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 * SQL "NOT IN" clause function.
29 *
30 * @author Lucian Chirita (lucianc@users.sourceforge.net)
31 * @see #apply(JRClauseTokens, JRQueryClauseContext)
32 */
33 public class JRSqlNotInClause extends JRSqlAbstractInClause
34 {
35
36 protected static final String OPERATOR_NOT_IN = "NOT IN";
37 protected static final String OPERATOR_NULL = "IS NOT NULL";
38 protected static final String OPERATOR_AND_OR = " AND ";
39
40 protected static final JRSqlNotInClause singleton = new JRSqlNotInClause();
41
42 /**
43 * Returns the singleton function instance.
44 *
45 * @return the singleton function instance
46 */
47 public static JRSqlNotInClause instance()
48 {
49 return singleton;
50 }
51
52 @Override
53 protected void appendInOperator(StringBuffer sBuffer)
54 {
55 sBuffer.append(OPERATOR_NOT_IN);
56 }
57
58 @Override
59 protected void appendNullOperator(StringBuffer sBuffer)
60 {
61 sBuffer.append(OPERATOR_NULL);
62 }
63
64 @Override
65 protected void appendAndOrOperator(StringBuffer sBuffer)
66 {
67 sBuffer.append(OPERATOR_AND_OR);
68 }
69 }
70