Package com.google.zxing.qrcode.decoder

Enum ErrorCorrectionLevel

java.lang.Object

java.lang.Enum<ErrorCorrectionLevel>

com.google.zxing.qrcode.decoder.ErrorCorrectionLevel

All Implemented Interfaces:

Serializable, Comparable<ErrorCorrectionLevel>

public enum ErrorCorrectionLevel
extends Enum<ErrorCorrectionLevel>

See ISO 18004:2006, 6.5.1. This enum encapsulates the four error correction levels defined by the QR code standard.

Author:

Sean Owen

Enum Constant Summary

Enum Constants

Enum Constant	Description
H	H = ~30% correction
L	L = ~7% correction
M	M = ~15% correction
Q	Q = ~25% correction

Method Summary

Modifier and Type	Method	Description
static ErrorCorrectionLevel	forBits(int bits)
int	getBits()
static ErrorCorrectionLevel	valueOf(String name)	Returns the enum constant of this type with the specified name.
static ErrorCorrectionLevel[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

L

public static final ErrorCorrectionLevel L

L = ~7% correction

M

public static final ErrorCorrectionLevel M

M = ~15% correction

Q

public static final ErrorCorrectionLevel Q

Q = ~25% correction

H

public static final ErrorCorrectionLevel H

H = ~30% correction

Method Detail

values

public static ErrorCorrectionLevel[] 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 (ErrorCorrectionLevel c : ErrorCorrectionLevel.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ErrorCorrectionLevel valueOf(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:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getBits

public int getBits()

forBits

public static ErrorCorrectionLevel forBits(int bits)

Parameters:

bits - int containing the two bits encoding a QR Code's error correction level

Returns:

ErrorCorrectionLevel representing the encoded error correction level