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Java > Open Source Codes > org > riotfamily > riot > hibernate > dao > HqlSortedCollectionDao


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) 2006
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.hibernate.dao;
25
26 import java.util.Collection JavaDoc;
27 import java.util.List JavaDoc;
28
29 import org.riotfamily.common.beans.PropertyUtils;
30 import org.riotfamily.riot.dao.ListParams;
31 import org.riotfamily.riot.dao.SwappableItemDao;
32
33 public class HqlSortedCollectionDao extends HqlCollectionDao
34         implements SwappableItemDao {
35
36     private String JavaDoc positionProperty;
37     
38     public void setPositionProperty(String JavaDoc positionProperty) {
39         this.positionProperty = positionProperty;
40     }
41
42     public void swapEntity(Object JavaDoc entity, Object JavaDoc parent, ListParams params,
43             int swapWith) {
44         
45         List JavaDoc items = listInternal(parent, params);
46         Object JavaDoc nextItem = items.get(swapWith);
47         
48         Collection JavaDoc c = getCollection(parent);
49         c.remove(entity);
50         c.remove(nextItem);
51         
52         Object JavaDoc pos1 = PropertyUtils.getProperty(entity, positionProperty);
53         Object JavaDoc pos2 = PropertyUtils.getProperty(nextItem, positionProperty);
54         
55         PropertyUtils.setProperty(entity, positionProperty, pos2);
56         PropertyUtils.setProperty(nextItem, positionProperty, pos1);
57         
58         c.add(entity);
59         c.add(nextItem);
60         
61         getSession().update(entity);
62         getSession().update(nextItem);
63     }
64
65     
66 }
67
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