Hibernate example source code file (StatelessSessionTest.java)

This example Hibernate source code file (StatelessSessionTest.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

blahs, blahs, date, document, document, paper, paper, scrollableresults, statelesssession, string, test, test, transaction, util, white

The Hibernate StatelessSessionTest.java source code

/*
 * 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.stateless;
import java.util.Date;

import org.hibernate.ScrollMode;
import org.hibernate.ScrollableResults;
import org.hibernate.StatelessSession;
import org.hibernate.Transaction;

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.assertNotSame;

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

	@Test
	public void testCreateUpdateReadDelete() {
		StatelessSession ss = sessionFactory().openStatelessSession();
		Transaction tx = ss.beginTransaction();
		Document doc = new Document("blah blah blah", "Blahs");
		ss.insert(doc);
		assertNotNull( doc.getName() );
		Date initVersion = doc.getLastModified();
		assertNotNull( initVersion );
		tx.commit();
		
		tx = ss.beginTransaction();
		doc.setText("blah blah blah .... blah");
		ss.update(doc);
		assertNotNull( doc.getLastModified() );
		assertNotSame( doc.getLastModified(), initVersion );
		tx.commit();
		
		tx = ss.beginTransaction();
		doc.setText("blah blah blah .... blah blay");
		ss.update(doc);
		tx.commit();
		
		Document doc2 = (Document) ss.get(Document.class.getName(), "Blahs");
		assertEquals("Blahs", doc2.getName());
		assertEquals(doc.getText(), doc2.getText());
				
		doc2 = (Document) ss.createQuery("from Document where text is not null").uniqueResult();
		assertEquals("Blahs", doc2.getName());
		assertEquals(doc.getText(), doc2.getText());
		
		ScrollableResults sr = ss.createQuery("from Document where text is not null")
			.scroll(ScrollMode.FORWARD_ONLY);
		sr.next();
		doc2 = (Document) sr.get(0);
		sr.close();
		assertEquals("Blahs", doc2.getName());
		assertEquals(doc.getText(), doc2.getText());
				
		doc2 = (Document) ss.createSQLQuery("select * from Document")
			.addEntity(Document.class)
			.uniqueResult();
		assertEquals("Blahs", doc2.getName());
		assertEquals(doc.getText(), doc2.getText());
				
		doc2 = (Document) ss.createCriteria(Document.class).uniqueResult();
		assertEquals("Blahs", doc2.getName());
		assertEquals(doc.getText(), doc2.getText());
		
		sr = ss.createCriteria(Document.class).scroll(ScrollMode.FORWARD_ONLY);
		sr.next();
		doc2 = (Document) sr.get(0);
		sr.close();
		assertEquals("Blahs", doc2.getName());
		assertEquals(doc.getText(), doc2.getText());

		tx = ss.beginTransaction();
		ss.delete(doc);
		tx.commit();
		ss.close();
	}

	@Test
	public void testHqlBulk() {
		StatelessSession ss = sessionFactory().openStatelessSession();
		Transaction tx = ss.beginTransaction();
		Document doc = new Document("blah blah blah", "Blahs");
		ss.insert(doc);
		Paper paper = new Paper();
		paper.setColor( "White" );
		ss.insert(paper);
		tx.commit();

		tx = ss.beginTransaction();
		int count = ss.createQuery( "update Document set name = :newName where name = :oldName" )
				.setString( "newName", "Foos" )
				.setString( "oldName", "Blahs" )
				.executeUpdate();
		assertEquals( "hql-update on stateless session", 1, count );
		count = ss.createQuery( "update Paper set color = :newColor" )
				.setString( "newColor", "Goldenrod" )
				.executeUpdate();
		assertEquals( "hql-update on stateless session", 1, count );
		tx.commit();

		tx = ss.beginTransaction();
		count = ss.createQuery( "delete Document" ).executeUpdate();
		assertEquals( "hql-delete on stateless session", 1, count );
		count = ss.createQuery( "delete Paper" ).executeUpdate();
		assertEquals( "hql-delete on stateless session", 1, count );
		tx.commit();
		ss.close();
	}

	@Test
	public void testInitId() {
		StatelessSession ss = sessionFactory().openStatelessSession();
		Transaction tx = ss.beginTransaction();
		Paper paper = new Paper();
		paper.setColor( "White" );
		ss.insert(paper);
		assertNotNull( paper.getId() );
		tx.commit();

		tx = ss.beginTransaction();
		ss.delete( ss.get( Paper.class, paper.getId() ) );
		tx.commit();
		ss.close();
	}

	@Test
	public void testRefresh() {
		StatelessSession ss = sessionFactory().openStatelessSession();
		Transaction tx = ss.beginTransaction();
		Paper paper = new Paper();
		paper.setColor( "whtie" );
		ss.insert( paper );
		tx.commit();
		ss.close();

		ss = sessionFactory().openStatelessSession();
		tx = ss.beginTransaction();
		Paper p2 = ( Paper ) ss.get( Paper.class, paper.getId() );
		p2.setColor( "White" );
		ss.update( p2 );
		tx.commit();
		ss.close();

		ss = sessionFactory().openStatelessSession();
		tx = ss.beginTransaction();
		assertEquals( "whtie", paper.getColor() );
		ss.refresh( paper );
		assertEquals( "White", paper.getColor() );
		ss.delete( paper );
		tx.commit();
		ss.close();
	}

}