org.eclipse.persistence.internal.jpa.parsing.AndNode Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of eclipselink Show documentation

EclipseLink build based upon Git transaction f2b9fc5

There is a newer version: 5.0.0-B03

/*
 * Copyright (c) 1998, 2018 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0,
 * or the Eclipse Distribution License v. 1.0 which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 */

// Contributors:
//     Oracle - initial API and implementation from Oracle TopLink
package org.eclipse.persistence.internal.jpa.parsing;

import org.eclipse.persistence.expressions.*;

/**
 * INTERNAL
 * Purpose: Represent an AND in EJBQL
 * 
Responsibilities:

 *  Generate the correct expression for an AND in EJBQL
 * 
 *    @author Jon Driscoll and Joel Lucuik
 *    @since TopLink 4.0
 */
public class AndNode extends LogicalOperatorNode {

    /**
     * AndNode constructor comment.
     */
    public AndNode() {
        super();
    }

    /**
     * INTERNAL
     * Return a EclipseLink expression by 'AND'ing the expressions from the left and right nodes
     */
    public Expression generateExpression(GenerationContext context) {
        // Get the left expression
        Expression whereClause = getLeft().generateExpression(context);

        // Or it with whatever the right expression is
        whereClause = whereClause.and(getRight().generateExpression(context));

        // and return the expression...
        return whereClause;
    }
}