Enum ChecksumValidation
- java.lang.Object
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- java.lang.Enum<ChecksumValidation>
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- com.aspose.barcode.barcoderecognition.ChecksumValidation
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Comparable<ChecksumValidation>
public enum ChecksumValidation extends java.lang.Enum<ChecksumValidation>
Enable checksum validation during recognition for 1D and Postal barcodes.
Default is treated as Yes for symbologies which must contain checksum, as No where checksum only possible.
Checksum never used: Codabar, PatchCode, Pharmacode, DataLogic2of5
Checksum is possible: Code39 Standard/Extended, Standard2of5, Interleaved2of5, ItalianPost25, Matrix2of5, MSI, ItalianPost25, DeutschePostIdentcode, DeutschePostLeitcode, VIN
Checksum always used: Rest symbologies
This sample shows influence of ChecksumValidation on recognition quality and results
BarcodeGenerator generator = new BarcodeGenerator(EncodeTypes.EAN_13, "1234567890128"); { generator.save("c:\\test.png"); } BarCodeReader reader = new BarCodeReader("c:\\test.png", DecodeType.EAN_13)) { //checksum disabled reader.getBarcodeSettings().setChecksumValidation(ChecksumValidation.OFF); for(BarCodeResult result : reader.readBarCodes()) { System.out.println("BarCode CodeText: " + result.getCodeText()); System.out.println("BarCode Value: " + result.getExtended().getOneD().getValue()); System.out.println("BarCode Checksum: " + result.getExtended().getOneD().getCheckSum()); } } BarCodeReader reader = new BarCodeReader("c:\\test.png", DecodeType.EAN_13); //checksum enabled reader.getBarcodeSettings().setChecksumValidation(ChecksumValidation.ON); for(BarCodeResult result : reader.readBarCodes()) { System.out.println("BarCode CodeText: " + result.getCodeText()); System.out.println("BarCode Value: " + result.getExtended().getOneD().getValue()); System.out.println("BarCode Checksum: " + result.getExtended().getOneD().getCheckSum()); }
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description int
getValue()
static ChecksumValidation
valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name.static ChecksumValidation[]
values()
Returns an array containing the constants of this enum type, in the order they are declared.
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Enum Constant Detail
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DEFAULT
public static final ChecksumValidation DEFAULT
If checksum is required by the specification - it will be validated.
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ON
public static final ChecksumValidation ON
Always validate checksum if possible.
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OFF
public static final ChecksumValidation OFF
Do not validate checksum.
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Method Detail
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values
public static ChecksumValidation[] values()
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:for (ChecksumValidation c : ChecksumValidation.values()) System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in the order they are declared
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valueOf
public static ChecksumValidation valueOf(java.lang.String name)
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)- Parameters:
name
- the name of the enum constant to be returned.- Returns:
- the enum constant with the specified name
- Throws:
java.lang.IllegalArgumentException
- if this enum type has no constant with the specified namejava.lang.NullPointerException
- if the argument is null
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getValue
public int getValue()
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