org.krysalis.barcode4j.impl.upcean
Class UPCELogicImpl

java.lang.Object
  org.krysalis.barcode4j.impl.upcean.UPCEANLogicImpl
      org.krysalis.barcode4j.impl.upcean.UPCELogicImpl

public class UPCELogicImpl
extends UPCEANLogicImpl

This class is an implementation of the UPC-E barcode.

Version:

$Id: UPCELogicImpl.java,v 1.2 2004/10/24 11:45:53 jmaerki Exp $

Author:

Jeremias Maerki

Field Summary

Fields inherited from class org.krysalis.barcode4j.impl.upcean.UPCEANLogicImpl

EVEN_PARITY, LEFT_HAND_A, LEFT_HAND_B, ODD_PARITY, RIGHT_HAND

Constructor Summary

UPCELogicImpl(ChecksumMode mode)
Main constructor

Method Summary

static java.lang.String	compactMessage(java.lang.String msg) Compacts an UPC-A message to an UPC-E message if possible.
protected void	drawUPCERightGuard(ClassicBarcodeLogicHandler logic) Generates a UPC-E right guard.
static java.lang.String	expandMessage(java.lang.String msg) Expands an UPC-E message to an UPC-A message.
void	generateBarcodeLogic(ClassicBarcodeLogicHandler logic, java.lang.String msg) Generates the barcode logic.
static void	validateMessage(java.lang.String msg) Validates an UPC-E message.

Methods inherited from class org.krysalis.barcode4j.impl.upcean.UPCEANLogicImpl

calcChecksum, drawCenterGuard, drawSideGuard, drawSupplemental, encodeChar, getChecksumMode, getSupplementalLength, removeSupplemental, retrieveSupplemental

Methods inherited from class java.lang.Object

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

Constructor Detail

UPCELogicImpl

public UPCELogicImpl(ChecksumMode mode)

Main constructor

Parameters:

mode - the checksum mode

Method Detail

compactMessage

public static java.lang.String compactMessage(java.lang.String msg)

Compacts an UPC-A message to an UPC-E message if possible.

Parameters:

msg - an UPC-A message

Returns:

String the derived UPC-E message (with checksum), null if the message is a valid UPC-A message but no UPC-E representation is possible

expandMessage

public static java.lang.String expandMessage(java.lang.String msg)

Expands an UPC-E message to an UPC-A message.

Parameters:

msg - an UPC-E message (7 or 8 characters)

Returns:

String the expanded UPC-A message (with checksum, 12 characters)

validateMessage

public static void validateMessage(java.lang.String msg)

Validates an UPC-E message. The message can also be UPC-A in which case the message is compacted to a UPC-E message if possible. If it's not possible an IllegalArgumentException is thrown

Parameters:

msg - the message to validate

drawUPCERightGuard

protected void drawUPCERightGuard(ClassicBarcodeLogicHandler logic)

Generates a UPC-E right guard.

Parameters:

logic - the logic handler to receive generated events

generateBarcodeLogic

public void generateBarcodeLogic(ClassicBarcodeLogicHandler logic,
                                 java.lang.String msg)

Description copied from class: UPCEANLogicImpl

Generates the barcode logic.

Specified by:

generateBarcodeLogic in class UPCEANLogicImpl

Parameters:

logic - the logic handler to receive generated events

msg - the message to encode

See Also:

UPCEANLogicImpl