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1   /*
2   Copyright (c) 2008 Health Market Science, Inc.
3   
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
7   
8       http://www.apache.org/licenses/LICENSE-2.0
9   
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.
15  */
16  
17  package com.healthmarketscience.jackcess.util;
18  
19  import java.io.IOException;
20  import com.healthmarketscience.jackcess.Column;
21  
22  /**
23   * Simple implementation of an ErrorHandler which always returns the
24   * configured object.
25   * 
26   * @author James Ahlborn
27   * @usage _intermediate_class_
28   */
29  public class ReplacementErrorHandler implements ErrorHandler
30  {
31  
32    private final Object _replacement;
33  
34    /**
35     * Constructs a ReplacementErrorHandler which replaces all errored values
36     * with {@code null}.
37     */
38    public ReplacementErrorHandler() {
39      this(null);
40    }
41  
42    /**
43     * Constructs a ReplacementErrorHandler which replaces all errored values
44     * with the given Object.
45     */
46    public ReplacementErrorHandler(Object replacement) {
47      _replacement = replacement;
48    }
49  
50    public Object handleRowError(Column column, byte[] columnData,
51                                 Location location, Exception error)
52      throws IOException
53    {
54      return _replacement;
55    }
56  
57  }