/*******************************************************************************
 * 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.jpa.jpql.parser;

/**
 * This {@link ExpressionVisitor} traverses up the hierarchy. It is up to the subclass to complete
 * the behavior.
 *
 * @version 2.4
 * @since 2.3
 * @author Pascal Filion
 */
public abstract class AbstractTraverseParentVisitor extends AnonymousExpressionVisitor {

	/**
	 * {@inheritDoc}
	 */
	@Override
	protected void visit(Expression expression) {
		expression.getParent().accept(this);
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void visit(JPQLExpression expression) {
		// This is the root of the parsed tree
	}
}