com.google.zxing.oned
Class UPCEReader

java.lang.Object
  com.google.zxing.oned.AbstractOneDReader
      com.google.zxing.oned.AbstractUPCEANReader
          com.google.zxing.oned.UPCEReader

All Implemented Interfaces:

OneDReader, UPCEANReader, Reader

public final class UPCEReader
extends AbstractUPCEANReader

Implements decoding of the UPC-E format.

This is a great reference for UPC-E information.

Since:

BlackBerry API 6.0.0

Field Summary

Fields inherited from class com.google.zxing.oned.AbstractOneDReader

INTEGER_MATH_SHIFT, PATTERN_MATCH_RESULT_SCALE_FACTOR

Constructor Summary

UPCEReader()

Method Summary
protected boolean	checkChecksum(String s)
static String	convertUPCEtoUPCA(String upce) Expands a UPC-E value back into its full, equivalent UPC-A code value.
protected int[]	decodeEnd(BitArray row, int endStart)
protected int	decodeMiddle(BitArray row, int[] startRange, StringBuffer result) Subclasses override this to decode the portion of a barcode between the start and end guard patterns.

Methods inherited from class com.google.zxing.oned.AbstractUPCEANReader

decodeRow, decodeRow, decodeRow

Methods inherited from class com.google.zxing.oned.AbstractOneDReader

decode, decode, patternMatchVariance, recordPattern, recordPatternInReverse

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.zxing.Reader

decode, decode

Constructor Detail

UPCEReader

public UPCEReader()

Since:

BlackBerry API 6.0.0

Method Detail

decodeMiddle

protected int decodeMiddle(BitArray row,
                           int[] startRange,
                           StringBuffer result)
                    throws NotFoundException

Description copied from class: AbstractUPCEANReader

Subclasses override this to decode the portion of a barcode between the start and end guard patterns.

Specified by:

decodeMiddle in class AbstractUPCEANReader

Parameters:

row - row of black/white values to search

startRange - start/end offset of start guard pattern

result - StringBuffer to append decoded chars to

Returns:

horizontal offset of first pixel after the "middle" that was decoded

Throws:

NotFoundException - if decoding could not complete successfully

Since:

BlackBerry API 6.0.0

decodeEnd

protected int[] decodeEnd(BitArray row,
                          int endStart)
                   throws NotFoundException

Throws:

NotFoundException

Since:

BlackBerry API 6.0.0

checkChecksum

protected boolean checkChecksum(String s)
                         throws FormatException,
                                ChecksumException

Returns:

AbstractUPCEANReader.checkStandardUPCEANChecksum(String)

Throws:

FormatException

ChecksumException

Since:

BlackBerry API 6.0.0

convertUPCEtoUPCA

public static String convertUPCEtoUPCA(String upce)

Expands a UPC-E value back into its full, equivalent UPC-A code value.

Parameters:

upce - UPC-E code as string of digits

Returns:

equivalent UPC-A code as string of digits

Since:

BlackBerry API 6.0.0