com.trivago.triava.util

Class UnitSystem

java.lang.Object

com.trivago.triava.util.UnitSystem

public class UnitSystem
extends Object

Defines a Unit system that contains UnitPrefixes for kilo, mega ang giga. Unit systems are used by UnitFormatter and UnitComponent to split a value into components and format values to readable output like "23.5kB". Own systems can be defined, but most use cases will be covered by the 3 predefined systems:

• SI uses Si units and names (k, kilo), using 1000 as a base.
• IEC60027-2 uses "base 2" units and names (Ki, kibi), using 1024 as a base.
• JEDEC uses JEDEC units and names (similar to Si, except JEDEC uses "K" for Kilo), using 1024 as a base. JEDEC usage is discouraged for normal usage, except where it is a requirement like in the microelectronics industry

Author:

cesken

Field Summary

Fields

Modifier and Type	Field and Description
static UnitSystem	IEC IEC base 2 units (Ki) and names (kibi), using 1024 as a base
static UnitSystem	JEDEC JEDEC units (K) and names (kilo), using 1024 as a base.
static UnitSystem	SI Si units (k) and names (kilo), using 1000 as a base

Method Summary

Modifier and Type	Method and Description
UnitPrefix	basePrefix()
UnitPrefix	gigaPrefix()
UnitPrefix	kiloPrefix()
UnitPrefix	megaPrefix()

Methods inherited from class java.lang.Object

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

Field Detail

SI

public static final UnitSystem SI

Si units (k) and names (kilo), using 1000 as a base

IEC

public static final UnitSystem IEC

IEC base 2 units (Ki) and names (kibi), using 1024 as a base

JEDEC

public static final UnitSystem JEDEC

JEDEC units (K) and names (kilo), using 1024 as a base. JEDEC should only used when mandatory, as SI and IEC are more commonplace.

Method Detail

basePrefix

public UnitPrefix basePrefix()

kiloPrefix

public UnitPrefix kiloPrefix()

megaPrefix

public UnitPrefix megaPrefix()

gigaPrefix

public UnitPrefix gigaPrefix()