KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > objectstyle > cayenne > exp > parser > ASTLikeIgnoreCase


1 /* ====================================================================
2  *
3  * The ObjectStyle Group Software License, version 1.1
4  * ObjectStyle Group - http://objectstyle.org/
5  *
6  * Copyright (c) 2002-2005, Andrei (Andrus) Adamchik and individual authors
7  * of the software. All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright
14  * notice, this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright
17  * notice, this list of conditions and the following disclaimer in
18  * the documentation and/or other materials provided with the
19  * distribution.
20  *
21  * 3. The end-user documentation included with the redistribution, if any,
22  * must include the following acknowlegement:
23  * "This product includes software developed by independent contributors
24  * and hosted on ObjectStyle Group web site (http://objectstyle.org/)."
25  * Alternately, this acknowlegement may appear in the software itself,
26  * if and wherever such third-party acknowlegements normally appear.
27  *
28  * 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse
29  * or promote products derived from this software without prior written
30  * permission. For written permission, email
31  * "andrus at objectstyle dot org".
32  *
33  * 5. Products derived from this software may not be called "ObjectStyle"
34  * or "Cayenne", nor may "ObjectStyle" or "Cayenne" appear in their
35  * names without prior written permission.
36  *
37  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
38  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
39  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40  * DISCLAIMED. IN NO EVENT SHALL THE OBJECTSTYLE GROUP OR
41  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
44  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
45  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
46  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
47  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48  * SUCH DAMAGE.
49  * ====================================================================
50  *
51  * This software consists of voluntary contributions made by many
52  * individuals and hosted on ObjectStyle Group web site. For more
53  * information on the ObjectStyle Group, please see
54  * <http://objectstyle.org/>.
55  */
56 package org.objectstyle.cayenne.exp.parser;
57
58 import org.objectstyle.cayenne.exp.Expression;
59 import org.objectstyle.cayenne.util.ConversionUtil;
60
61 /**
62  * "Case insensitive like" expression.
63  *
64  * @author Andrei Adamchik
65  */
66 public class ASTLikeIgnoreCase extends PatternMatchNode {
67     ASTLikeIgnoreCase(int id) {
68         super(id, true);
69     }
70
71     public ASTLikeIgnoreCase() {
72         super(ExpressionParserTreeConstants.JJTLIKEIGNORECASE, true);
73     }
74
75     public ASTLikeIgnoreCase(ASTPath path, Object JavaDoc pattern) {
76         super(ExpressionParserTreeConstants.JJTLIKEIGNORECASE, true);
77         jjtAddChild(path, 0);
78         jjtAddChild(wrapChild(pattern), 1);
79     }
80
81     protected Object JavaDoc evaluateNode(Object JavaDoc o) throws Exception JavaDoc {
82         int len = jjtGetNumChildren();
83         if (len != 2) {
84             return Boolean.FALSE;
85         }
86
87         String JavaDoc s1 = ConversionUtil.toString(evaluateChild(0, o));
88         if (s1 == null) {
89             return Boolean.FALSE;
90         }
91
92         return matchPattern(s1) ? Boolean.TRUE : Boolean.FALSE;
93     }
94
95     /**
96      * Creates a copy of this expression node, without copying children.
97      */
98     public Expression shallowCopy() {
99         return new ASTLikeIgnoreCase(id);
100     }
101
102     protected String JavaDoc getExpressionOperator(int index) {
103         return "likeIgnoreCase";
104     }
105
106     public int getType() {
107         return Expression.LIKE_IGNORE_CASE;
108     }
109 }
110
Popular Tags