com.google.zxing.oned

类 Code39Reader

java.lang.Object

com.google.zxing.oned.OneDReader

com.google.zxing.oned.Code39Reader

所有已实现的接口:

Reader

public final class Code39Reader
extends OneDReader

Decodes Code 39 barcodes. This does not support "Full ASCII Code 39" yet.

作者:

Sean Owen

另请参阅:

Code93Reader

构造器概要

构造器

构造器和说明
Code39Reader() Creates a reader that assumes all encoded data is data, and does not treat the final character as a check digit.
Code39Reader(boolean usingCheckDigit) Creates a reader that can be configured to check the last character as a check digit.
Code39Reader(boolean usingCheckDigit, boolean extendedMode) Creates a reader that can be configured to check the last character as a check digit, or optionally attempt to decode "extended Code 39" sequences that are used to encode the full ASCII character set.

方法概要

限定符和类型	方法和说明
Result	decodeRow(int rowNumber, BitArray row, java.util.Map<DecodeHintType,?> hints) Attempts to decode a one-dimensional barcode format given a single row of an image.

从类继承的方法 com.google.zxing.oned.OneDReader

decode, decode, reset

从类继承的方法 java.lang.Object

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

构造器详细资料

Code39Reader

public Code39Reader()

Creates a reader that assumes all encoded data is data, and does not treat the final character as a check digit. It will not decoded "extended Code 39" sequences.

Code39Reader

public Code39Reader(boolean usingCheckDigit)

Creates a reader that can be configured to check the last character as a check digit. It will not decoded "extended Code 39" sequences.

参数:

usingCheckDigit - if true, treat the last data character as a check digit, not data, and verify that the checksum passes.

Code39Reader

public Code39Reader(boolean usingCheckDigit,
                    boolean extendedMode)

Creates a reader that can be configured to check the last character as a check digit, or optionally attempt to decode "extended Code 39" sequences that are used to encode the full ASCII character set.

参数:

usingCheckDigit - if true, treat the last data character as a check digit, not data, and verify that the checksum passes.

extendedMode - if true, will attempt to decode extended Code 39 sequences in the text.

方法详细资料

decodeRow

public Result decodeRow(int rowNumber,
                        BitArray row,
                        java.util.Map<DecodeHintType,?> hints)
                 throws NotFoundException,
                        ChecksumException,
                        FormatException

从类复制的说明: OneDReader

Attempts to decode a one-dimensional barcode format given a single row of an image.

指定者:

decodeRow 在类中 OneDReader

参数:

rowNumber - row number from top of the row

row - the black/white pixel data of the row

hints - decode hints

返回:

Result containing encoded string and start/end of barcode

抛出:

NotFoundException - if no potential barcode is found

ChecksumException - if a potential barcode is found but does not pass its checksum

FormatException - if a potential barcode is found but format is invalid