| /* |
| * 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; |
| |
| /** |
| * An <b>ALL</b> conditional expression is a predicate that is <code>true</code> if the comparison |
| * operation is <code>true</code> for all values in the result of the subquery or the result of the |
| * subquery is empty. An <b>ALL</b> conditional expression is <code>false</code> if the result of |
| * the comparison is <code>false</code> for at least one row, and is unknown if neither |
| * <code>true</code> nor <code>false</code>. |
| * <p> |
| * An <b>ANY</b> conditional expression is a predicate that is <code>true</code> if the comparison |
| * operation is <code>true</code> for some value in the result of the subquery. An <b>ANY</b> |
| * conditional expression is <code>false</code> if the result of the subquery is empty or if the |
| * comparison operation is <code>false</code> for every value in the result of the subquery, and is |
| * unknown if neither <code>true</code> nor <code>false</code>. The keyword <b>SOME</b> is |
| * synonymous with <b>ANY</b>. The comparison operators used with <b>ALL</b> or <b>ANY</b> |
| * conditional expressions are =, {@literal <, <=, >, >=, <>}. The result of the subquery must be |
| * like that of the other argument to the comparison operator in type. |
| * |
| * <div><b>BNF:</b> <code>all_or_any_expression ::= {ALL|ANY|SOME}(subquery)</code></div> |
| * |
| * @version 2.5 |
| * @since 2.3 |
| * @author Pascal Filion |
| */ |
| public final class AllOrAnyExpression extends AbstractSingleEncapsulatedExpression { |
| |
| /** |
| * Creates a new <code>AllOrAnyExpression</code>. |
| * |
| * @param parent The parent of this expression |
| * @param identifier Either {@link Expression#ALL ALL}, {@link Expression#ANY ANY} or {@link |
| * Expression#SOME SOME} |
| */ |
| public AllOrAnyExpression(AbstractExpression parent, String identifier) { |
| super(parent, identifier); |
| } |
| |
| @Override |
| public void accept(ExpressionVisitor visitor) { |
| visitor.visit(this); |
| } |
| |
| @Override |
| public String getEncapsulatedExpressionQueryBNFId() { |
| return SubqueryBNF.ID; |
| } |
| |
| @Override |
| public JPQLQueryBNF getQueryBNF() { |
| return getQueryBNF(AllOrAnyExpressionBNF.ID); |
| } |
| |
| @Override |
| protected AbstractExpression parse(WordParser wordParser, String queryBNFId, boolean tolerant) { |
| |
| if (tolerant) { |
| return super.parse(wordParser, queryBNFId, tolerant); |
| } |
| |
| SimpleSelectStatement expression = new SimpleSelectStatement(this); |
| expression.parse(wordParser, tolerant); |
| return expression; |
| } |
| } |