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1   /**
2    * Copyright 2005 Steve Molloy
3    * 
4    * This file is part of OV4J.
5    * 
6    * OV4J is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as
7    * published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
8    * 
9    * OV4J is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
10   * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
11   * 
12   * You should have received a copy of the GNU General Public License along with OV4J; if not, write to the Free Software
13   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
14   * 
15   */
16  package org.ov4j.comp;
17  
18  import java.util.logging.Level;
19  import java.util.logging.Logger;
20  
21  /**
22   * Default class for comparing objects, will only call Object.equals() to perform comparison.
23   * 
24   * @author smolloy
25   * 
26   */
27  public class DefaultComparisonResult extends ComparisonResult<Object> {
28  	/**
29  	 * Logger for this class
30  	 */
31  	private static final Logger	logger	= Logger.getLogger(DefaultComparisonResult.class.getName());
32  
33  	/**
34  	 * @see org.ov4j.comp.ComparisonResult#compute()
35  	 */
36  	@Override
37  	public void compute() {
38  		if (DefaultComparisonResult.logger.isLoggable(Level.FINER)) {
39  			DefaultComparisonResult.logger.entering("DefaultComparisonResult", "compute()", "start");
40  		}
41  
42  		if (getOriginal() != null && getChanged() != null && getOriginal().equals(getChanged())) {
43  			setPrecision(1.0);
44  			setRecall(1.0);
45  		} else {
46  			setPrecision(0.0);
47  			setRecall(0.0);
48  		}
49  
50  		if (DefaultComparisonResult.logger.isLoggable(Level.FINER)) {
51  			DefaultComparisonResult.logger.exiting("DefaultComparisonResult", "compute()", "end");
52  		}
53  	}
54  
55  	/**
56  	 * @see org.ov4j.comp.ComparisonResult#fastCompute()
57  	 */
58  	@Override
59  	public void fastCompute() {
60  		if (DefaultComparisonResult.logger.isLoggable(Level.FINER)) {
61  			DefaultComparisonResult.logger.entering("DefaultComparisonResult", "fastCompute()", "start");
62  		}
63  
64  		if (getOriginal() != null && getChanged() != null && getOriginal().equals(getChanged())) {
65  			setPrecision(1.0);
66  		} else {
67  			setPrecision(0.0);
68  		}
69  
70  		if (DefaultComparisonResult.logger.isLoggable(Level.FINER)) {
71  			DefaultComparisonResult.logger.exiting("DefaultComparisonResult", "fastCompute()", "end => "
72  				+ getPrecision());
73  		}
74  	}
75  
76  }