com.google.zxing.oned

类 OneDReader

java.lang.Object

com.google.zxing.oned.OneDReader

所有已实现的接口:

Reader

直接已知子类:

AbstractRSSReader, CodaBarReader, Code128Reader, Code39Reader, Code93Reader, ITFReader, MultiFormatOneDReader, MultiFormatUPCEANReader, UPCEANReader

public abstract class OneDReader
extends java.lang.Object
implements Reader

Encapsulates functionality and implementation that is common to all families of one-dimensional barcodes.

作者:

dswitkin@google.com (Daniel Switkin), Sean Owen

构造器概要

构造器

构造器和说明
OneDReader()

方法概要

限定符和类型	方法和说明
Result	decode(BinaryBitmap image) Locates and decodes a barcode in some format within an image.
Result	decode(BinaryBitmap image, java.util.Map<DecodeHintType,?> hints) Locates and decodes a barcode in some format within an image.
abstract 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.
void	reset() Resets any internal state the implementation has after a decode, to prepare it for reuse.

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

OneDReader

public OneDReader()

方法详细资料

decode

public Result decode(BinaryBitmap image)
              throws NotFoundException,
                     FormatException

从接口复制的说明: Reader

Locates and decodes a barcode in some format within an image.

指定者:

decode 在接口中 Reader

参数:

image - image of barcode to decode

返回:

String which the barcode encodes

抛出:

NotFoundException - if no potential barcode is found

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

decode

public Result decode(BinaryBitmap image,
                     java.util.Map<DecodeHintType,?> hints)
              throws NotFoundException,
                     FormatException

从接口复制的说明: Reader

Locates and decodes a barcode in some format within an image. This method also accepts hints, each possibly associated to some data, which may help the implementation decode.

指定者:

decode 在接口中 Reader

参数:

image - image of barcode to decode

hints - passed as a Map from DecodeHintType to arbitrary data. The meaning of the data depends upon the hint type. The implementation may or may not do anything with these hints.

返回:

String which the barcode encodes

抛出:

NotFoundException - if no potential barcode is found

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

reset

public void reset()

从接口复制的说明: Reader

Resets any internal state the implementation has after a decode, to prepare it for reuse.

指定者:

reset 在接口中 Reader

decodeRow

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

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

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