/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2011, 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.test.keymanytoone.bidir.component;
import java.util.List;

import org.hibernate.Session;
import org.hibernate.cfg.Configuration;
import org.hibernate.cfg.Environment;

import org.junit.Test;

import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;

import static org.junit.Assert.assertEquals;

/**
 * @author Steve Ebersole
 */
public class LazyKeyManyToOneTest extends BaseCoreFunctionalTestCase {
	@Override
	public String[] getMappings() {
		return new String[] { "keymanytoone/bidir/component/LazyMapping.hbm.xml" };
	}

	@Override
	public void configure(Configuration cfg) {
		super.configure( cfg );
		cfg.setProperty( Environment.GENERATE_STATISTICS, "true" );
	}

	@Test
	public void testQueryingOnMany2One() {
		Session s = openSession();
		s.beginTransaction();
		Customer cust = new Customer( "Acme, Inc." );
		Order order = new Order( new Order.Id( cust, 1 ) );
		cust.getOrders().add( order );
		s.save( cust );
		s.getTransaction().commit();
		s.close();

		s = openSession();
		s.beginTransaction();
		List results = s.createQuery( "from Order o where o.id.customer.name = :name" )
				.setParameter( "name", cust.getName() )
				.list();
		assertEquals( 1, results.size() );
		s.getTransaction().commit();
		s.close();

		s = openSession();
		s.beginTransaction();
		s.delete( cust );
		s.getTransaction().commit();
		s.close();
	}

	@Test
	public void testSaveCascadedToKeyManyToOne() {
		// test cascading a save to an association with a key-many-to-one which refers to a
		// just saved entity
		Session s = openSession();
		s.beginTransaction();
		Customer cust = new Customer( "Acme, Inc." );
		Order order = new Order( new Order.Id( cust, 1 ) );
		cust.getOrders().add( order );
		sessionFactory().getStatistics().clear();
		s.save( cust );
		s.flush();
		assertEquals( 2, sessionFactory().getStatistics().getEntityInsertCount() );
		s.delete( cust );
		s.getTransaction().commit();
		s.close();
	}

	@Test
	public void testLoadingStrategies() {
		Session s = openSession();
		s.beginTransaction();
		Customer cust = new Customer( "Acme, Inc." );
		Order order = new Order( new Order.Id( cust, 1 ) );
		cust.getOrders().add( order );
		s.save( cust );
		s.getTransaction().commit();
		s.close();

		s = openSession();
		s.beginTransaction();

		cust = ( Customer ) s.get( Customer.class, cust.getId() );
		assertEquals( 1, cust.getOrders().size() );
		s.clear();

		cust = ( Customer ) s.createQuery( "from Customer" ).uniqueResult();
		assertEquals( 1, cust.getOrders().size() );
		s.clear();

		cust = ( Customer ) s.createQuery( "from Customer c join fetch c.orders" ).uniqueResult();
		assertEquals( 1, cust.getOrders().size() );
		s.clear();

		s.delete( cust );
		s.getTransaction().commit();
		s.close();
	}
}