| /* |
| * 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; |
| |
| import org.eclipse.persistence.jpa.jpql.WordParser; |
| |
| /** |
| * This {@link Expression} represents an identification variable that maps a {@link java.util.Map Map} |
| * property, either the key, the value or a {@link java.util.Map.Entry Map.Entry}). |
| * <p> |
| * This is part of JPA 2.0. |
| * </p> |
| * <div><b>BNF:</b> <code><identifier>(identification_variable)</code></div> |
| * |
| * @version 2.5 |
| * @since 2.3 |
| * @author Pascal Filion |
| */ |
| public abstract class EncapsulatedIdentificationVariableExpression extends AbstractSingleEncapsulatedExpression { |
| |
| /** |
| * Creates a new <code>MapEntryIdentificationVariableExpression</code>. |
| * |
| * @param parent The parent of this expression |
| * @param identifier The JPQL identifier that starts this expression |
| */ |
| protected EncapsulatedIdentificationVariableExpression(AbstractExpression parent, String identifier) { |
| super(parent, identifier); |
| } |
| |
| @Override |
| public final String getEncapsulatedExpressionQueryBNFId() { |
| return IdentificationVariableBNF.ID; |
| } |
| |
| @Override |
| public JPQLQueryBNF getQueryBNF() { |
| return getQueryBNF(GeneralIdentificationVariableBNF.ID); |
| } |
| |
| @Override |
| protected AbstractExpression parse(WordParser wordParser, String queryBNFId, boolean tolerant) { |
| |
| if (tolerant) { |
| return super.parse(wordParser, LiteralBNF.ID, tolerant); |
| } |
| |
| IdentificationVariable expression = new IdentificationVariable(this, wordParser.word()); |
| expression.parse(wordParser, tolerant); |
| return expression; |
| } |
| } |