1 /*
2 * ModeShape (http://www.modeshape.org)
3 * See the COPYRIGHT.txt file distributed with this work for information
4 * regarding copyright ownership. Some portions may be licensed
5 * to Red Hat, Inc. under one or more contributor license agreements.
6 * See the AUTHORS.txt file in the distribution for a full listing of
7 * individual contributors.
8 *
9 * ModeShape is free software. Unless otherwise indicated, all code in ModeShape
10 * is licensed to you under the terms of the GNU Lesser General Public License as
11 * published by the Free Software Foundation; either version 2.1 of
12 * the License, or (at your option) any later version.
13 *
14 * ModeShape is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this software; if not, write to the Free
21 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
23 */
24 package org.modeshape.jcr.query.qom;
25
26 import javax.jcr.query.qom.QueryObjectModelConstants;
27 import org.modeshape.graph.query.model.Order;
28 import org.modeshape.graph.query.model.Ordering;
29
30 /**
31 * The implementation of the JCR Query Object Model's {@link javax.jcr.query.qom.Ordering}.
32 */
33 public class JcrOrdering extends Ordering implements javax.jcr.query.qom.Ordering {
34
35 private static final long serialVersionUID = 1L;
36
37 /**
38 * Create a new ordering specification, given the supplied operand and order.
39 *
40 * @param operand the operand being ordered
41 * @param order the order type
42 * @throws IllegalArgumentException if the operand or order type is null
43 */
44 public JcrOrdering( JcrDynamicOperand operand,
45 Order order ) {
46 super(operand, order);
47 }
48
49 /**
50 * {@inheritDoc}
51 *
52 * @see org.modeshape.graph.query.model.Ordering#operand()
53 */
54 @Override
55 public JcrDynamicOperand operand() {
56 return (JcrDynamicOperand)super.operand();
57 }
58
59 /**
60 * {@inheritDoc}
61 *
62 * @see javax.jcr.query.qom.Ordering#getOperand()
63 */
64 @Override
65 public JcrDynamicOperand getOperand() {
66 return operand();
67 }
68
69 /**
70 * {@inheritDoc}
71 *
72 * @see javax.jcr.query.qom.Ordering#getOrder()
73 */
74 @Override
75 public String getOrder() {
76 switch (order()) {
77 case ASCENDING:
78 return QueryObjectModelConstants.JCR_ORDER_ASCENDING;
79 case DESCENDING:
80 return QueryObjectModelConstants.JCR_ORDER_DESCENDING;
81 }
82 assert false;
83 return null;
84 }
85 }