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Java > Open Source Codes > org > riotfamily > riot > dao > support > StaticRiotDao


1 /* ***** BEGIN LICENSE BLOCK *****
2  * Version: MPL 1.1
3  * The contents of this file are subject to the Mozilla Public License Version
4  * 1.1 (the "License"); you may not use this file except in compliance with
5  * the License. You may obtain a copy of the License at
6  * http://www.mozilla.org/MPL/
7  *
8  * Software distributed under the License is distributed on an "AS IS" basis,
9  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
10  * for the specific language governing rights and limitations under the
11  * License.
12  *
13  * The Original Code is Riot.
14  *
15  * The Initial Developer of the Original Code is
16  * Neteye GmbH.
17  * Portions created by the Initial Developer are Copyright (C) 2007
18  * the Initial Developer. All Rights Reserved.
19  *
20  * Contributor(s):
21  * Felix Gnass [fgnass at neteye dot de]
22  *
23  * ***** END LICENSE BLOCK ***** */
24 package org.riotfamily.riot.dao.support;
25
26 import java.util.Collection JavaDoc;
27 import java.util.List JavaDoc;
28
29 import org.riotfamily.riot.dao.ListParams;
30 import org.springframework.dao.DataAccessException;
31 import org.springframework.util.Assert;
32
33 /**
34  * @author Felix Gnass [fgnass at neteye dot de]
35  * @since 6.5
36  */
37 public class StaticRiotDao extends RiotDaoAdapter {
38
39     private List JavaDoc items;
40     
41     private Class JavaDoc entityClass;
42     
43     public StaticRiotDao(List JavaDoc items) {
44         Assert.notEmpty(items);
45         this.items = items;
46     }
47
48     public void setEntityClass(Class JavaDoc entityClass) {
49         this.entityClass = entityClass;
50     }
51     
52     public Class JavaDoc getEntityClass() {
53         if (entityClass == null) {
54             entityClass = items.get(0).getClass();
55         }
56         return entityClass;
57     }
58     
59     public Collection JavaDoc list(Object JavaDoc parent, ListParams params) {
60         return items;
61     }
62     
63     public String JavaDoc getObjectId(Object JavaDoc entity) {
64         int index = items.indexOf(entity);
65         Assert.isTrue(index != -1, "Item not found in list. Make sure " +
66                 "hashCode() and equals() are properly implemented.");
67         
68         return String.valueOf(index);
69     }
70     
71     public Object JavaDoc load(String JavaDoc id) throws DataAccessException {
72         int index = Integer.parseInt(id);
73         return items.get(index);
74     }
75 }
76
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