KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > oracle > toplink > essentials > internal > parsing > EscapeNode


1 /*
2  * The contents of this file are subject to the terms
3  * of the Common Development and Distribution License
4  * (the "License"). You may not use this file except
5  * in compliance with the License.
6  *
7  * You can obtain a copy of the license at
8  * glassfish/bootstrap/legal/CDDLv1.0.txt or
9  * https://glassfish.dev.java.net/public/CDDLv1.0.html.
10  * See the License for the specific language governing
11  * permissions and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL
14  * HEADER in each file and include the License file at
15  * glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable,
16  * add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your
18  * own identifying information: Portions Copyright [yyyy]
19  * [name of copyright owner]
20  */
21 // Copyright (c) 1998, 2006, Oracle. All rights reserved.
22 package oracle.toplink.essentials.internal.parsing;
23
24 import oracle.toplink.essentials.expressions.*;
25
26 public class EscapeNode extends LogicalOperatorNode {
27
28     public EscapeNode() {
29     }
30
31     /**
32      * INTERNAL
33      * Is this an escape node
34      */
35     public boolean isEscape() {
36         return true;// Yes it is
37 }
38
39     /**
40      * INTERNAL
41      * Validate the current node and calculates its type.
42      */
43     public void validate(ParseTreeContext context) {
44         
45         TypeHelper typeHelper = context.getTypeHelper();
46         if (left != null) {
47             left.validate(context);
48             left.validateParameter(context, typeHelper.getCharType());
49         }
50         
51         setType(getType());
52     }
53
54     public Expression generateExpression(GenerationContext context) {
55         Expression whereClause = left.generateExpression(context);
56         return whereClause;
57
58     }
59 }
60
Popular Tags