Class HexNibblesPrefixer

java.lang.Object

org.jpos.iso.HexNibblesPrefixer

All Implemented Interfaces:

Prefixer

public class HexNibblesPrefixer
extends Object
implements Prefixer

HexNibblesPrefixer constructs a prefix storing the length in BCD.

Field Summary

Fields

Modifier and Type	Field	Description
static final HexNibblesPrefixer	LL
static final HexNibblesPrefixer	LLL

Constructor Summary

Constructors

Constructor	Description
HexNibblesPrefixer(int nDigits)

Method Summary

Modifier and Type	Method	Description
int	decodeLength(byte[] b, int offset)	Decodes an encoded length.
void	encodeLength(int length, byte[] b)	Fills a byte array with the field length data in raw form.
int	getPackedLength()	Returns the number of bytes taken up by the length encoding.

Methods inherited from class Object

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

Field Details

LL

public static final HexNibblesPrefixer LL

LLL

public static final HexNibblesPrefixer LLL

Constructor Details

HexNibblesPrefixer

public HexNibblesPrefixer(int nDigits)

Method Details

encodeLength

public void encodeLength(int length,
 byte[] b)

Description copied from interface: Prefixer

Fills a byte array with the field length data in raw form.

Specified by:

encodeLength in interface Prefixer

Parameters:

length - The length to be encoded.

b - The byte array to fill with the encoded length.

decodeLength

public int decodeLength(byte[] b,
 int offset)

Description copied from interface: Prefixer

Decodes an encoded length.

Specified by:

decodeLength in interface Prefixer

Parameters:

b - The byte array to scan for the length.

offset - The offset to start scanning from.

Returns:

The length in chars of the field data to follow this LengthPrefix.

getPackedLength

public int getPackedLength()

Description copied from interface: Prefixer

Returns the number of bytes taken up by the length encoding.

Specified by:

getPackedLength in interface Prefixer