Source code: openfuture/bugbase/model/BugReportDoctorComparator.java
1 package openfuture.bugbase.model;
2 /*
3 * This library is free software; you can redistribute it and/or
4 * modify it under the terms of the GNU Lesser General Public
5 * License as published by the Free Software Foundation; either
6 * version 2 of the License, or (at your option) any later version.<p>
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 * Lesser General Public License for more details.<p>
12 *
13 * You should have received a copy of the GNU Lesser General Public
14 * License along with this library; if not, write to the Free Software
15 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA<br>
16 * http://www.gnu.org/copyleft/lesser.html
17 */
18
19 import java.util.Comparator;
20 import openfuture.bugbase.domain.BugReport;
21
22 // Configuration Management Information:
23 // -------------------------------------
24 // $Id: BugReportDoctorComparator.java,v 1.3 2001/07/01 06:46:30 wreissen Exp $
25 //
26 // Version History:
27 // ----------------
28 // $Log: BugReportDoctorComparator.java,v $
29 // Revision 1.3 2001/07/01 06:46:30 wreissen
30 // fixed errors in DOS/Unix-translation.
31 //
32 // Revision 1.1 2001/04/03 05:21:43 wreissen
33 // initial version
34 //
35 //
36 // ***********************************************************************************
37 /**
38 * Compare two objects. If <code>o1</code> and <code>o1</code> are
39 * {@link openfuture.bugbase.domain.BugReport bug reports}, their
40 * {@link openfuture.bugbase.domain.BugReport#getDoctor() doctor}
41 * is compared.<p>
42 *
43 *
44 * Created: Fri Mar 30 23:45:19 2001
45 *
46 * @author <a href="mailto:wolfgang@openfuture.de">Wolfgang Reissenberger</a>
47 * @version $Revision: 1.3 $
48 */
49
50 public class BugReportDoctorComparator implements Comparator {
51
52 /*
53 * Compare two objects. If <code>o1</code> and <code>o1</code> are
54 * {@link openfuture.bugbase.domain.BugReport bug reports}, their
55 * {@link openfuture.bugbase.domain.BugReport#getDoctor() doctor}
56 * is compared.
57 *
58 * @param o1 a value of type 'Object'
59 * @param o2 a value of type 'Object'
60 * @return -1 if <code>o1</code> is smaller, 1 if <code>o1</code>
61 * is greater and 0 of <code>o1</code> is equal to
62 * <code>o2</code>.
63 */
64 public int compare(Object o1, Object o2) {
65 if (o1 == null && o2 == null) return 0;
66 if (o1 == null) return -1;
67 if (o2 == null) return 1;
68
69 if (o1 instanceof BugReport && o2 instanceof BugReport) {
70 BugReport report1 = (BugReport)o1;
71 BugReport report2 = (BugReport)o2;
72
73 if (report1.getDoctor() == null && report2.getDoctor() == null)
74 return 0;
75 if (report1.getDoctor() == null) return -1;
76 if (report2.getDoctor() == null) return 1;
77
78 int result = report1.getDoctor().compareTo(report2.getDoctor());
79
80 if (result != 0) return result;
81 return(BugReportIdComparator.compareId(report1.getId(),
82 report2.getId()));
83
84 } else {
85 throw new IllegalArgumentException();
86 }
87 }
88 } // BugReportDoctorComparator