| /* |
| * Copyright (c) 2011, 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.tools; |
| |
| import org.eclipse.persistence.jpa.jpql.EclipseLinkLiteralVisitor; |
| import org.eclipse.persistence.jpa.jpql.LiteralVisitor; |
| import org.eclipse.persistence.jpa.jpql.parser.Expression; |
| import org.eclipse.persistence.jpa.jpql.parser.JPQLGrammar; |
| import org.eclipse.persistence.jpa.jpql.tools.resolver.DeclarationResolver; |
| import org.eclipse.persistence.jpa.jpql.tools.resolver.EclipseLinkDeclarationResolver; |
| import org.eclipse.persistence.jpa.jpql.tools.resolver.ResolverBuilder; |
| |
| /** |
| * This context is used to store information related to the JPQL query. It supports the EclipseLink |
| * extension over the default JPQL grammar. |
| * |
| * <pre><code> {@link org.eclipse.persistence.jpa.jpql.tools.spi.IQuery IQuery} externalQuery = ...; |
| * |
| * JPQLQueryContext context = new JPQLQueryContext(DefaultJPQLGrammar.instance()); |
| * context.setQuery(query);</code></pre> |
| * |
| * If the JPQL query is already parsed, then the context can use it and it needs to be set before |
| * setting the {@link org.eclipse.persistence.jpa.jpql.tools.spi.IQuery IQuery}: |
| * <pre><code> {@link org.eclipse.persistence.jpa.jpql.parser.JPQLExpression JPQLExpression} jpqlExpression = ...; |
| * |
| * JPQLQueryContext context = new JPQLQueryContext(DefaultJPQLGrammar.instance()); |
| * context.setJPQLExpression(jpqlExpression); |
| * context.setQuery(query);</code></pre> |
| * |
| * @version 2.4 |
| * @since 2.4 |
| * @author Pascal Filion |
| */ |
| public class EclipseLinkJPQLQueryContext extends JPQLQueryContext { |
| |
| /** |
| * Creates a new <code>EclipseLinkJPQLQueryContext</code>. |
| * |
| * @param jpqlGrammar The grammar that defines how to parse a JPQL query |
| */ |
| public EclipseLinkJPQLQueryContext(JPQLGrammar jpqlGrammar) { |
| super(jpqlGrammar); |
| } |
| |
| /** |
| * Creates a new <code>EclipseLinkJPQLQueryContext</code>. |
| * |
| * @param parent The parent context |
| * @param currentQuery The parsed tree representation of the subquery |
| */ |
| protected EclipseLinkJPQLQueryContext(JPQLQueryContext parent, Expression currentQuery) { |
| super(parent, currentQuery); |
| } |
| |
| @Override |
| protected DeclarationResolver buildDeclarationResolver(DeclarationResolver parent) { |
| return new EclipseLinkDeclarationResolver(parent, this); |
| } |
| |
| @Override |
| protected JPQLQueryContext buildJPQLQueryContext(JPQLQueryContext currentContext, |
| Expression currentQuery) { |
| |
| return new EclipseLinkJPQLQueryContext(currentContext, currentQuery); |
| } |
| |
| @Override |
| protected LiteralVisitor buildLiteralVisitor() { |
| return new EclipseLinkLiteralVisitor(); |
| } |
| |
| @Override |
| protected EclipseLinkParameterTypeVisitor buildParameterTypeVisitor() { |
| return new EclipseLinkParameterTypeVisitor(this); |
| } |
| |
| @Override |
| protected ResolverBuilder buildResolverBuilder() { |
| return new EclipseLinkResolverBuilder(this); |
| } |
| |
| @Override |
| public EclipseLinkJPQLQueryContext getParent() { |
| return (EclipseLinkJPQLQueryContext) super.getParent(); |
| } |
| } |