1 /*
2 * JasperReports - Free Java Reporting Library.
3 * Copyright (C) 2001 - 2019 TIBCO Software Inc. All rights reserved.
4 * http://www.jaspersoft.com
5 *
6 * Unless you have purchased a commercial license agreement from Jaspersoft,
7 * the following license terms apply:
8 *
9 * This program is part of JasperReports.
10 *
11 * JasperReports is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU Lesser General Public License as published by
13 * the Free Software Foundation, either version 3 of the License, or
14 * (at your option) any later version.
15 *
16 * JasperReports is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU Lesser General Public License for more details.
20 *
21 * You should have received a copy of the GNU Lesser General Public License
22 * along with JasperReports. If not, see <http://www.gnu.org/licenses/>.
23 */
24 package net.sf.jasperreports.engine.query;
25
26
27
28 /**
29 * Base BETWEEN clause function for SQL queries.
30 * <p>
31 * The purpose of this clause function is to find that a given
32 * value can be found in a given A...B interval.
33 * </p>
34 * <p>
35 * The first token in the $X{...} syntax is the function ID token. Possible values for
36 * the BETWEEN clause function ID token are:
37 * <ul>
38 * <li><code>BETWEEN</code> - in this case the A...B interval will be considered open: (A,B)</li>
39 * <li><code>[BETWEEN</code> - in this case the A...B interval will be considered right-open: [A,B)</li>
40 * <li><code>BETWEEN]</code> - in this case the A...B interval will be considered left-open: (A,B]</li>
41 * <li><code>[BETWEEN]</code> - in this case the A...B interval will be considered closed: [A,B]</li>
42 * </ul>
43 * </p>
44 *
45 * @author Sanda Zaharia (shertage@users.sourceforge.net)
46 */
47 public class JRSqlBetweenClause extends SQLBetweenBaseClause
48 {
49
50 protected static final JRSqlBetweenClause singleton = new JRSqlBetweenClause();
51
52 /**
53 * Returns the singleton function instance.
54 *
55 * @return the singleton function instance
56 */
57 public static JRSqlBetweenClause instance()
58 {
59 return singleton;
60 }
61
62 @Override
63 protected ClauseFunctionParameterHandler createParameterHandler(JRQueryClauseContext queryContext,
64 String clauseId, String parameterName, boolean left)
65 {
66 Object paramValue = queryContext.getValueParameter(parameterName).getValue();
67 return new DefaultClauseFunctionParameterHandler(queryContext, parameterName, paramValue);
68 }
69 }
70