| /******************************************************************************* |
| * Copyright (c) 2006, 2013 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 v1.0 and Eclipse Distribution License v. 1.0 |
| * which accompanies this distribution. |
| * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html |
| * and the Eclipse Distribution License is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * Contributors: |
| * Oracle - initial API and implementation |
| * |
| ******************************************************************************/ |
| package org.eclipse.persistence.internal.jpa.jpql; |
| |
| import org.eclipse.persistence.expressions.ExpressionBuilder; |
| import org.eclipse.persistence.jpa.jpql.parser.AbstractEclipseLinkExpressionVisitor; |
| import org.eclipse.persistence.jpa.jpql.parser.RangeVariableDeclaration; |
| import org.eclipse.persistence.jpa.jpql.parser.WhereClause; |
| import org.eclipse.persistence.queries.ModifyAllQuery; |
| |
| /** |
| * This builder is responsible to populate a {@link ModifyAllQuery}. |
| * |
| * @see DeleteQueryVisitor |
| * @see UpdateQueryVisitor |
| * |
| * @version 2.4 |
| * @since 2.3 |
| * @author Pascal Filion |
| * @author John Bracken |
| */ |
| abstract class AbstractModifyAllQueryBuilder extends AbstractEclipseLinkExpressionVisitor { |
| |
| /** |
| * The {@link ModifyAllQuery} to update. |
| */ |
| final ModifyAllQuery query; |
| |
| /** |
| * The {@link ModifyAllQuery} to populate by using this visitor to visit the parsed tree |
| * representation of the JPQL query. |
| */ |
| final JPQLQueryContext queryContext; |
| |
| /** |
| * Creates a new <code>AbstractModifyAllQueryBuilder</code>. |
| * |
| * @param queryContext The context used to query information about the application metadata and |
| * cached information |
| * @param query The {@link ModifyAllQuery} to populate by using this visitor to visit the parsed |
| * tree representation of the JPQL query |
| */ |
| AbstractModifyAllQueryBuilder(JPQLQueryContext queryContext, ModifyAllQuery query) { |
| super(); |
| this.query = query; |
| this.queryContext = queryContext; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void visit(RangeVariableDeclaration expression) { |
| |
| // Set the ExpressionBuilder |
| ExpressionBuilder expressionBuilder = queryContext.getBaseExpression().getBuilder(); |
| query.setExpressionBuilder(expressionBuilder); |
| |
| // Set the reference class if it's not set |
| if (query.getReferenceClass() == null) { |
| query.setReferenceClass(expressionBuilder.getQueryClass()); |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void visit(WhereClause expression) { |
| query.setSelectionCriteria(queryContext.buildExpression(expression)); |
| } |
| } |