subclasspropertyreftest.java

介绍了hibernate的入门有一些基本常用的事例

//$Id: SubclassPropertyRefTest.java,v 1.1 2005/03/06 16:34:02 oneovthafew Exp $
package org.hibernate.test.subclasspropertyref;

import junit.framework.Test;
import junit.framework.TestSuite;

import org.hibernate.Hibernate;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.test.TestCase;

/**
 * @author Gavin King
 */
public class SubclassPropertyRefTest extends TestCase {
	
	public SubclassPropertyRefTest(String str) {
		super(str);
	}
	
	public void testOneToOnePropertyRef() {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		Customer c = new Customer();
		c.setName("Emmanuel");
		c.setCustomerId("C123-456");
		c.setPersonId("P123-456");
		Account a = new Account();
		a.setCustomer(c);
		a.setPerson(c);
		a.setType('X');
		s.persist(c);
		s.persist(a);
		t.commit();
		s.close();
		
		s = openSession();
		t = s.beginTransaction();
		a = (Account) s.createQuery("from Account acc join fetch acc.customer join fetch acc.person").uniqueResult();
		assertNotNull( a.getCustomer() );
		assertTrue( Hibernate.isInitialized( a.getCustomer() ) );
		assertNotNull( a.getPerson() );
		assertTrue( Hibernate.isInitialized( a.getPerson() ) );
		c = (Customer) s.createQuery("from Customer").uniqueResult();
		assertSame( c, a.getCustomer() );
		assertSame( c, a.getPerson() );
		s.delete(a);
		s.delete( a.getCustomer() );
		s.delete( a.getPerson() );
		t.commit();
		s.close();
	}

	
	protected String[] getMappings() {
		return new String[] { "subclasspropertyref/Person.hbm.xml" };
	}

	public static Test suite() {
		return new TestSuite(SubclassPropertyRefTest.class);
	}

}