/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2010, Red Hat Inc. or third-party contributors as
 * indicated by the @author tags or express copyright attribution
 * statements applied by the authors.  All third-party contributions are
 * distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.ejb.criteria.path;
import java.io.Serializable;
import java.util.List;
import javax.persistence.criteria.Expression;
import javax.persistence.criteria.JoinType;
import javax.persistence.metamodel.ListAttribute;
import org.hibernate.ejb.criteria.CriteriaBuilderImpl;
import org.hibernate.ejb.criteria.CriteriaSubqueryImpl;
import org.hibernate.ejb.criteria.FromImplementor;
import org.hibernate.ejb.criteria.ListJoinImplementor;
import org.hibernate.ejb.criteria.PathImplementor;
import org.hibernate.ejb.criteria.PathSource;
import org.hibernate.ejb.criteria.expression.ListIndexExpression;

/**
 * TODO : javadoc
 *
 * @author Steve Ebersole
 */
public class ListAttributeJoin<O,E>
		extends PluralAttributeJoinSupport<O, List<E>,E>
		implements ListJoinImplementor<O,E>, Serializable {

	public ListAttributeJoin(
			CriteriaBuilderImpl criteriaBuilder,
			Class<E> javaType,
			PathSource<O> pathSource,
			ListAttribute<? super O, E> joinAttribute,
			JoinType joinType) {
		super( criteriaBuilder, javaType, pathSource, joinAttribute, joinType );
	}

	/**
	 * {@inheritDoc}
	 */
	public Expression<Integer> index() {
		return new ListIndexExpression( criteriaBuilder(), this, getAttribute() );
	}

	@Override
	public ListAttribute<? super O, E> getAttribute() {
		return (ListAttribute<? super O, E>) super.getAttribute();
	}

	@Override
	public ListAttribute<? super O, E> getModel() {
		return getAttribute();
	}

	@Override
	public final ListAttributeJoin<O,E> correlateTo(CriteriaSubqueryImpl subquery) {
		return (ListAttributeJoin<O,E>) super.correlateTo( subquery );
	}

	@Override
	protected FromImplementor<O, E> createCorrelationDelegate() {
		return new ListAttributeJoin<O,E>(
				criteriaBuilder(),
				getJavaType(),
				(PathImplementor<O>) getParentPath(),
				getAttribute(),
				getJoinType()
		);
	}
}