org.wildfly.common.codec

Class Alphabet

java.lang.Object

org.wildfly.common.codec.Alphabet

Direct Known Subclasses:

Base32Alphabet, Base64Alphabet

public abstract class Alphabet
extends java.lang.Object

A base-n encoder/decoder alphabet. Alphabets may be little-endian or big-endian. Each base has its own subclass.

Method Summary

Modifier and Type	Method and Description
abstract int	decode(int codePoint) Decode the given code point (character).
abstract int	encode(int val) Encode the given byte value to a code point.
boolean	isLittleEndian() Determine whether this is a little-endian or big-endian alphabet.

Methods inherited from class java.lang.Object

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

Method Detail

isLittleEndian

public boolean isLittleEndian()

Determine whether this is a little-endian or big-endian alphabet.

Returns:

true if the alphabet is little-endian, false if it is big-endian

encode

public abstract int encode(int val)

Encode the given byte value to a code point.

Parameters:

val - the value

Returns:

the Unicode code point

decode

public abstract int decode(int codePoint)

Decode the given code point (character). If the code point is not valid, -1 is returned.

Parameters:

codePoint - the Unicode code point

Returns:

the decoded value or -1 if the code point is not valid