All Downloads are FREE. Search and download functionalities are using the official Maven repository.

oracle.toplink.essentials.internal.parsing.WhereNode Maven / Gradle / Ivy

There is a newer version: 2.1-60f
Show newest version
/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * // Copyright (c) 1998, 2007, Oracle. All rights reserved.
 * 
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License. You can obtain
 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
 * accompanied this code.  If applicable, add the following below the License
 * Header, with the fields enclosed by brackets [] replaced by your own
 * identifying information: "Portions Copyrighted [year]
 * [name of copyright owner]"
 * 
 * Contributor(s):
 * 
 * If you wish your version of this file to be governed by only the CDDL or
 * only the GPL Version 2, indicate your decision by adding "[Contributor]
 * elects to include this software in this distribution under the [CDDL or GPL
 * Version 2] license."  If you don't indicate a single choice of license, a
 * recipient has the option to distribute your version of this file under
 * either the CDDL, the GPL Version 2 or to extend the choice of license to
 * its licensees as provided above.  However, if you add GPL Version 2 code
 * and therefore, elected the GPL Version 2 license, then the option applies
 * only if the new code is made subject to such option by the copyright
 * holder.
 */
package oracle.toplink.essentials.internal.parsing;

import oracle.toplink.essentials.expressions.Expression;

/**
 * INTERNAL
 * 

Purpose: Represent a WHERE *

Responsibilities:

    *
  • Apply this where clause to a query *
* @author Jon Driscoll * @since TopLink 5.0 */ public class WhereNode extends MajorNode { /** * INTERNAL * Validate node and calculate its type. */ public void validate(ParseTreeContext context) { if (left != null) { left.validate(context); TypeHelper typeHelper = context.getTypeHelper(); setType(typeHelper.getBooleanType()); } } /** * INTERNAL * @param context The generation context * @return A TopLink expression */ public Expression generateExpression(GenerationContext context) { Expression whereClause = null; if (getLeft() != null) { whereClause = getLeft().generateExpression(context); } return whereClause; } }




© 2015 - 2024 Weber Informatics LLC | Privacy Policy