1 /*
2 * Sonar, entreprise quality control tool.
3 * Copyright (C) 2007-2008 Hortis-GRC SA
4 * mailto:be_agile HAT hortis DOT ch
5 *
6 * Sonar is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 3 of the License, or (at your option) any later version.
10 *
11 * Sonar is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with Sonar; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02
19 */
20 package org.sonar.commons.database;
21
22 import javax.persistence.EntityManager;
23 import javax.persistence.Query;
24
25 public interface DatabaseManager {
26 void start();
27
28 void stop();
29
30 EntityManager getEntityManager();
31
32 Object save(Object model);
33
34 Object merge(Object model);
35
36 void remove(Object model);
37
38 <T> T reattach(Class<T> entityClass, Object primaryKey);
39
40 void commit();
41
42 void rollback();
43
44 Query createQuery(String hql);
45
46 Query createNamedQuery(String hql);
47
48 Object getSingleResult(Query query, Object defaultValue);
49
50
51 }