DecodeHintType<T> class
Encapsulates a type of hint that a caller may pass to a barcode reader to help it more quickly or accurately decode it. It is up to implementations to decide what, if anything, to do with the information that is supplied.
@author Sean Owen @author dswitkin@google.com (Daniel Switkin) @see Reader#decode(BinaryBitmap,java.util.Map)
Constructors
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Properties
-
allowedEanExtensions
→ DecodeHintType<
List< int> > -
Allowed extension lengths for EAN or UPC barcodes. Other formats will ignore this.
Maps to an {@code int[]} of the allowed extension lengths, for example
2,5, or2, 5. If it is optional to have an extension, do not set this hint. If this is set, and a UPC or EAN barcode is found but an extension is not, then no result will be returned at all.final -
allowedLengths
→ DecodeHintType<
List< int> > -
Allowed lengths of encoded data -- reject anything else. Maps to an {@code int[]}.
final
-
assumeCode39CheckDigit
→ DecodeHintType<
void> -
Assume Code 39 codes employ a check digit. Doesn't matter what it maps to;
use {@link Boolean#TRUE}.
final
-
assumeGs1
→ DecodeHintType<
void> -
Assume the barcode is being processed as a GS1 barcode, and modify behavior as needed.
For example this affects FNC1 handling for Code 128 (aka GS1-128). Doesn't matter what it maps to;
use {@link Boolean#TRUE}.
final
-
characterSet
→ DecodeHintType<
String> -
Specifies what character encoding to use when decoding, where applicable (type String)
final
-
needResultPointCallback
→ DecodeHintType<
ResultPointCallback> -
The caller needs to be notified via callback when a possible {@link ResultPoint}
is found. Maps to a {@link ResultPointCallback}.
final
-
other
→ DecodeHintType<
Object> -
Unspecified, application-specific hint. Maps to an unspecified {@link Object}.
final
-
possibleFormats
→ DecodeHintType<
List< BarcodeFormat> > -
Image is known to be of one of a few possible formats.
Maps to a {@link List} of {@link BarcodeFormat}s.
final
-
pureBarcode
→ DecodeHintType<
void> -
Image is a pure monochrome image of a barcode. Doesn't matter what it maps to;
use {@link Boolean#TRUE}.
final
-
returnCodabarStartEnd
→ DecodeHintType<
void> -
If true, return the start and end digits in a Codabar barcode instead of stripping them. They
are alpha, whereas the rest are numeric. By default, they are stripped, but this causes them
to not be. Doesn't matter what it maps to; use {@link Boolean#TRUE}.
final
-
tryHarder
→ DecodeHintType<
void> -
Spend more time to try to find a barcode; optimize for accuracy, not speed.
Doesn't matter what it maps to; use {@link Boolean#TRUE}.
final