Hibernate example source code file (CollectionElementTest.java)

This example Hibernate source code file (CollectionElementTest.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

boy, boy, exception, exception, integer, john, johnny, session, test, test, testcourse, thing, thing, transaction, util

The Hibernate CollectionElementTest.java source code

/*
 * 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.annotations.collectionelement;

import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Locale;

import org.hibernate.Filter;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.mapping.Collection;
import org.hibernate.mapping.Column;

import org.junit.Test;

import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
import org.hibernate.test.annotations.Country;

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

/**
 * @author Emmanuel Bernard
 * @author Hardy Ferentschik
 */
@SuppressWarnings("unchecked")
public class CollectionElementTest extends BaseCoreFunctionalTestCase {
	@Test
	public void testSimpleElement() throws Exception {
		assertEquals(
				"BoyFavoriteNumbers",
				configuration().getCollectionMapping( Boy.class.getName() + '.' + "favoriteNumbers" )
						.getCollectionTable().getName()
		);
		Session s = openSession();
		s.getTransaction().begin();
		Boy boy = new Boy();
		boy.setFirstName( "John" );
		boy.setLastName( "Doe" );
		boy.getNickNames().add( "Johnny" );
		boy.getNickNames().add( "Thing" );
		boy.getScorePerNickName().put( "Johnny", new Integer( 3 ) );
		boy.getScorePerNickName().put( "Thing", new Integer( 5 ) );
		int[] favNbrs = new int[4];
		for (int index = 0; index < favNbrs.length - 1; index++) {
			favNbrs[index] = index * 3;
		}
		boy.setFavoriteNumbers( favNbrs );
		boy.getCharacters().add( Character.GENTLE );
		boy.getCharacters().add( Character.CRAFTY );

		HashMap<String,FavoriteFood> foods = new HashMap();
		foods.put( "breakfast", FavoriteFood.PIZZA);
		foods.put( "lunch", FavoriteFood.KUNGPAOCHICKEN);
		foods.put( "dinner", FavoriteFood.SUSHI);
		boy.setFavoriteFood(foods);
		s.persist( boy );
		s.getTransaction().commit();
		s.clear();
		Transaction tx = s.beginTransaction();
		boy = (Boy) s.get( Boy.class, boy.getId() );
		assertNotNull( boy.getNickNames() );
		assertTrue( boy.getNickNames().contains( "Thing" ) );
		assertNotNull( boy.getScorePerNickName() );
		assertTrue( boy.getScorePerNickName().containsKey( "Thing" ) );
		assertEquals( new Integer( 5 ), boy.getScorePerNickName().get( "Thing" ) );
		assertNotNull( boy.getFavoriteNumbers() );
		assertEquals( 3, boy.getFavoriteNumbers()[1] );
		assertTrue( boy.getCharacters().contains( Character.CRAFTY ) );
		assertTrue( boy.getFavoriteFood().get("dinner").equals(FavoriteFood.SUSHI));
		assertTrue( boy.getFavoriteFood().get("lunch").equals(FavoriteFood.KUNGPAOCHICKEN));
		assertTrue( boy.getFavoriteFood().get("breakfast").equals(FavoriteFood.PIZZA));
		List result = s.createQuery( "select boy from Boy boy join boy.nickNames names where names = :name" )
				.setParameter( "name", "Thing" ).list();
		assertEquals( 1, result.size() );
		s.delete( boy );
		tx.commit();
		s.close();
	}

	@Test
	public void testCompositeElement() throws Exception {
		Session s = openSession();
		s.getTransaction().begin();
		Boy boy = new Boy();
		boy.setFirstName( "John" );
		boy.setLastName( "Doe" );
		Toy toy = new Toy();
		toy.setName( "Balloon" );
		toy.setSerial( "serial001" );
		toy.setBrand( new Brand() );
		toy.getBrand().setName( "Bandai" );
		boy.getFavoriteToys().add( toy );
		s.persist( boy );
		s.getTransaction().commit();
		s.clear();
		Transaction tx = s.beginTransaction();
		boy = (Boy) s.get( Boy.class, boy.getId() );
		assertNotNull( boy.getFavoriteToys() );
		assertTrue( boy.getFavoriteToys().contains( toy ) );
		assertEquals( "@Parent is failing", boy, boy.getFavoriteToys().iterator().next().getOwner() );
		s.delete( boy );
		tx.commit();
		s.close();
	}

	@Test
	public void testAttributedJoin() throws Exception {
		Session s = openSession();
		s.getTransaction().begin();
		Country country = new Country();
		country.setName( "Australia" );
		s.persist( country );

		Boy boy = new Boy();
		boy.setFirstName( "John" );
		boy.setLastName( "Doe" );
		CountryAttitude attitude = new CountryAttitude();
		// TODO: doesn't work
		attitude.setBoy( boy );
		attitude.setCountry( country );
		attitude.setLikes( true );
		boy.getCountryAttitudes().add( attitude );
		s.persist( boy );
		s.getTransaction().commit();
		s.clear();

		Transaction tx = s.beginTransaction();
		boy = (Boy) s.get( Boy.class, boy.getId() );
		assertTrue( boy.getCountryAttitudes().contains( attitude ) );
		s.delete( boy );
		s.delete( s.get( Country.class, country.getId() ) );
		tx.commit();
		s.close();
	}

