01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * // Copyright (c) 1998, 2007, Oracle. All rights reserved.
05: *
06: *
07: * The contents of this file are subject to the terms of either the GNU
08: * General Public License Version 2 only ("GPL") or the Common Development
09: * and Distribution License("CDDL") (collectively, the "License"). You
10: * may not use this file except in compliance with the License. You can obtain
11: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
12: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
13: * language governing permissions and limitations under the License.
14: *
15: * When distributing the software, include this License Header Notice in each
16: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
17: * Sun designates this particular file as subject to the "Classpath" exception
18: * as provided by Sun in the GPL Version 2 section of the License file that
19: * accompanied this code. If applicable, add the following below the License
20: * Header, with the fields enclosed by brackets [] replaced by your own
21: * identifying information: "Portions Copyrighted [year]
22: * [name of copyright owner]"
23: *
24: * Contributor(s):
25: *
26: * If you wish your version of this file to be governed by only the CDDL or
27: * only the GPL Version 2, indicate your decision by adding "[Contributor]
28: * elects to include this software in this distribution under the [CDDL or GPL
29: * Version 2] license." If you don't indicate a single choice of license, a
30: * recipient has the option to distribute your version of this file under
31: * either the CDDL, the GPL Version 2 or to extend the choice of license to
32: * its licensees as provided above. However, if you add GPL Version 2 code
33: * and therefore, elected the GPL Version 2 license, then the option applies
34: * only if the new code is made subject to such option by the copyright
35: * holder.
36: */
37: package oracle.toplink.essentials.internal.parsing;
38:
39: import oracle.toplink.essentials.expressions.*;
40:
41: public class EscapeNode extends LogicalOperatorNode {
42:
43: public EscapeNode() {
44: }
45:
46: /**
47: * INTERNAL
48: * Is this an escape node
49: */
50: public boolean isEscape() {
51: return true;// Yes it is
52: }
53:
54: /**
55: * INTERNAL
56: * Validate the current node and calculates its type.
57: */
58: public void validate(ParseTreeContext context) {
59:
60: TypeHelper typeHelper = context.getTypeHelper();
61: if (left != null) {
62: left.validate(context);
63: left.validateParameter(context, typeHelper.getCharType());
64: }
65:
66: setType(getType());
67: }
68:
69: public Expression generateExpression(GenerationContext context) {
70: Expression whereClause = left.generateExpression(context);
71: return whereClause;
72:
73: }
74: }
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