SubselectTest.java

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2006-2011, 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.subselect;

import java.util.List;

import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.criterion.Restrictions;

import org.junit.Test;

import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;

/**
 * @author Gavin King
 */
public class SubselectTest extends BaseCoreFunctionalTestCase {
	public String[] getMappings() {
		return new String[] { "subselect/Beings.hbm.xml" };
	}

	@Test
	@SuppressWarnings( {"unchecked"})
	public void testEntitySubselect() {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		Human gavin = new Human();
		gavin.setName( "gavin" );
		gavin.setSex( 'M' );
		gavin.setAddress( "Melbourne, Australia" );
		Alien x23y4 = new Alien();
		x23y4.setIdentity( "x23y4$$hu%3" );
		x23y4.setPlanet( "Mars" );
		x23y4.setSpecies( "martian" );
		s.save(gavin);
		s.save(x23y4);
		s.flush();
		List<Being> beings = ( List<Being>) s.createQuery("from Being").list();
		for ( Being being : beings ) {
			assertNotNull( being.getLocation() );
			assertNotNull( being.getIdentity() );
			assertNotNull( being.getSpecies() );
		}
		s.clear();
		sessionFactory().getCache().evictEntityRegion( Being.class );
		Being gav = (Being) s.get(Being.class, gavin.getId());
		assertEquals( gav.getLocation(), gavin.getAddress() );
		assertEquals( gav.getSpecies(), "human" );
		assertEquals( gav.getIdentity(), gavin.getName() );
		s.clear();
		//test the <synchronized> tag:
		gavin = (Human) s.get(Human.class, gavin.getId());
		gavin.setAddress( "Atlanta, GA" );
		gav = (Being) s.createQuery("from Being b where b.location like '%GA%'").uniqueResult();
		assertEquals( gav.getLocation(), gavin.getAddress() );
		s.delete(gavin);
		s.delete(x23y4);
		assertTrue( s.createQuery("from Being").list().isEmpty() );
		t.commit();
		s.close();
	}

	@Test
	public void testCustomColumnReadAndWrite() {
		Session s = openSession();
		Transaction t = s.beginTransaction();
		final double HUMAN_INCHES = 73;
		final double ALIEN_INCHES = 931;
		final double HUMAN_CENTIMETERS = HUMAN_INCHES * 2.54d;		
		final double ALIEN_CENTIMETERS = ALIEN_INCHES * 2.54d;		
		Human gavin = new Human();
		gavin.setName( "gavin" );
		gavin.setSex( 'M' );
		gavin.setAddress( "Melbourne, Australia" );
		gavin.setHeightInches( HUMAN_INCHES );
		Alien x23y4 = new Alien();
		x23y4.setIdentity( "x23y4$$hu%3" );
		x23y4.setPlanet( "Mars" );
		x23y4.setSpecies( "martian" );
		x23y4.setHeightInches( ALIEN_INCHES );
		s.save(gavin);
		s.save(x23y4);
		s.flush();
		
		// Test value conversion during insert
		Double humanHeightViaSql = (Double)s.createSQLQuery("select height_centimeters from humans").uniqueResult();
		assertEquals(HUMAN_CENTIMETERS, humanHeightViaSql, 0.01d);
		Double alienHeightViaSql = (Double)s.createSQLQuery("select height_centimeters from aliens").uniqueResult();
		assertEquals(ALIEN_CENTIMETERS, alienHeightViaSql, 0.01d);
		s.clear();
		
		// Test projection
		Double heightViaHql = (Double)s.createQuery("select heightInches from Being b where b.identity = 'gavin'").uniqueResult();
		assertEquals(HUMAN_INCHES, heightViaHql, 0.01d);
		
		// Test restriction and entity load via criteria
		Being b = (Being)s.createCriteria(Being.class)
			.add(Restrictions.between("heightInches", HUMAN_INCHES - 0.01d, HUMAN_INCHES + 0.01d))
			.uniqueResult();
		assertEquals(HUMAN_INCHES, b.getHeightInches(), 0.01d);
		
		// Test predicate and entity load via HQL
		b = (Being)s.createQuery("from Being b where b.heightInches between ? and ?")
			.setDouble(0, ALIEN_INCHES - 0.01d)
			.setDouble(1, ALIEN_INCHES + 0.01d)
			.uniqueResult();
		assertEquals(ALIEN_INCHES, b.getHeightInches(), 0.01d);
                s.delete(gavin);
                s.delete(x23y4);		
		t.commit();
		s.close();
		
	}

}