Package com.google.zxing.oned
Class Code39Reader
java.lang.Object
com.google.zxing.oned.OneDReader
com.google.zxing.oned.Code39Reader
- All Implemented Interfaces:
- Reader
Decodes Code 39 barcodes. Supports "Full ASCII Code 39" if USE_CODE_39_EXTENDED_MODE is set.
- Author:
- Sean Owen
- See Also:
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Constructor SummaryConstructorsConstructorDescriptionCreates 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.
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Method SummaryModifier and TypeMethodDescriptiondecodeRow(int rowNumber, BitArray row, Map<DecodeHintType, ?> hints) Attempts to decode a one-dimensional barcode format given a single row of an image.Methods inherited from class com.google.zxing.oned.OneDReaderdecode, decode, patternMatchVariance, recordPattern, recordPatternInReverse, reset
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Constructor Details- 
Code39Readerpublic 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.
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Code39Readerpublic 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.- Parameters:
- usingCheckDigit- if true, treat the last data character as a check digit, not data, and verify that the checksum passes.
 
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Code39Readerpublic 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.- Parameters:
- 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.
 
 
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Method Details- 
decodeRowpublic Result decodeRow(int rowNumber, BitArray row, Map<DecodeHintType, ?> hints) throws NotFoundException, ChecksumException, FormatExceptionDescription copied from class:OneDReaderAttempts to decode a one-dimensional barcode format given a single row of an image. - Specified by:
- decodeRowin class- OneDReader
- Parameters:
- rowNumber- row number from top of the row
- row- the black/white pixel data of the row
- hints- decode hints
- Returns:
- Resultcontaining encoded string and start/end of barcode
- Throws:
- 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
 
 
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