com.google.zxing.oned
Class AbstractOneDReader

java.lang.Object
  extended by com.google.zxing.oned.AbstractOneDReader
All Implemented Interfaces:
OneDReader, Reader
Direct Known Subclasses:
AbstractUPCEANReader, Code128Reader, Code39Reader, ITFReader, MultiFormatOneDReader, MultiFormatUPCEANReader

public abstract class AbstractOneDReader
extends Object
implements OneDReader

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

Since:
BlackBerry API 6.0.0

Constructor Summary
AbstractOneDReader()
           
 
Method Summary
 Result decode(BinaryBitmap image)
          Locates and decodes a barcode in some format within an image.
 Result decode(BinaryBitmap image, Hashtable hints)
          Locates and decodes a barcode in some format within an image.
abstract  Result decodeRow(int rowNumber, BitArray row, Hashtable hints)
          Attempts to decode a one-dimensional barcode format given a single row of an image.
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 



Constructor Detail

AbstractOneDReader

public AbstractOneDReader()
Since:
BlackBerry API 6.0.0


Method Detail

decode

public final Result decode(BinaryBitmap image)
                    throws ReaderException
Description copied from interface: Reader
Locates and decodes a barcode in some format within an image.

Specified by:
decode in interface Reader
Parameters:
image - image of barcode to decode
Returns:
String which the barcode encodes
Throws:
ReaderException - if the barcode cannot be located or decoded for any reason
Since:
BlackBerry API 6.0.0

decode

public final Result decode(BinaryBitmap image,
                           Hashtable hints)
                    throws ReaderException
Description copied from interface: 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.

Specified by:
decode in interface Reader
Parameters:
image - image of barcode to decode
hints - passed as a Hashtable 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.
Returns:
String which the barcode encodes
Throws:
ReaderException - if the barcode cannot be located or decoded for any reason
Since:
BlackBerry API 6.0.0

decodeRow

public abstract Result decodeRow(int rowNumber,
                                 BitArray row,
                                 Hashtable hints)
                          throws ReaderException
Description copied from interface: OneDReader

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

Specified by:
decodeRow in interface OneDReader
Parameters:
rowNumber - row number from top of the row
row - the black/white pixel data of the row
hints - decode hints
Returns:
Result containing encoded string and start/end of barcode
Throws:
ReaderException - if an error occurs or barcode cannot be found
Since:
BlackBerry API 6.0.0





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