	@Test
	public void testLazyCollectionofElements() throws Exception {
		assertEquals(
				"BoyFavoriteNumbers",
				configuration().getCollectionMapping( Boy.class.getName() + '.' + "favoriteNumbers" )
						.getCollectionTable().getName()
		);
		Session s = openSession();
		s.getTransaction().begin();
		Boy boy = new Boy();
		boy.setFirstName( "John" );
		boy.setLastName( "Doe" );
		boy.getNickNames().add( "Johnny" );
		boy.getNickNames().add( "Thing" );
		boy.getScorePerNickName().put( "Johnny", new Integer( 3 ) );
		boy.getScorePerNickName().put( "Thing", new Integer( 5 ) );
		int[] favNbrs = new int[4];
		for (int index = 0; index < favNbrs.length - 1; index++) {
			favNbrs[index] = index * 3;
		}
		boy.setFavoriteNumbers( favNbrs );
		boy.getCharacters().add( Character.GENTLE );
		boy.getCharacters().add( Character.CRAFTY );
		s.persist( boy );
		s.getTransaction().commit();
		s.clear();
		Transaction tx = s.beginTransaction();
		boy = (Boy) s.get( Boy.class, boy.getId() );
		assertNotNull( boy.getNickNames() );
		assertTrue( boy.getNickNames().contains( "Thing" ) );
		assertNotNull( boy.getScorePerNickName() );
		assertTrue( boy.getScorePerNickName().containsKey( "Thing" ) );
		assertEquals( new Integer( 5 ), boy.getScorePerNickName().get( "Thing" ) );
		assertNotNull( boy.getFavoriteNumbers() );
		assertEquals( 3, boy.getFavoriteNumbers()[1] );
		assertTrue( boy.getCharacters().contains( Character.CRAFTY ) );
		List result = s.createQuery( "select boy from Boy boy join boy.nickNames names where names = :name" )
				.setParameter( "name", "Thing" ).list();
		assertEquals( 1, result.size() );
		s.delete( boy );
		tx.commit();
		s.close();
	}

	@Test
	public void testFetchEagerAndFilter() throws Exception {
		Session s = openSession();
		Transaction tx = s.beginTransaction();

		TestCourse test = new TestCourse();

		LocalizedString title = new LocalizedString( "title in english" );
		title.getVariations().put( Locale.FRENCH.getLanguage(), "title en francais" );
		test.setTitle( title );
		s.save( test );

		s.flush();
		s.clear();

		Filter filter = s.enableFilter( "selectedLocale" );
		filter.setParameter( "param", "fr" );

		Query q = s.createQuery( "from TestCourse t" );
		List l = q.list();
		assertEquals( 1, l.size() );

		TestCourse t = (TestCourse) s.get( TestCourse.class, test.getTestCourseId() );
		assertEquals( 1, t.getTitle().getVariations().size() );

		tx.rollback();

		s.close();
	}

	@Test
	public void testMapKeyType() throws Exception {
		Matrix m = new Matrix();
		m.getMvalues().put( 1, 1.1f );
		Session s = openSession();
		Transaction tx = s.beginTransaction();
		s.persist( m );
		s.flush();
		s.clear();
		m = (Matrix) s.get( Matrix.class, m.getId() );
		assertEquals( 1.1f, m.getMvalues().get( 1 ), 0.01f );
		tx.rollback();
		s.close();
	}

	@Test
	public void testDefaultValueColumnForBasic() throws Exception {
		isDefaultValueCollectionColumnPresent( Boy.class.getName(), "hatedNames" );
		isDefaultValueCollectionColumnPresent( Boy.class.getName(), "preferredNames" );
		isCollectionColumnPresent( Boy.class.getName(), "nickNames", "nickNames" );
		isDefaultValueCollectionColumnPresent( Boy.class.getName(), "scorePerPreferredName");
	}

	@Test
	public void testDefaultFKNameForElementCollection() throws Exception {
		isCollectionColumnPresent( Boy.class.getName(), "hatedNames", "Boy_id" );
	}

	private void isLegacyValueCollectionColumnPresent(String collectionHolder, String propertyName) {

	}

	private void isDefaultValueCollectionColumnPresent(String collectionOwner, String propertyName) {
		isCollectionColumnPresent( collectionOwner, propertyName, propertyName );
	}

	private void isCollectionColumnPresent(String collectionOwner, String propertyName, String columnName) {
		final Collection collection = configuration().getCollectionMapping( collectionOwner + "." + propertyName );
		final Iterator columnIterator = collection.getCollectionTable().getColumnIterator();
		boolean hasDefault = false;
		while ( columnIterator.hasNext() ) {
			Column column = (Column) columnIterator.next();
			if ( columnName.equals( column.getName() ) ) hasDefault = true;
		}
		assertTrue( "Could not find " + columnName, hasDefault );
	}

	@Override
	protected Class[] getAnnotatedClasses() {
		return new Class[] {
				Boy.class,
				Country.class,
				TestCourse.class,
				Matrix.class
		};
	}
}