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


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, 2005, Oracle. All rights reserved.
22 package oracle.toplink.essentials.internal.parsing;
23
24 /**
25  * INTERNAL
26  * <p><b>Purpose</b>: This is the superclass for all the binary operators in EJBQL
27  * <p><b>Responsibilities</b>:<ul>
28  * <li> The expression generation is delegated to the subclasses
29  * </ul>
30  * @author Jon Driscoll and Joel Lucuik
31  * @since July 2003
32  */
33 public class BinaryOperatorNode extends Node {
34     public BinaryOperatorNode() {
35         super();
36     }
37
38     /**
39      * INTERNAL
40      * Validate the current node and calculates its type.
41      */
42     public void validate(ParseTreeContext context) {
43         super.validate(context);
44         if ((left != null) && (right != null)) {
45             left.validateParameter(context, right.getType());
46             right.validateParameter(context, left.getType());
47         }
48     }
49
50 }
51
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