Knopflerfish OSGi 5.2.0

org.osgi.util.measurement
Class Unit

java.lang.Object
  extended by org.osgi.util.measurement.Unit

public class Unit
extends java.lang.Object

A unit system for measurements. This class contains definitions of the most common SI units.

This class only support exponents for the base SI units in the range -64 to +63. Any operation which produces an exponent outside of this range will result in a Unit object with undefined exponents.

Author:
$Id: e97563d26244bd44b59b81febc33cdfb418729a8 $
Immutable

Field Summary
static Unit A
          The electric current unit ampere (A)
static Unit C
          The electric charge unit coulomb (C).
static Unit cd
          The luminous intensity unit candela (cd)
static Unit F
          The capacitance unit farad (F).
static Unit Gy
          The absorbed dose unit gray (Gy).
static Unit Hz
          The frequency unit hertz (Hz).
static Unit J
          The energy unit joule (J).
static Unit K
          The temperature unit kelvin (K)
static Unit kat
          The catalytic activity unit katal (kat).
static Unit kg
          The mass unit kilogram (kg)
static Unit lx
          The illuminance unit lux (lx).
static Unit m
          The length unit meter (m)
static Unit m_s
          The speed unit meter per second (m/s)
static Unit m_s2
          The acceleration unit meter per second squared (m/s2)
static Unit m2
          The area unit square meter (m2)
static Unit m3
          The volume unit cubic meter (m3)
static Unit mol
          The amount of substance unit mole (mol)
static Unit N
          The force unit newton (N).
static Unit Ohm
          The electric resistance unit ohm.
static Unit Pa
          The pressure unit pascal (Pa).
static Unit rad
          The angle unit radians (rad)
static Unit s
          The time unit second (s)
static Unit S
          The electric conductance unit siemens (S).
static Unit T
          The magnetic flux density unit tesla (T).
static Unit unity
          No Unit (Unity)
static Unit V
          The electric potential difference unit volt (V).
static Unit W
          The power unit watt (W).
static Unit Wb
          The magnetic flux unit weber (Wb).
 
Method Summary
 boolean equals(java.lang.Object obj)
          Checks whether this Unit object is equal to the specified Unit object.
 int hashCode()
          Returns the hash code for this object.
 java.lang.String toString()
          Returns a String object representing the Unit
 
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

unity

public static final Unit unity
No Unit (Unity)


m

public static final Unit m
The length unit meter (m)


s

public static final Unit s
The time unit second (s)


kg

public static final Unit kg
The mass unit kilogram (kg)


K

public static final Unit K
The temperature unit kelvin (K)


A

public static final Unit A
The electric current unit ampere (A)


mol

public static final Unit mol
The amount of substance unit mole (mol)


cd

public static final Unit cd
The luminous intensity unit candela (cd)


m_s

public static final Unit m_s
The speed unit meter per second (m/s)


m_s2

public static final Unit m_s2
The acceleration unit meter per second squared (m/s2)


m2

public static final Unit m2
The area unit square meter (m2)


m3

public static final Unit m3
The volume unit cubic meter (m3)


Hz

public static final Unit Hz
The frequency unit hertz (Hz).

hertz is expressed in SI units as 1/s


N

public static final Unit N
The force unit newton (N).

N is expressed in SI units as m·kg/s2


Pa

public static final Unit Pa
The pressure unit pascal (Pa).

Pa is equal to N/m2 or is expressed in SI units as kg/m·s2


J

public static final Unit J
The energy unit joule (J).

joule is equal to N·m or is expressed in SI units as m2·kg/s2


W

public static final Unit W
The power unit watt (W).

watt is equal to J/s or is expressed in SI units as m2·kg/s3


C

public static final Unit C
The electric charge unit coulomb (C).

coulomb is expressed in SI units as s·A


V

public static final Unit V
The electric potential difference unit volt (V).

volt is equal to W/A or is expressed in SI units as m2·kg/s3·A


F

public static final Unit F
The capacitance unit farad (F).

farad is equal to C/V or is expressed in SI units as s4·A2/m2·kg


Ohm

public static final Unit Ohm
The electric resistance unit ohm.

ohm is equal to V/A or is expressed in SI units as m2·kg/s3·A2


S

public static final Unit S
The electric conductance unit siemens (S).

siemens is equal to A/V or is expressed in SI units as s3·A2/m2·kg


Wb

public static final Unit Wb
The magnetic flux unit weber (Wb).

weber is equal to V·s or is expressed in SI units as m2·kg/s2·A


T

public static final Unit T
The magnetic flux density unit tesla (T).

tesla is equal to Wb/m2 or is expressed in SI units as kg/s2·A


lx

public static final Unit lx
The illuminance unit lux (lx).

lux is expressed in SI units as cd/m2


Gy

public static final Unit Gy
The absorbed dose unit gray (Gy).

Gy is equal to J/kg or is expressed in SI units as m2/s2


kat

public static final Unit kat
The catalytic activity unit katal (kat).

katal is expressed in SI units as mol/s


rad

public static final Unit rad
The angle unit radians (rad)

Method Detail

equals

public boolean equals(java.lang.Object obj)
Checks whether this Unit object is equal to the specified Unit object. The Unit objects are considered equal if their exponents are equal.

Overrides:
equals in class java.lang.Object
Parameters:
obj - the Unit object that should be checked for equality
Returns:
true if the specified Unit object is equal to this Unit object.

hashCode

public int hashCode()
Returns the hash code for this object.

Overrides:
hashCode in class java.lang.Object
Returns:
This object's hash code.

toString

public java.lang.String toString()
Returns a String object representing the Unit

Overrides:
toString in class java.lang.Object
Returns:
A String object representing the Unit

Knopflerfish OSGi 5.2.0