2 * Copyright 2007 ZXing authors
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package com.google.zxing;
20 * Encapsulates a type of hint that a caller may pass to a barcode reader to help it
21 * more quickly or accurately decode it. It is up to implementations to decide what,
22 * if anything, to do with the information that is supplied.
25 * @author dswitkin@google.com (Daniel Switkin)
26 * @see Reader#decode(MonochromeBitmapSource, java.util.Hashtable)
28 public final class DecodeHintType {
30 // No, we can't use an enum here. J2ME doesn't support it.
33 * Unspecified, application-specific hint. Maps to an unspecified {@link Object}.
35 public static final DecodeHintType OTHER = new DecodeHintType();
38 * Image is a pure monochrome image of a barcode. Doesn't matter what it maps to;
39 * use {@link Boolean#TRUE}.
41 public static final DecodeHintType PURE_BARCODE = new DecodeHintType();
44 * Image is known to be of one of a few possible formats.
45 * Maps to a {@link java.util.Vector} of {@link BarcodeFormat}s.
47 public static final DecodeHintType POSSIBLE_FORMATS = new DecodeHintType();
50 * Spend more time to try to find a barcode; optimize for accuracy, not speed.
51 * Doesn't matter what it maps to; use {@link Boolean#TRUE}.
53 public static final DecodeHintType TRY_HARDER = new DecodeHintType();
55 private DecodeHintType() {