2 * $Id: QueryCriteria.java,v 1.1 2004/11/06 16:20:48 idfx Exp $
4 * Copyright (C) 2001, 2002, 2003, 2004 The Mir-coders group
6 * This file is part of Mir.
8 * Mir is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * Mir is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with Mir; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * In addition, as a special exception, The Mir-coders gives permission to link
23 * the code of this program with any library licensed under the Apache Software License,
24 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
25 * (or with modified versions of the above that use the same license as the above),
26 * and distribute linked combinations including the two. You must obey the
27 * GNU General Public License in all respects for all of the code used other than
28 * the above mentioned libraries. If you modify this file, you may extend this
29 * exception to your version of the file, but you are not obligated to do so.
30 * If you do not wish to do so, delete this exception statement from your version.
32 package org.codecoop.mir.core.dao.hibernate;
34 import net.sf.hibernate.Criteria;
35 import net.sf.hibernate.HibernateException;
37 import org.codecoop.mir.core.dao.DatabaseFailure;
38 import org.codecoop.mir.core.dao.IQueryCriteria;
39 import org.codecoop.mir.core.dao.IQueryExpression;
40 import org.codecoop.mir.core.dao.IQueryOrder;
41 import org.codecoop.mir.core.dao.QueryFailure;
46 * @version $Revision: 1.1 $
48 public class QueryCriteria implements IQueryCriteria {
49 private Criteria _criteria;
52 * @param persistentClass
53 * @throws QueryFailure
55 public QueryCriteria(Class persistentClass) throws QueryFailure {
57 _criteria = HibernateSessionManager.getSession().createCriteria(persistentClass);
58 } catch (DatabaseFailure e) {
59 throw new QueryFailure(e);
66 private QueryCriteria(Criteria criteria) {
71 * @see org.codecoop.mir.core.dao.IQueryCriteria#add(org.codecoop.mir.core.query.IQueryExpression)
73 public IQueryCriteria add(IQueryExpression expression) {
74 if(expression instanceof QueryExpression){
75 _criteria.add(((QueryExpression)expression).expression());
81 * @see org.codecoop.mir.core.dao.IQueryCriteria#addOrder(org.codecoop.mir.core.query.IQueryOrder)
83 public IQueryCriteria addOrder(IQueryOrder order) {
84 if(order instanceof QueryOrder){
85 _criteria.addOrder(((QueryOrder)order).order());
91 * @see org.codecoop.mir.core.dao.IQueryCriteria#setLimit(int)
93 public IQueryCriteria setLimit(int limit) {
94 _criteria.setMaxResults(limit);
99 * @see org.codecoop.mir.core.dao.IQueryCriteria#setOffset(int)
101 public IQueryCriteria setOffset(int offset) {
102 _criteria.setFirstResult(offset);
107 * @see org.codecoop.mir.core.query.IQueryCriteria#createCriteria(java.lang.String)
109 public IQueryCriteria createCriteria(String property) throws DatabaseFailure {
111 Criteria c = _criteria.createCriteria(property);
112 QueryCriteria queryCriteria = new QueryCriteria(c);
113 return queryCriteria;
114 } catch (HibernateException e) {
115 throw new DatabaseFailure(e);
122 public Criteria criteria() {