Hibernate example source code file (IJTest.java)

This example Hibernate source code file (IJTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Hibernate tags/keywords

exception, hsqldialect, i, i, io, j, j, legacytestcase, override, serializable, serializable, session, string, string, test

The Hibernate IJTest.java source code

//$Id: IJTest.java 10977 2006-12-12 23:28:04Z steve.ebersole@jboss.com $
package org.hibernate.test.legacy;

import java.io.Serializable;

import org.hibernate.LockMode;
import org.hibernate.Session;
import org.hibernate.dialect.HSQLDialect;

import org.junit.Test;

import static org.junit.Assert.assertTrue;

/**
 * @author Gavin King
 */
public class IJTest extends LegacyTestCase {
	@Override
	public String[] getMappings() {
		return new String[] { "legacy/IJ.hbm.xml" };
	}

	@Test
	public void testFormulaDiscriminator() throws Exception {
		if ( getDialect() instanceof HSQLDialect ) return;
		Session s = sessionFactory().openSession();
		s.beginTransaction();
		I i = new I();
		i.setName( "i" );
		i.setType( 'a' );
		J j = new J();
		j.setName( "j" );
		j.setType( 'x' );
		j.setAmount( 1.0f );
		Serializable iid = s.save(i);
		Serializable jid = s.save(j);
		s.getTransaction().commit();
		s.close();

		sessionFactory().getCache().evictEntityRegion( I.class );

		s = sessionFactory().openSession();
		s.beginTransaction();
		j = (J) s.get(I.class, jid);
		i = (I) s.get(I.class, iid);
		assertTrue( i.getClass()==I.class );
		j.setAmount( 0.5f );
		s.lock(i, LockMode.UPGRADE);
		s.getTransaction().commit();
		s.close();

		s = sessionFactory().openSession();
		s.beginTransaction();
		j = (J) s.get(I.class, jid, LockMode.UPGRADE);
		i = (I) s.get(I.class, iid, LockMode.UPGRADE);
		s.getTransaction().commit();
		s.close();

		s = sessionFactory().openSession();
		s.beginTransaction();
		assertTrue( s.createQuery( "from I" ).list().size()==2 );
		assertTrue( s.createQuery( "from J" ).list().size()==1 );
		assertTrue( s.createQuery( "from I i where i.class = 0" ).list().size()==1 );
		assertTrue( s.createQuery( "from I i where i.class = 1" ).list().size()==1 );
		s.getTransaction().commit();
		s.close();

		s = sessionFactory().openSession();
		s.beginTransaction();
		j = (J) s.get(J.class, jid);
		i = (I) s.get(I.class, iid);
		s.delete(j);
		s.delete(i);
		s.getTransaction().commit();
		s.close();

	}
}