Package org.jpos.iso

Class BCDInterpreter

java.lang.Object

org.jpos.iso.BCDInterpreter

All Implemented Interfaces:

Interpreter

public class BCDInterpreter
extends java.lang.Object
implements Interpreter

Implements BCD Interpreter. Numeric Strings (consisting of chars '0'..'9' are converted to and from BCD bytes. Thus, "1234" is converted into 2 bytes: 0x12, 0x34.

Field Summary

Fields

Modifier and Type	Field	Description
static BCDInterpreter	LEFT_PADDED	This BCDInterpreter sometimes adds a 0-nibble to the left.
static BCDInterpreter	LEFT_PADDED_F	This BCDInterpreter sometimes adds a F-nibble to the left.
static BCDInterpreter	RIGHT_PADDED	This BCDInterpreter sometimes adds a 0-nibble to the right.
static BCDInterpreter	RIGHT_PADDED_F	This BCDInterpreter sometimes adds a F-nibble to the right.

Method Summary

Modifier and Type	Method	Description
int	getPackedLength(int nDataUnits)	Each numeric digit is packed into a nibble, so 2 digits per byte, plus the possibility of padding.
void	interpret(java.lang.String data, byte[] b, int offset)	(non-Javadoc)
java.lang.String	uninterpret(byte[] rawData, int offset, int length)	(non-Javadoc)

Methods inherited from class java.lang.Object

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

Field Detail

LEFT_PADDED

public static final BCDInterpreter LEFT_PADDED

This BCDInterpreter sometimes adds a 0-nibble to the left.

RIGHT_PADDED

public static final BCDInterpreter RIGHT_PADDED

This BCDInterpreter sometimes adds a 0-nibble to the right.

RIGHT_PADDED_F

public static final BCDInterpreter RIGHT_PADDED_F

This BCDInterpreter sometimes adds a F-nibble to the right.

LEFT_PADDED_F

public static final BCDInterpreter LEFT_PADDED_F

This BCDInterpreter sometimes adds a F-nibble to the left.

Method Detail

interpret

public void interpret(java.lang.String data,
                      byte[] b,
                      int offset)

(non-Javadoc)

Specified by:

interpret in interface Interpreter

uninterpret

public java.lang.String uninterpret(byte[] rawData,
                                    int offset,
                                    int length)

(non-Javadoc)

Specified by:

uninterpret in interface Interpreter

Parameters:

rawData - The interpreted data.

offset - The index in rawData to start interpreting at.

length - The number of data units to interpret.

Returns:

The uninterpreted data.

getPackedLength

public int getPackedLength(int nDataUnits)

Each numeric digit is packed into a nibble, so 2 digits per byte, plus the possibility of padding.

Specified by:

getPackedLength in interface Interpreter