

getDimension

public javax.measure.Dimension getDimension()

Specified by:

getDimension in interface javax.measure.Unit<Q extends javax.measure.Quantity<Q>>

Specified by:

getDimension in class AbstractUnit<Q extends javax.measure.Quantity<Q>>

equals

public final boolean equals(java.lang.Object that)

Specified by:

equals in class AbstractUnit<Q extends javax.measure.Quantity<Q>>

hashCode

public final int hashCode()

Specified by:

hashCode in class AbstractUnit<Q extends javax.measure.Quantity<Q>>

getBaseUnits

public java.util.Map<? extends AbstractUnit<Q>,java.lang.Integer> getBaseUnits()

Specified by:

getBaseUnits in interface javax.measure.Unit<Q extends javax.measure.Quantity<Q>>

Specified by:

getBaseUnits in class AbstractUnit<Q extends javax.measure.Quantity<Q>>