| /* |
| * Copyright (c) 2006, 2021 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 |
| // |
| package org.eclipse.persistence.jpa.jpql.parser; |
| |
| /** |
| * An identification variable qualified by the <code><b>VALUE</b></code> operator is a path |
| * expression. The <code><b>VALUE</b></code> operator may only be applied to identification |
| * variables that correspond to map-valued associations or map-valued element collections. |
| * The type of the path expression is the type computed as the result of the operation; that |
| * is, the abstract schema type of the field that is the value of the <code><b>VALUE</b></code> |
| * operator (the map value). |
| * <p> |
| * This is part of JPA 2.0. |
| * |
| * <div><b>BNF:</b> <code>VALUE(identification_variable)</code><p></p></div> |
| * |
| * @version 2.5 |
| * @since 2.3 |
| * @author Pascal Filion |
| */ |
| public final class ValueExpression extends EncapsulatedIdentificationVariableExpression { |
| |
| /** |
| * Creates a new <code>ValueExpression</code>. |
| * |
| * @param parent The parent of this expression |
| */ |
| public ValueExpression(AbstractExpression parent) { |
| super(parent, VALUE); |
| } |
| |
| @Override |
| public void accept(ExpressionVisitor visitor) { |
| visitor.visit(this); |
| } |
| } |