org.eclipse.persistence.jpa.jpql.parser.DeleteClauseRangeVariableDeclarationBNF Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of eclipselink Show documentation

EclipseLink build based upon Git transaction f2b9fc5

There is a newer version: 5.0.0-B03

/*
 * Copyright (c) 2006, 2018 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 range variable declaration expression used by the DELETE clause, which
 * accepts collection and aggregate expression, which is used by invalid queries.
 *
 * BNF: range_variable_declaration ::= entity_name [AS] identification_variable
 *
 * @version 2.4
 * @since 2.3
 * @author Pascal Filion
 */
@SuppressWarnings("nls")
public final class DeleteClauseRangeVariableDeclarationBNF extends JPQLQueryBNF {

    /**
     * The unique identifier of this BNF rule.
     */
    public static final String ID = "default_clause_range_variable_declaration";

    /**
     * Creates a new DeleteClauseRangeVariableDeclarationBNF.
     */
    public DeleteClauseRangeVariableDeclarationBNF() {
        super(ID);
    }

    /**
     * {@inheritDoc}
     */
    @Override
    protected void initialize() {
        super.initialize();
        setHandleAggregate(true);  // To support invalid query
        setHandleCollection(true); // To support invalid query
        setFallbackBNFId(RangeVariableDeclarationBNF.ID);
    }
}