net.sourceforge.jbarcodebean.model
Class Codabar

java.lang.Object
  net.sourceforge.jbarcodebean.model.AbstractBarcodeStrategy
      net.sourceforge.jbarcodebean.model.Codabar

All Implemented Interfaces:

java.io.Serializable, BarcodeStrategy

Direct Known Subclasses:

Codabar_2to1

public class Codabar
extends AbstractBarcodeStrategy
implements java.io.Serializable

This class, which implements the BarcodeStrategy interface, knows how to encode the 3:1 (wide) variant of the Codabar barcode type.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class net.sourceforge.jbarcodebean.model.AbstractBarcodeStrategy

AbstractBarcodeStrategy.CharacterCode

Field Summary

Fields inherited from interface net.sourceforge.jbarcodebean.model.BarcodeStrategy

MANDATORY_CHECKSUM, NO_CHECKSUM, OPTIONAL_CHECKSUM

Constructor Summary

Codabar()

Method Summary

protected java.lang.String	augmentWithChecksum(java.lang.String text) Codabar does not have a checksum, so this function should never be called.
protected java.lang.String	getBarcodeLabelText(java.lang.String text) This implementation of getBarcodeLabelText does nothing except return the text passed to the method.
protected AbstractBarcodeStrategy.CharacterCode[]	getCodes() This implementation of getCodes returns an array of CharacterCode objects for the wide Codabar format.
protected byte	getMarginWidth() Always returns 11 (eleven).
protected char	getStartSentinel() Always returns 'A'.
protected char	getStopSentinel() Always returns 'B'.
protected boolean	isInterleaved() Always returns false
protected java.lang.String	postprocess(java.lang.String text) This implementation of postprocess does nothing except return the text passed to the method.
protected java.lang.String	preprocess(java.lang.String text) This implementation of preprocess does nothing except return the text passed to the method.
int	requiresChecksum() Always returns BarcodeStrategy.NO_CHECKSUM.

Methods inherited from class net.sourceforge.jbarcodebean.model.AbstractBarcodeStrategy

computeSize, encode, getCharacterCode, getCharacterCode

Methods inherited from class java.lang.Object

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

Constructor Detail

Codabar

public Codabar()

Method Detail

requiresChecksum

public int requiresChecksum()

Always returns BarcodeStrategy.NO_CHECKSUM.

Specified by:

requiresChecksum in interface BarcodeStrategy

getCodes

protected AbstractBarcodeStrategy.CharacterCode[] getCodes()

This implementation of getCodes returns an array of CharacterCode objects for the wide Codabar format.

Specified by:

getCodes in class AbstractBarcodeStrategy

Returns:

An array of CharacterCode objects, one for each possible character that can be encoded using this strategy.

augmentWithChecksum

protected java.lang.String augmentWithChecksum(java.lang.String text)
                                        throws BarcodeException

Codabar does not have a checksum, so this function should never be called. This implementation simply throws an exception.

Specified by:

augmentWithChecksum in class AbstractBarcodeStrategy

Parameters:

text - The text to encode (after preprocessing - see AbstractBarcodeStrategy.preprocess(java.lang.String)).

Returns:

A String containing the text passed into the method, augmented with the checksum. For barcode types that don't support a checksum, this would simply be the text passed to the method.

Throws:

BarcodeException

postprocess

protected java.lang.String postprocess(java.lang.String text)

This implementation of postprocess does nothing except return the text passed to the method.

Specified by:

postprocess in class AbstractBarcodeStrategy

Parameters:

text - String to process (returned by AbstractBarcodeStrategy.augmentWithChecksum(java.lang.String)).

Returns:

String after postprocessing. If no postprocessing is required, the String passed to the method is returned.

preprocess

protected java.lang.String preprocess(java.lang.String text)

This implementation of preprocess does nothing except return the text passed to the method.

Specified by:

preprocess in class AbstractBarcodeStrategy

Parameters:

text - The raw text to encode.

Returns:

The string after preprocessing. If no preprocessing is required, the String passed to the method is returned.

isInterleaved

protected boolean isInterleaved()

Always returns false

Specified by:

isInterleaved in class AbstractBarcodeStrategy

Returns:

true if barcode type is interleaved, false if it is not.

getStartSentinel

protected char getStartSentinel()

Always returns 'A'.

Specified by:

getStartSentinel in class AbstractBarcodeStrategy

Returns:

The character, which when encoded into bars and spaces, appears on the left edge of every barcode (immediately after the left margin).

getStopSentinel

protected char getStopSentinel()

Always returns 'B'.

Specified by:

getStopSentinel in class AbstractBarcodeStrategy

Returns:

The character, which when encoded into bars and spaces, appears on the right edge of every barcode (just before the right margin).

getMarginWidth

protected byte getMarginWidth()

Always returns 11 (eleven).

Specified by:

getMarginWidth in class AbstractBarcodeStrategy

Returns:

The space that must appear on the left and right sides of the barcode expressed as a multiple of the narrowest bar width.

getBarcodeLabelText

protected java.lang.String getBarcodeLabelText(java.lang.String text)

This implementation of getBarcodeLabelText does nothing except return the text passed to the method.

Specified by:

getBarcodeLabelText in class AbstractBarcodeStrategy

Parameters:

text - The raw text to encode.

Returns:

A String containing the text that will appear beneath the barcode.