| /* |
| * Copyright (c) 1998, 2020 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: |
| // tware - initial implementation as part of JPA 2.0 RI |
| package org.eclipse.persistence.internal.jpa.parsing; |
| |
| import org.eclipse.persistence.expressions.Expression; |
| |
| |
| /** |
| * INTERNAL |
| * <p><b>Purpose</b>: Represent an WHEN x THEN y (part of CASE statement) in EJBQL |
| * <p><b>Responsibilities</b>:<ul> |
| * <li> Generate the correct expression for an WHEN THEN in EJBQL |
| * </ul> |
| * @author tware |
| * @since EclipseLink 1.2 |
| */ |
| public class WhenThenNode extends Node { |
| |
| public WhenThenNode(){ |
| super(); |
| } |
| |
| /** |
| * INTERNAL |
| * Generate the a new EclipseLink Expression for this WHEN portion of this node. |
| */ |
| public Expression generateExpressionForWhen(GenerationContext context) { |
| return getLeft().generateExpression(context); |
| } |
| |
| /** |
| * INTERNAL |
| * Generate the a new EclipseLink the THEN portion of this node. |
| */ |
| public Expression generateExpressionForThen(GenerationContext context) { |
| return getRight().generateExpression(context); |
| } |
| |
| @Override |
| public void validate(ParseTreeContext context) { |
| left.validate(context); |
| right.validate(context); |
| setType(right.getType()); |
| } |
| } |