ucar.units
Class Prefix

java.lang.Object
  ucar.units.Prefix

All Implemented Interfaces:

java.lang.Comparable

Direct Known Subclasses:

PrefixName, PrefixSymbol

public abstract class Prefix
extends java.lang.Object
implements java.lang.Comparable

Provides support for unit prefixes (e.g. "centi", "c"). Instances of this class are immutable.

Version:

$Id: Prefix.java 64 2006-07-12 22:30:50Z edavis $

Author:

Steven R. Emmerson

Constructor Summary

protected

Prefix(java.lang.String id, double value) Constructs from an identifier and a value.

Method Summary

abstract int	compareTo(java.lang.Object obj) Compares this prefix to another.
abstract int	compareTo(java.lang.String string) Compares this prefix to a string.
java.lang.String	getID() Gets the prefix identifier.
double	getValue() Gets the prefix value.
int	length() Return the length of the prefix identifier.
java.lang.String	toString() Returns the string representation of this prefix.

Methods inherited from class java.lang.Object

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

Constructor Detail

Prefix

protected Prefix(java.lang.String id,
                 double value)

Constructs from an identifier and a value.

Parameters:

id - The prefix identifier (e.g. "milli" or "m").

value - The prefix value (e.g. 1e-3).

Method Detail

getID

public final java.lang.String getID()

Gets the prefix identifier.

Returns:

The prefix identifier.

toString

public final java.lang.String toString()

Returns the string representation of this prefix.

Overrides:

toString in class java.lang.Object

Returns:

The string representation of this prefix.

getValue

public final double getValue()

Gets the prefix value.

Returns:

The prefix value.

compareTo

public abstract int compareTo(java.lang.Object obj)

Compares this prefix to another.

Specified by:

compareTo in interface java.lang.Comparable

Parameters:

obj - The other prefix.

Returns:

A negative value, zero, or a positive value depending on whether this prefix is less than equal to, or greater than obj.

compareTo

public abstract int compareTo(java.lang.String string)

Compares this prefix to a string.

Parameters:

string - The string.

Returns:

A negative value, zero, or a positive value depending on whether this prefix is less than equal to, or greater than the string.

length

public final int length()

Return the length of the prefix identifier.

Returns:

The length of the prefix identifier.