KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > riotfamily > riot > hibernate > workflow > status > HqlStatusMonitor


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.workflow.status;
25
26 import java.sql.SQLException JavaDoc;
27
28 import org.hibernate.HibernateException;
29 import org.hibernate.Query;
30 import org.hibernate.Session;
31 import org.hibernate.SessionFactory;
32 import org.riotfamily.riot.workflow.status.support.AbstractStatusMonitor;
33 import org.springframework.orm.hibernate3.HibernateCallback;
34 import org.springframework.orm.hibernate3.HibernateTemplate;
35
36 public class HqlStatusMonitor extends AbstractStatusMonitor {
37     
38     private SessionFactory sessionFactory;
39     
40     private String JavaDoc hql;
41     
42     
43     public void setSessionFactory(SessionFactory sessionFactory) {
44         this.sessionFactory = sessionFactory;
45     }
46
47     public void setHql(String JavaDoc hql) {
48         this.hql = hql;
49     }
50
51     protected Object JavaDoc[] getArgs() {
52         Object JavaDoc result = new HibernateTemplate(sessionFactory).execute(
53                 new HibernateCallback() {
54                     
55             public Object JavaDoc doInHibernate(Session session)
56                     throws HibernateException, SQLException JavaDoc {
57                 
58                 Query query = session.createQuery(hql);
59                 return query.uniqueResult();
60             }
61         });
62         
63         if (result == null) {
64             return null;
65         }
66         else if (result instanceof Object JavaDoc[]) {
67             return (Object JavaDoc[]) result;
68         }
69         else {
70             return new Object JavaDoc[] { result };
71         }
72     }
73
74 }
75
Popular Tags