2 * Copyright 2008 Google Inc.
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.oned;
19 import com.google.zxing.Reader;
20 import com.google.zxing.ReaderException;
21 import com.google.zxing.Result;
22 import com.google.zxing.common.BitArray;
25 * <p>{@link Reader}s which also implement this interface read one-dimensional barcode
26 * formats, and expose additional functionality that is specific to this type of barcode.</p>
28 * @author srowen@google.com (Sean Owen)
30 public interface OneDReader extends Reader {
33 * <p>Attempts to decode a one-dimensional barcode format given a single row of
36 * @param rowNumber row number from top of the row
37 * @param row the black/white pixel data of the row
38 * @return {@link Result} containing encoded string and start/end of barcode
39 * @throws ReaderException if an error occurs or barcode cannot be found
41 Result decodeRow(int rowNumber, BitArray row) throws ReaderException;