jpa/org.eclipse.persistence.jpa.jpql/src/main/java/org/eclipse/persistence/jpa/jpql/tools/DefaultLiteralVisitor.java

/*
 * Copyright (c) 2006, 2020 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.LiteralVisitor;

/**
 * This visitor traverses an {@link org.eclipse.persistence.jpa.jpql.parser.Expression Expression}
 * and retrieves the "literal" value. The literal to retrieve depends on the {@link
 * org.eclipse.persistence.jpa.jpql.LiteralType type}. The literal is basically a string value like
 * an identification variable name, an input parameter, a path expression, an abstract schema name, etc.
 * <p>
 * Provisional API: This interface is part of an interim API that is still under development and
 * expected to change significantly before reaching stability. It is available at this early stage
 * to solicit feedback from pioneering adopters on the understanding that any code that uses this
 * API will almost certainly be broken (repeatedly) as the API evolves.
 *
 * @version 2.4
 * @since 2.3
 * @author Pascal Filion
 */
public class DefaultLiteralVisitor extends LiteralVisitor {

    /**
     * Creates a new <code>DefaultLiteralVisitor</code>.
     */
    public DefaultLiteralVisitor() {
        super();
    }
}