org.eclipse.persistence.jpa.jpql.tools.EclipseLinkResolverBuilder 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 346465e
There is a newer version: 5.0.0-B05
/*******************************************************************************
 * Copyright (c) 2011, 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.tools;

import org.eclipse.persistence.jpa.jpql.parser.AsOfClause;
import org.eclipse.persistence.jpa.jpql.parser.CastExpression;
import org.eclipse.persistence.jpa.jpql.parser.ConnectByClause;
import org.eclipse.persistence.jpa.jpql.parser.DatabaseType;
import org.eclipse.persistence.jpa.jpql.parser.EclipseLinkExpressionVisitor;
import org.eclipse.persistence.jpa.jpql.parser.ExtractExpression;
import org.eclipse.persistence.jpa.jpql.parser.HierarchicalQueryClause;
import org.eclipse.persistence.jpa.jpql.parser.OrderSiblingsByClause;
import org.eclipse.persistence.jpa.jpql.parser.RegexpExpression;
import org.eclipse.persistence.jpa.jpql.parser.StartWithClause;
import org.eclipse.persistence.jpa.jpql.parser.TableExpression;
import org.eclipse.persistence.jpa.jpql.parser.TableVariableDeclaration;
import org.eclipse.persistence.jpa.jpql.parser.UnionClause;
import org.eclipse.persistence.jpa.jpql.tools.resolver.ResolverBuilder;

/**
 * An implementation of a {@link ResolverBuilder} that adds support for EclipseLink extension.
 * 
 * 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 2.5
 * @since 2.4
 * @author Pascal Filion
 */
public class EclipseLinkResolverBuilder extends ResolverBuilder
                                        implements EclipseLinkExpressionVisitor {

	/**
	 * Creates a new EclipseLinkResolverBuilder.
	 *
	 * @param queryContext The context used to query information about the JPQL query
	 */
	public EclipseLinkResolverBuilder(EclipseLinkJPQLQueryContext queryContext) {
		super(queryContext);
	}

	/**
	 * {@inheritDoc}
	 */
	public void visit(AsOfClause expression) {
		resolver = buildClassResolver(Object.class);
	}

	/**
	 * {@inheritDoc}
	 */
	public void visit(CastExpression expression) {
		resolver = buildClassResolver(Object.class);
	}

	/**
	 * {@inheritDoc}
	 */
	public void visit(ConnectByClause expression) {
		resolver = buildClassResolver(Object.class);
	}

	/**
	 * {@inheritDoc}
	 */
	public void visit(DatabaseType expression) {
		resolver = buildClassResolver(Object.class);
	}

	/**
	 * {@inheritDoc}
	 */
	public void visit(ExtractExpression expression) {
		resolver = buildClassResolver(Object.class);
	}

	/**
	 * {@inheritDoc}
	 */
	public void visit(HierarchicalQueryClause expression) {
		resolver = buildClassResolver(Object.class);
	}

	/**
	 * {@inheritDoc}
	 */
	public void visit(OrderSiblingsByClause expression) {
		resolver = buildClassResolver(Object.class);
	}

	/**
	 * {@inheritDoc}
	 */
	public void visit(RegexpExpression expression) {
		resolver = buildClassResolver(Object.class);
	}

	/**
	 * {@inheritDoc}
	 */
	public void visit(StartWithClause expression) {
		resolver = buildClassResolver(Object.class);
	}

	/**
	 * {@inheritDoc}
	 */
	public void visit(TableExpression expression) {
		resolver = buildClassResolver(Object.class);
	}

	/**
	 * {@inheritDoc}
	 */
	public void visit(TableVariableDeclaration expression) {
		resolver = buildClassResolver(Object.class);
	}

	/**
	 * {@inheritDoc}
	 */
	public void visit(UnionClause expression) {
		resolver = buildClassResolver(Object.class);
	}
}