1 /*
2 * EL4J, the Extension Library for the J2EE, adds incremental enhancements to
3 * the spring framework, http://el4j.sf.net
4 * Copyright (C) 2005 by ELCA Informatique SA, Av. de la Harpe 22-24,
5 * 1000 Lausanne, Switzerland, http://www.elca.ch
6 *
7 * EL4J is published under the GNU Lesser General Public License (LGPL)
8 * Version 2.1. See http://www.gnu.org/licenses/
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU Lesser General Public License for more details.
14 *
15 * For alternative licensing, please contact info@elca.ch
16 */
17
18 package ch.elca.el4j.services.persistence.generic.dto;
19
20 import ch.elca.el4j.util.codingsupport.ObjectUtils;
21
22 /**
23 * This class adds to the <code>AbstractDto</code> a primary key as a string.
24 *
25 * @svnLink $Revision: 3873 $;$Date: 2009-08-04 13:59:45 +0200 (Di, 04. Aug 2009) $;$Author: swismer $;$URL: https://el4j.svn.sourceforge.net/svnroot/el4j/branches/el4j_3_1/el4j/framework/modules/core/src/main/java/ch/elca/el4j/services/persistence/generic/dto/AbstractStringKeyDto.java $
26 *
27 * @deprecated Please use <code>AbstractStringKeyIntOptimisticLockingDto</code>
28 * instead.
29 * @see AbstractStringKeyIntOptimisticLockingDto
30 * @author Martin Zeltner (MZE)
31 */
32 public abstract class AbstractStringKeyDto extends AbstractDto {
33 /**
34 * Primary key.
35 */
36 private String m_key;
37
38 /**
39 * @return Returns the key.
40 */
41 public String getKey() {
42 return m_key;
43 }
44
45 /**
46 * @param key
47 * The key to set.
48 */
49 public void setKey(String key) {
50 m_key = key;
51 }
52
53 /**
54 * {@inheritDoc}
55 */
56 public int hashCode() {
57 return (m_key != null) ? m_key.hashCode() : 0;
58 }
59
60 /**
61 * {@inheritDoc}
62 */
63 public boolean equals(Object obj) {
64 if (obj instanceof AbstractStringKeyDto) {
65 AbstractStringKeyDto other = (AbstractStringKeyDto) obj;
66 return ObjectUtils.nullSaveEquals(m_key, other.m_key);
67 } else {
68 return false;
69 }
70 }
71 }