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.api.query.qom;
25
26 import javax.jcr.query.qom.Column;
27 import javax.jcr.query.qom.Ordering;
28
29 /**
30 * Represents the abstract base class for all query commands. Subclasses include {@link SetQuery} and {@link SelectQuery}.
31 */
32 public interface QueryCommand {
33
34 /**
35 * Gets the orderings for this query.
36 *
37 * @return an array of zero or more orderings; non-null
38 */
39 public Ordering[] getOrderings();
40
41 /**
42 * Gets the columns for this query.
43 *
44 * @return an array of zero or more columns; non-null
45 */
46 public Column[] getColumns();
47
48 /**
49 * Get the limits associated with this query.
50 *
51 * @return the limits; never null but possibly {@link Limit#isUnlimited() unlimited}
52 */
53 public Limit getLimits();
54 }