onetoonetest.java

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//$Id: OneToOneTest.java,v 1.5 2005/02/25 12:44:42 maxcsaucdk Exp $
package org.hibernate.test.metadata.onetoone;

import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.Query;
import org.hibernate.Hibernate;
import org.hibernate.test.metadata.TestCase;
import org.hibernate.test.metadata.Customer;
import org.hibernate.test.metadata.Passport;
import org.hibernate.test.metadata.Ticket;
import org.hibernate.test.metadata.Discount;

/**
 * @author Emmanuel Bernard
 */
public class OneToOneTest extends TestCase {
	
	public OneToOneTest(String x) {
		super(x);
	}

	public void testEagerFetching() throws Exception {
		Session s;
		Transaction tx;
		s = openSession();
		tx = s.beginTransaction();
		Client c = new Client();
		c.setName("Emmanuel");
		Address a = new Address();
		a.setCity("Courbevoie");
		c.setAddress(a);
		s.persist(c);
		tx.commit();
		s.close();

		s = openSession();
		tx = s.beginTransaction();
		Query q = s.createQuery("select c from Client c where c.name = :name");
		q.setString( "name", c.getName() );
		c = (Client) q.uniqueResult();
		//c = (Client) s.get(Client.class, c.getId());
		assertNotNull(c);
		tx.commit();
		s.close();
		assertNotNull( c.getAddress() );
		//assertTrue( "Should be eager fetched", Hibernate.isInitialized( c.getAddress() ) );

	}

	public void testOneToOneAssigned() throws Exception {
		Session s;
		Transaction tx;
		s = openSession();
		tx = s.beginTransaction();		
		Customer c = new Customer();
		c.setName("Hibernatus");
		Passport p = new Passport();
		p.setNumber("123456789");
		s.persist(c); //we need the id to assigned it to passport
		c.setPassport(p);
		p.setOwner(c);
		p.setId( c.getId() );
		
		tx.commit();
		s.close();
		s = openSession();
		tx = s.beginTransaction();
		c = (Customer) s.get( Customer.class, c.getId() );
		assertNotNull(c);
		p = c.getPassport();
		assertNotNull( p );
		assertEquals( "123456789", p.getNumber() );
		assertNotNull( p.getOwner() );
		assertEquals( "Hibernatus", p.getOwner().getName() );
		tx.commit(); // commit or rollback is the same, we don't care for read queries
		s.close();
	}

	public void testOneToOneWithExplicitFk() throws Exception {
		Client c = new Client();
		Address a = new Address();
		a.setCity("Paris");
		c.setName("Emmanuel");
		c.setAddress(a);

		Session s;
		Transaction tx;
		s = openSession();
		tx = s.beginTransaction();
		s.persist(c);
		tx.commit();
		s.close();

		s = openSession();
		tx = s.beginTransaction();
		c = (Client) s.get( Client.class, c.getId() );
		assertNotNull(c);
		assertNotNull( c.getAddress() );
		assertEquals( "Paris", c.getAddress().getCity() );
		tx.commit();
		s.close();
	}

// FIXME HHH-78 HBX-44	
//	public void testCompositePk() throws Exception {
//		Session s;
//		Transaction tx;
//		s = openSession();
//		tx = s.beginTransaction();
//		ComputerPk cid = new ComputerPk();
//		cid.setBrand("IBM");
//		cid.setModel("ThinkPad");
//		Computer c = new Computer();
//		c.setId(cid);
//		c.setCpu("2 GHz");
//		SerialNumberPk sid = new SerialNumberPk();
//		sid.setBrand( cid.getBrand() );
//		sid.setModel( cid.getModel() );
//		SerialNumber sn = new SerialNumber();
//		sn.setId(sid);
//		sn.setValue("REZREZ23424");
//		c.setSerial(sn);
//		s.persist(c);
//		tx.commit();
//		s.close();
//
//		s = openSession();
//		tx = s.beginTransaction();
//		c = (Computer) s.get(Computer.class, cid);
//		assertNotNull(c);
//		assertNotNull( c.getSerial() );
//		assertEquals( sn.getValue(), c.getSerial().getValue() );
//		tx.commit();
//		s.close();
//	}

	/**
	 * @see org.hibernate.test.metadata.TestCase#getMappings()
	 */
	protected Class[] getMappings() {
		return new Class[] {
			Customer.class,
			Ticket.class,
			Discount.class,
			Passport.class,
			Client.class,
			Address.class,
			Computer.class,
			SerialNumber.class
		};
	}

}