ucar.units

Class Prefix

java.lang.Object

ucar.units.Prefix

All Implemented Interfaces:

Comparable<Object>

Direct Known Subclasses:

PrefixName, PrefixSymbol

@Immutable
public abstract class Prefix
extends Object
implements Comparable<Object>

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

Author:

Steven R. Emmerson

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Prefix(String id, double value) Constructs from an identifier and a value.

Method Summary

Methods

Modifier and Type	Method and Description
abstract int	compareTo(Object obj) Compares this prefix to another.
abstract int	compareTo(String string) Compares this prefix to a string.
String	getID() Gets the prefix identifier.
double	getValue() Gets the prefix value.
int	length() Return the length of the prefix identifier.
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(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 String getID()

Gets the prefix identifier.

Returns:

The prefix identifier.

toString

public final String toString()

Returns the string representation of this prefix.

Overrides:

toString in class 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(Object obj)

Compares this prefix to another.

Specified by:

compareTo in interface Comparable<Object>

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(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.