| /* |
| * 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; |
| |
| /** |
| * The query BNF for a comparison expression. |
| * <p> |
| * JPA 1.0: |
| * <div><b>BNF:</b> <code>comparison_expression ::= string_expression comparison_operator {string_expression | all_or_any_expression} | |
| * boolean_expression { = | {@literal <>} } {boolean_expression | all_or_any_expression} | |
| * enum_expression { = | {@literal <>} } {enum_expression | all_or_any_expression} | |
| * datetime_expression comparison_operator {datetime_expression | all_or_any_expression} | |
| * entity_expression { = | {@literal <>} } {entity_expression | all_or_any_expression} | |
| * arithmetic_expression comparison_operator {arithmetic_expression | all_or_any_expression}</code> |
| * </div> |
| * JPA 2.0, 2.1: |
| * <div><b>BNF:</b> <code>comparison_expression ::= string_expression comparison_operator {string_expression | all_or_any_expression} | |
| * boolean_expression { = | {@literal <>} } {boolean_expression | all_or_any_expression} | |
| * enum_expression { = | {@literal <>} } {enum_expression | all_or_any_expression} | |
| * datetime_expression comparison_operator {datetime_expression | all_or_any_expression} | |
| * entity_expression { = | {@literal <>} } {entity_expression | all_or_any_expression} | |
| * arithmetic_expression comparison_operator {arithmetic_expression | all_or_any_expression} | |
| * entity_type_expression { = | {@literal <>} } entity_type_expression}</code> |
| * </div> |
| * |
| * @version 2.5 |
| * @since 2.3 |
| * @author Pascal Filion |
| */ |
| @SuppressWarnings("nls") |
| public final class ComparisonExpressionBNF extends JPQLQueryBNF { |
| |
| /** |
| * The unique identifier of this BNF rule. |
| */ |
| public static final String ID = "comparison_expression"; |
| |
| /** |
| * Creates a new <code>ComparisonExpressionBNF</code>. |
| */ |
| public ComparisonExpressionBNF() { |
| super(ID); |
| } |
| |
| @Override |
| protected void initialize() { |
| super.initialize(); |
| setCompound(true); |
| setFallbackBNFId(ID); |
| setFallbackExpressionFactoryId(LiteralExpressionFactory.ID); |
| registerExpressionFactory(ComparisonExpressionFactory.ID); |
| registerChild(AllOrAnyExpressionBNF.ID); |
| registerChild(ArithmeticExpressionBNF.ID); |
| registerChild(BooleanExpressionBNF.ID); |
| registerChild(DatetimeExpressionBNF.ID); |
| registerChild(EntityExpressionBNF.ID); |
| registerChild(EnumExpressionBNF.ID); |
| registerChild(StringExpressionBNF.ID); |
| } |
| } |